CN118399801A

CN118399801A - Electric power control method based on high-voltage brushless

Info

Publication number: CN118399801A
Application number: CN202410858269.7A
Authority: CN
Inventors: 王红军
Original assignee: Zhejiang Weichuangyuan Industrial Co ltd
Current assignee: Zhejiang Weichuangyuan Industrial Co ltd
Priority date: 2024-06-28
Filing date: 2024-06-28
Publication date: 2024-07-26
Anticipated expiration: 2044-06-28
Also published as: CN118399801B

Abstract

The invention relates to the technical field of power electronics, and discloses a power electronic control method based on high-voltage brushless, which comprises the following steps: acquiring one or more initial high-voltage brushless motors, acquiring one or more monitoring frequencies according to the extracted initial high-voltage brushless motors, confirming one or more redundant installation positions and a first installation position by using the one or more monitoring frequencies, starting the initial high-voltage brushless motors installed at the first installation position after confirming that the initial high-voltage brushless motors are in a normal mechanical state, acquiring monitoring parameters based on the monitoring frequencies, and adjusting the redundant motors installed at the redundant installation positions and the initial high-voltage brushless motors based on a motor replacement unit after confirming that the initial high-voltage brushless motors installed at the first installation position are in an abnormal working state by using the monitoring parameters so as to realize control of the high-voltage brushless motors. The invention mainly aims to solve the problems of resource waste and poor stability caused by electric power control of a high-voltage brushless motor.

Description

Electric power control method based on high-voltage brushless

Technical Field

The invention relates to a high-voltage brushless-based electric power control method, and belongs to the technical field of power electronics.

Background

With the rapid development of technology, high-voltage brushless motors are widely used in various fields. Accordingly, how to realize the electric power control of the high-voltage brushless motor is a problem to be solved.

Currently, the electric control method for the high-voltage brushless motor comprises the following steps: and (3) overhauling the high-voltage brushless motor at regular time or overhauling the high-voltage brushless motor after the high-voltage brushless motor fails.

Although the method can realize the electric power control of the high-voltage brushless motor, when the high-voltage brushless motor is overhauled, different monitoring frequencies are not drawn out according to different time periods, so that the problems of resource waste and poor stability are caused when the electric power control of the high-voltage brushless motor is carried out.

Disclosure of Invention

The invention provides a high-voltage brushless-based electric power control method, a high-voltage brushless-based electric power control device and a computer readable storage medium, and mainly aims to solve the problems of resource waste and poor stability caused by electric power control of a high-voltage brushless motor.

In order to achieve the above object, the present invention provides a high voltage brushless-based electric power control method, comprising:

Receiving an electric control instruction, and confirming an electric control environment based on the electric control instruction, wherein the electric control environment comprises: the motor control system comprises a plurality of different high-voltage brushless motors and an electric control system, wherein the electric control system comprises a motor replacement unit, a motor adjustment unit and a motor installation unit;

Acquiring one or more initial high-voltage brushless motors based on the plurality of different high-voltage brushless motors;

Sequentially extracting initial high-voltage brushless motors from the one or more initial high-voltage brushless motors, and performing the following operations on the extracted initial high-voltage brushless motors:

acquiring one or more monitoring frequencies according to the extracted initial high-voltage brushless motor;

confirming and receiving a motor installation instruction from a motor installation unit, and confirming one or more redundant installation positions and first installation positions by utilizing the motor installation instruction and one or more monitoring frequencies, wherein the redundant installation positions refer to the installation positions of the redundant motor, and the one or more redundant installation positions and the first installation positions corresponding to the one or more redundant installation positions form a second installation position together;

After confirming that the initial high-voltage brushless motor is in a normal mechanical state, performing installation operation on the initial high-voltage brushless motor by using a second installation position, starting the initial high-voltage brushless motor installed at a first installation position, and acquiring monitoring parameters based on monitoring frequency corresponding to the second installation position, wherein the monitoring parameters consist of monitoring temperature, monitoring voltage and monitoring current, and confirming that the initial high-voltage brushless motor installed at the first installation position is in an abnormal working state by using the monitoring parameters;

and confirming that the initial high-voltage brushless motor corresponds to one or more redundant motors installed in a second installation position based on the motor adjusting unit, obtaining one or more target motors, and controlling the high-voltage brushless motor based on the motor replacing unit and the one or more target motors.

Optionally, the acquiring one or more initial high voltage brushless motors based on the plurality of different high voltage brushless motors includes:

Sequentially extracting high-voltage brushless motors from the plurality of different high-voltage brushless motors, and performing the following operations on the extracted high-voltage brushless motors:

Acquiring extracted parameter data of the high-voltage brushless motor, wherein the parameter data comprises the following components: motor size, motor material, motor type, rated current, rated voltage, rated rotation speed, rated power and rated torque;

performing identification operation on the extracted high-voltage brushless motor based on the parameter data to obtain an identification brushless motor;

and respectively summarizing the identification brushless motors according to different parameter data to obtain one or more initial high-voltage brushless motors.

Optionally, the acquiring one or more monitoring frequencies according to the extracted initial high-voltage brushless motor includes:

Acquiring a historical overhaul data set based on the extracted initial high-voltage brushless motor, wherein the historical overhaul data set comprises a plurality of historical data, and each historical data is composed of: parameter data and maintenance time;

Acquiring the expected service life of an initial high-voltage brushless motor, and calculating the upper limit value of a first maintenance time period by using the lower limit value of the preset first maintenance time period and a pre-constructed service life dividing relation, wherein the service life dividing relation is as follows;

；

Wherein, An upper limit value representing the first service period,The predetermined coefficient is indicated to be a predetermined coefficient,A lower limit value representing the first service period;

Taking the upper limit value of the first maintenance time period as the lower limit value of the second first maintenance time period, calculating the upper limit value of the second first maintenance time period according to the life dividing relation by using the lower limit value of the second first maintenance time period, and so on until the calculated upper limit value is greater than or equal to the expected life, taking the calculated upper limit value as a target upper limit value, and obtaining M first maintenance time periods, wherein M is an integer greater than or equal to 1;

One or more monitoring frequencies are obtained based on the M first service periods.

Optionally, the acquiring one or more monitoring frequencies based on the M first overhaul periods includes:

Dividing the historical overhaul data sets by using M first overhaul time periods to obtain N divided data sets, wherein N is an integer greater than or equal to 1, overhaul time corresponding to each historical data in the divided data sets is located in the first overhaul time period corresponding to the divided data sets, and the divided data sets comprise one or more historical data;

Sequentially extracting the divided data sets from the N divided data sets, and performing the following operations on the extracted divided data sets:

calculating a reference service value based on the extracted divided data set and a pre-constructed service life ratio relation, wherein the service life ratio relation is as follows:

；

Wherein, Representing the extracted firstReference overhaul values corresponding to the divided data sets,Are all the coefficients of the preset value,Representing the extracted firstThe individual partition dataset includesThe number of data in the history is,Represent the firstThe number of historical data included in the individual divided data sets,Indicating the expected lifetime of the device,Representing the extracted partition datasetMaintenance time corresponding to the historical data;

Summarizing the reference overhaul values to obtain a reference overhaul value set, and acquiring one or more monitoring frequencies based on the reference overhaul value set.

Optionally, the acquiring one or more monitoring frequencies based on the reference overhaul value set includes:

Acquiring one or more reference overhaul range sections by utilizing the reference overhaul value set, and acquiring one or more reference overhaul data sets based on the one or more reference overhaul range sections, wherein the reference overhaul range sections correspond to the reference overhaul data sets one by one, and the reference overhaul data sets comprise one or more divided data sets;

Sequentially extracting reference service data sets from the one or more reference service data sets, and performing the following operations on the extracted reference service data sets:

Sequentially extracting the divided data sets from the extracted reference overhaul data sets, and performing the following operations on the extracted divided data sets:

Executing identification operation on the divided data set by using a first overhaul period corresponding to the divided data set to obtain identification divided data;

Summarizing the identification dividing data to obtain an identification overhaul data set;

Summarizing the identification overhaul data sets to obtain one or more identification overhaul data sets, and obtaining one or more monitoring frequencies based on the one or more identification overhaul data sets, wherein the monitoring frequencies correspond to the identification overhaul data sets one by one.

Optionally, the confirming that the initial high voltage brushless motor is in a normal mechanical state includes:

sequentially extracting initial high-voltage brushless motors from one or more initial high-voltage brushless motors, and performing the following operations on the extracted initial high-voltage brushless motors:

confirming the load torque for testing the initial high-voltage brushless motor, acquiring the extracted motor rotating speed of the initial high-voltage brushless motor, acquiring the estimated coefficient of the extracted initial high-voltage brushless motor, and calculating the electromagnetic torque based on the motor rotating speed, the load torque and the estimated coefficient, wherein the calculation formula is as follows:

；

Wherein, In the event of an electromagnetic torque,In order to be able to carry out a torque,In order to be a damping coefficient,The rotating speed of the motor is represented,In order for the moment of inertia to be of interest,The time is represented by the time period of the day,Is a pre-estimated coefficient, and the coefficient is related to the type of the initial high-voltage brushless motor;

And confirming that the initial high-voltage brushless motor is in a normal mechanical state based on the electromagnetic torque and the load torque.

Optionally, the obtaining the extracted estimated coefficient of the initial high-voltage brushless motor includes:

acquiring a first initial high-voltage brushless motor set, wherein the first initial high-voltage brushless motor set comprises G first initial high-voltage brushless motors, and the types of the first initial high-voltage brushless motors are the same as the types of motors corresponding to the extracted initial high-voltage brushless motors;

Acquiring a reference electromagnetic torque set based on a first initial high-voltage brushless motor set, wherein the reference electromagnetic torque set comprises a plurality of reference electromagnetic torque groups, and G reference electromagnetic torques are contained in the reference electromagnetic torque groups;

Calculating the pre-estimated coefficient by using a reference electromagnetic torque set and a pre-constructed approximate duty ratio relation, wherein the approximate duty ratio relation is as follows:

；

Wherein, Indicating commonality among reference electromagnetic torque setsThe electromagnetic torque of the reference is used for the control of the motor,Representing a preset firstThe number of coefficients is set to be the number of coefficients,Representing the first of the reference electromagnetic torque setsThe electromagnetic torque of the reference is used for the control of the motor,Indicating that the reference electromagnetic torque is common in the setThe set of reference electromagnetic torque values,Representation and utilization of the firstThe reference values for solving the pre-estimated coefficients are calculated by the reference electromagnetic torque sets.

Optionally, the determining that the initial high-voltage brushless motor is in the normal mechanical state based on the electromagnetic torque and the load torque includes:

calculating the absolute difference value of the load torque and the electromagnetic torque to obtain a reference torque;

comparing the reference torque with a preset torque threshold;

If the reference torque is larger than a torque threshold value, prompting that the extracted initial high-voltage brushless motor is in an abnormal mechanical state;

And if the reference torque is smaller than or equal to the torque threshold value, confirming that the initial high-voltage brushless motor is in a normal mechanical state.

Optionally, the determining, by using the monitoring parameter, that the initial high-voltage brushless motor installed at the first installation position is in the abnormal operation state includes:

working heat is calculated based on the monitoring parameters and a pre-constructed motor heat relation, wherein the motor heat relation is as follows:

；

Wherein, The heat of operation is indicated to be that of the working heat,Are all the coefficients of the preset value,Representing the monitored temperature in the monitored parameter,Representing the monitored voltage in the monitored parameter,The rated voltage in the parameter data is represented,Representing the monitored current in the monitored parameter,Representing the rated current in the parameter data;

And confirming that the initial high-voltage brushless motor installed at the first installation position is in an abnormal operation state based on the operation heat.

Optionally, the determining that the initial high-voltage brushless motor installed at the first installation position is in the abnormal operation state based on the operation heat includes:

Comparing the working heat with a preset heat threshold;

If the working heat is greater than the heat threshold, confirming that the initial high-voltage brushless motor installed at the first installation position is in an abnormal working state;

And if the working heat is smaller than or equal to the heat threshold, confirming that the initial high-voltage brushless motor installed at the first installation position is in a normal working state, and returning to the step of acquiring the monitoring parameters based on the monitoring frequency corresponding to the second installation position.

In order to solve the above-mentioned problems, the present invention also provides an electronic apparatus including:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to implement the high voltage brushless-based power electronic control method described above.

In order to solve the above-mentioned problems, the present invention also provides a computer-readable storage medium having stored therein at least one instruction that is executed by a processor in an electronic device to implement the high-voltage brushless-based power control method described above.

Compared with the problems in the background art, the method and the device receive the electric control instruction first and confirm the electric control environment based on the electric control instruction, wherein the electric control environment comprises the following steps: the motor control system comprises a plurality of different high-voltage brushless motors and an electric control system, wherein the electric control system comprises a motor replacement unit, a motor adjustment unit and a motor installation unit. The invention further discloses a method for monitoring the initial high-voltage brushless motor, which comprises the steps of acquiring one or more initial high-voltage brushless motors based on the plurality of different high-voltage brushless motors, acquiring one or more monitoring frequencies according to the extracted initial high-voltage brushless motors, dividing the plurality of different high-voltage brushless motors into one or more initial high-voltage brushless motors according to parameter data corresponding to each high-voltage brushless motor, acquiring the monitoring frequencies in different time periods based on each initial high-voltage brushless motor, and realizing flexible monitoring of each initial high-voltage brushless motor, wherein one monitoring frequency is corresponding to each time period, so that consumed energy consumption when monitoring the initial high-voltage brushless motors is reduced. Finally, the invention confirms and receives the motor installation instruction from the motor installation unit, confirms one or more redundant installation positions and a first installation position by utilizing the motor installation instruction and one or more monitoring frequencies, and after confirming that the initial high-voltage brushless motor is in a normal mechanical state, starts the initial high-voltage brushless motor installed at the first installation position after executing installation operation on the initial high-voltage brushless motor by utilizing the second installation position, and acquires monitoring parameters based on the monitoring frequency corresponding to the second installation position, wherein the monitoring parameters are composed of monitoring temperature, monitoring voltage and monitoring current, and after confirming that the initial high-voltage brushless motor installed at the first installation position is in an abnormal working state by utilizing the monitoring parameters, confirms one or more redundant motors corresponding to the initial high-voltage brushless motor installed in the second installation position by utilizing the motor adjustment unit, so as to obtain one or more target motors, and realizes control on the high-voltage brushless motor based on the motor replacement unit and the one or more target motors. The invention confirms the position of the high-voltage brushless motor which is easy to generate faults by utilizing the monitoring frequency, and one or more redundant installation positions are formulated at the position, so as to cope with the fault situation of the high-voltage brushless motor, improve the stability of a system where the high-voltage brushless motor is positioned, and screen the initial high-voltage brushless motor by electromagnetic torque generated by the initial high-voltage brushless motor before the initial high-voltage brushless motor is installed, so that the initial high-voltage brushless motor in a normal mechanical state is obtained, and further the stability of the system where the high-voltage brushless motor is positioned is improved. Therefore, the invention provides a high-voltage brushless-based power electronic control method, a device, electronic equipment and a computer readable storage medium, which mainly aim to solve the problems of resource waste and poor stability caused by power electronic control of a high-voltage brushless motor.

Drawings

Fig. 1 is a schematic flow chart of a high-voltage brushless-based electric control method according to an embodiment of the invention;

Fig. 2 is a schematic structural diagram of an electronic device implementing the high-voltage brushless-based power electronic control method according to an embodiment of the present invention.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

The embodiment of the application provides a high-voltage brushless-based electric power control method. The execution subject of the high-voltage brushless-based power electronic control method includes, but is not limited to, at least one of a server, a terminal, and the like, which can be configured to execute the method provided by the embodiment of the application. In other words, the high voltage brushless-based power electronic control method may be performed by software or hardware installed in a terminal device or a server device. The service end includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like.

Example 1:

referring to fig. 1, a flow chart of a high-voltage brushless-based electric control method according to an embodiment of the invention is shown. In this embodiment, the high-voltage brushless-based power electronic control method includes:

s1, receiving an electric control instruction, and confirming an electric control environment based on the electric control instruction, wherein the electric control environment comprises: the motor control system comprises a plurality of different high-voltage brushless motors and an electric control system, wherein the electric control system comprises a motor replacement unit, a motor adjustment unit and a motor installation unit.

It should be noted that, since different high-voltage brushless motors are applicable, it is necessary to clarify the conditions used by the high-voltage brushless motors before confirming the electric control environment, and further, to improve the accuracy of the control of the high-voltage brushless motors. The electronic control system is APP or software for managing the high-voltage brushless motor.

It is understood that the electronically controlled command is a command issued by a person performing a control operation on the high voltage brushless motor. The electrical control environment is a necessary environment for controlling the high-voltage brushless motor, and the electrical control environment includes: the motor control system comprises a plurality of different high-voltage brushless motors and an electric control system, wherein the electric control system comprises a motor replacement unit, a motor adjustment unit and a motor installation unit. For specific application of the unit reference is made to the following examples.

As an example, the king is taken as a control manager of the high-voltage brushless motor, and now the delegation needs to control and manage the high-voltage brushless motor in a certain project, so that the king sends out an electric control command, and empirically selects a plurality of high-voltage brushless motors possibly conforming to the project, and confirms an electric control system for managing the high-voltage brushless motors.

S2, acquiring one or more initial high-voltage brushless motors based on the plurality of different high-voltage brushless motors.

Further, the obtaining one or more initial high voltage brushless motors based on the plurality of different high voltage brushless motors includes:

It can be understood that the usage positions, actions, output parameters, etc. of the plurality of different high-voltage brushless motors may be different due to different parameter data, and the heat dissipation mode or heat dissipation rate of the high-voltage brushless motors may be affected due to different motor sizes of the high-voltage brushless motors. Thus, the classification of the plurality of different high voltage brushless motors into one or more initial high voltage brushless motors enables the classification management of the high voltage brushless motors. For example: in important working occasions, it is generally necessary to develop a redundant high-voltage brushless motor, so that when the working high-voltage brushless motor fails, the redundant high-voltage brushless motor can timely take over the working of the original high-voltage brushless motor, and the reference sources selected by the redundant high-voltage brushless motor are as follows: the same initial high voltage brushless motor. The motor dimensions include: length, width, height of the motor, whether there is a chamfer, whether there is a pre-built radiator, etc., all parameters included in the high voltage brushless motor. The motor type is a type of high-voltage brushless motor, for example: for convenience of understanding, the motor types are only used herein as examples, and the rated current, the rated rotation speed, the rated power and the rated torque of the a-type high-voltage brushless motor are the same as those of the b-type high-voltage brushless motor, but the heat dissipation rate or the resistivity of the a-type high-voltage brushless motor are different due to different motor materials used by the a-type high-voltage brushless motor, so that the applicable scenes of the a-type high-voltage brushless motor are different. The motor material is the material of each component part in the high-voltage brushless motor. Rated current, rated voltage, rated rotational speed, rated power and rated torque are parameters of the high-voltage brushless motor.

S3, acquiring one or more monitoring frequencies according to the extracted initial high-voltage brushless motor.

Further, the acquiring one or more monitoring frequencies according to the extracted initial high-voltage brushless motor comprises:

；

It is understood that the historical maintenance data set refers to a collection of recorded data when the same type of high voltage brushless motor as the original high voltage brushless motor is maintained or replaced due to damage to components or other causes that may not be working properly. The maintenance time refers to the recorded time when the initial high-voltage brushless motor is maintained. Life expectancy refers to a predicted value of the initial high voltage brushless motor life under normal operating conditions. The monitoring frequency is the frequency of monitoring the initial high-voltage brushless motor.

Exemplary, life expectancy is 20, presetThe value of (2) is 1, and the lower limit value of the first maintenance period is 2, the upper limit value of the first maintenance period is: 4, obtaining a first overhaul period of time as follows: 2 to 4, taking the upper limit value of the first maintenance time period as the lower limit value of the second first maintenance time period, namely taking 4 as the lower limit value of the second first maintenance time period, and calculating the upper limit value of the second first maintenance time period as 8 to obtain the second first maintenance time period as follows: 4 to 8, the third first overhaul period is: 8 to 16, wherein the calculated upper limit value by using 16 is 32, namely, the calculated upper limit value is more than or equal to the expected life, and taking 32 as a target upper limit value, obtaining a fourth first maintenance time period as follows: 16 to 32.

It will be appreciated that in general, the probability of failure of a high voltage brushless motor increases as the period of time that the high voltage brushless motor is used increases. However, since the newly used high-voltage brushless motor may have a higher failure rate due to running-in, installation errors and the like, when the high-voltage brushless motor is monitored, the life expectancy is divided into M first maintenance time periods, so that the method is more suitable for the actual use condition of the high-voltage brushless motor, and one or more monitoring frequencies are acquired according to the divided M first maintenance time periods, and the method can reduce the energy consumption generated by monitoring the high-voltage brushless motor under the condition of meeting the monitoring of the high-voltage brushless motor.

It should be explained that the acquiring one or more monitoring frequencies based on the M first overhaul periods includes:

；

Illustratively, there are 4 first service periods, respectively: the first overhaul period is: 2 to 4, the second first overhaul period is: 4 to 8, the third first overhaul period is: 8 to 16 and a fourth first overhaul period of time are: 16 to 32, wherein the historical overhaul data set includes 500 historical data in total, and 50 historical data are located in a first overhaul period, the overhaul time corresponding to 20 historical data in the partition data set … … formed by 50 historical data located in the first overhaul period is greater than 32, and no historical data exist in a second first overhaul period, and the historical overhaul data set is obtained in total: 3 partitioned data sets, and the 3 partitioned data sets collectively comprise: 480 historical data.

It should be understood that, by means of the preset coefficient, the fault rate has different duty ratios in the process of obtaining the reference maintenance value in different time periods, and by means of the preset condition, the problem of inaccurate obtaining of the reference maintenance value caused by accidental factors can be eliminated. Furthermore, different monitoring frequencies can be planned in different time periods, so that the problems that monitoring is not timely or monitoring resource waste is caused due to the fact that the monitoring frequency is set too fast or too slow are solved.

Exemplary, it is proposed that when the absolute difference between the expected lifetime and the average of the service times corresponding to the historical data in the divided dataset is 0.9 or less, andWhen the value of (2) is 0.05 or more,The value of the water-based paint is 0.9,The value is 0.1. In general, in this case, a certain relationship cannot be considered between the inspection time and the probability of occurrence of a fault, and if the predetermined condition is satisfied at the same time, it is considered that such a high-voltage brushless motor has a design defect, so that the possibility of occurrence of a fault in the high-voltage brushless motor due to an accidental factor cannot be eliminated. It is intended that when the absolute difference between the expected life and the average value of the service time corresponding to the historical data in the divided dataset is 0.1 or less, andWhen the value of (2) is 0.05 or more,The value of the water-based paint is 0.1,The value is 0.9.

Further, by setting different conditions and different coefficients, the method aims to integrate two factors of maintenance time and failure probability, so that the division of the divided data set is realized again, the accuracy of the obtained monitoring frequency is improved, and the problem of resource waste caused by unreasonable setting of the monitoring frequency is solved.

It is understood that the acquiring one or more monitoring frequencies based on the reference service value set includes:

Illustratively, assuming that the largest and smallest reference service values in the set of reference service values lie between 0 and 1, the one or more reference service range segments are: 0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8 and 0.8 to 1, wherein the reference overhaul value set comprises 10 reference overhaul values in total, 3 reference overhaul values are positioned between 0.8 and 1, and a reference overhaul data set is formed by divided data sets corresponding to the 3 reference overhaul values positioned between 0.8 and 1, and the other reference overhaul values can achieve the same action and effect and are not described herein. The 3 reference overhaul values corresponding to the one reference overhaul data set correspond to a first overhaul time period of 2 to 4, a first overhaul time period of 8 to 16 and a first overhaul time period of 16 to 32 respectively, the divided data sets corresponding to the reference overhaul values are identified through the first overhaul time period, the monitoring frequency of the reference overhaul data set is obtained, the high-voltage brushless motor is monitored by using the monitoring frequency in the first overhaul time period of 2 to 4, the first overhaul time period of 8 to 16 and the first overhaul time period of 16 to 32, the probability of the occurrence of faults of the high-voltage brushless motor in the first overhaul time period can be determined, and the probability value is related to the probability of the occurrence of faults. Furthermore, through obtaining different monitoring frequencies in different first maintenance time periods, not only can satisfy the demand of monitoring high-voltage brushless motor, but also can reduce the problem of resource waste caused by monitoring through reasonable monitoring frequency. The monitoring frequency is the frequency of monitoring the high-voltage brushless motor.

S4, confirming and receiving a motor installation instruction from the motor installation unit, and confirming one or more redundant installation positions and first installation positions by utilizing the motor installation instruction and one or more monitoring frequencies, wherein the redundant installation positions refer to the installation positions of the redundant motors, and the one or more redundant installation positions and the first installation positions corresponding to the one or more redundant installation positions form a second installation position together.

It is understood that the motor installation instruction is an instruction issued by a person who performs installation on the motor. For example: xiao Li as motor installers, a plurality of different high voltage brushless motors are now installed into a pre-constructed mechanism or appliance or system, and thus, a motor installation command is issued by xiao Li, and it is confirmed which high voltage brushless motor should be installed at each position to be installed according to the motor installation command. The redundant mounting position refers to a position for mounting the spare high-voltage brushless motor corresponding to the first mounting position. The first mounting position refers to a position reserved for the high-voltage brushless motor when the implementation mechanism is operating normally. The difference between the redundant installation position and the first installation position is that the redundant installation position is an unnecessary installation position, so that when the high-voltage brushless motor of a certain mechanism in the first installation position is damaged, the high-voltage brushless motor installed in the redundant installation position can be started, the mechanism can be ensured to normally operate, the reserved position is reserved, and the operation requirement of the high-voltage brushless motor can be met at the redundant installation position. The high-voltage brushless motors mounted at the same second mounting position are the same high-voltage brushless motor. Optionally, one or more redundant installation positions may be preset according to the monitoring frequency, and the same effect can be achieved by adopting other technologies, which are not described herein. For example: the first second installation position is monitored at the frequency of 2 times per second, and the second installation position is monitored at the frequency of 1 time per second, so that the number of redundant installation positions corresponding to the first second installation position is larger than that of redundant installation positions corresponding to the second installation position, and the operation of the whole machine can be maintained by utilizing other high-voltage brushless motors in the first second installation position in time when the high-voltage brushless motors in the first second installation position are damaged.

In an exemplary embodiment, in a certain mechanism, a first type of high-voltage brushless motor is installed at a first installation position, one or more redundant installation positions are connected in parallel with the first installation position at the first installation position, a line controller capable of controlling line interruption or opening is pre-built in a line where each of the redundant installation positions and the first installation position is located, and each of the redundant positions is provided with the same type of high-voltage brushless motor. When the abnormality of the high-voltage brushless motor at the first mounting position is confirmed according to the monitoring frequency, the high-voltage brushless motor at the first mounting position can be interrupted by the line controller, and the high-voltage brushless motor at the redundant mounting position can be started so as to maintain the normal operation of the mechanism.

S5, after confirming that the initial high-voltage brushless motor is in a normal mechanical state, after performing installation operation on the initial high-voltage brushless motor by using a second installation position, starting the initial high-voltage brushless motor installed at a first installation position, and acquiring monitoring parameters based on monitoring frequency corresponding to the second installation position, wherein the monitoring parameters comprise monitoring temperature, monitoring voltage and monitoring current, and after confirming that the initial high-voltage brushless motor installed at the first installation position is in an abnormal working state by using the monitoring parameters.

It is understood that performing the mounting operation on the high-voltage brushless motor with the second mounting position refers to an operation of normally mounting the corresponding high-voltage brushless motor in the mechanism or the instrument according to the second mounting position.

It should be noted that the confirmation of the initial high-voltage brushless motor being in the normal mechanical state includes:

；

It is understood that the load torque is a torque set for testing the high-voltage brushless motor, and the motor rotation speed is a rotation speed that can be generated by the high-voltage brushless motor. The damping coefficient is used for expressing the resistance of the rotor of the high-voltage brushless motor when the rotor is acted by external force, the larger the value of the damping coefficient is, the faster the energy loss rate is, and the smaller the value of the damping coefficient is, the slower the energy loss rate is. The purpose of presetting the coefficients in the calculation formula is: the electromagnetic torque generated by the initial high-voltage brushless motor is reduced when conditions for testing the initial high-voltage brushless motor such as rated current and rated voltage are the same due to the different types of the initial high-voltage brushless motor. Electromagnetic torque is the torque produced by an initial high voltage brushless motor under certain conditions.

It should be explained that the obtaining the extracted estimated coefficient of the initial high-voltage brushless motor includes:

；

It should be noted that, alternatively, a plurality of reference electromagnetic torque sets may be measured from the first initial high-voltage brushless motor collectively by a preset number of measurements under the same conditions, and the reference electromagnetic torque set may be formed from the plurality of reference electromagnetic torque sets. The set of reference electromagnetic torques refers to a set of reference electromagnetic torques measured by the first initial set of high voltage brushless motors. For example: the first initial high-voltage brushless motors are in total 5 first initial high-voltage brushless motors, the measurement times are 3 times, the energizing operation is carried out on all the 5 first initial high-voltage brushless motors under the same condition, the reference electromagnetic torques of the 5 first initial high-voltage brushless motors are measured under the same time, 3 reference electromagnetic torque groups are measured in total, each reference electromagnetic torque group contains 5 reference electromagnetic torques, and the reference electromagnetic torque groups are formed by the 3 reference electromagnetic torque groups.

In an exemplary embodiment, the rated current and the rated voltage of the first type of initial high-voltage brushless motor are the same as the rated current and the rated voltage of the second type of initial high-voltage brushless motor, and the heat dissipation performance of the materials adopted by the first type of initial high-voltage brushless motor and the second type of initial high-voltage brushless motor is different, so that the temperature of the first type of initial high-voltage brushless motor in use is lower than that of the second type of initial high-voltage brushless motor, and further, the actual current in the first type of initial high-voltage brushless motor is higher than that in the second type of initial high-voltage brushless motor, and therefore, the electromagnetic torque of the first type of initial high-voltage brushless motor in the actual test is higher than that of the second type of initial high-voltage brushless motor. Therefore, the accuracy of electromagnetic torque calculation can be improved through the pre-estimated coefficient.

Further, the determining that the initial high-voltage brushless motor is in a normal mechanical state based on the electromagnetic torque and the load torque includes:

comparing the reference torque with a preset torque threshold;

It should be noted that the normal mechanical state refers to an operation state in which the high-voltage brushless motor is capable of generating a normal electromagnetic torque under a predetermined operation condition. For example: at rated voltage, rated current and rated power, the same electromagnetic torque as the rated torque is generated by the high-voltage brushless motor. The abnormal mechanical state refers to an operating state in which the high-voltage brushless motor cannot generate normal electromagnetic torque under a predetermined operating condition. Damage to components in the high voltage brushless motor or other factors may cause the reference torque to be greater than the torque threshold. Therefore, the problem of the high-voltage brushless motor fault caused by the mechanical fault can be eliminated through the comparison of the reference torque and the torque threshold value, and the accuracy of monitoring the high-voltage brushless motor is improved.

It should be appreciated that the determining, by using the monitoring parameter, that the initial high voltage brushless motor mounted at the first mounting position is in the abnormal operation state includes:

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It should be noted that, the monitored temperature refers to the temperature of the operating high-voltage brushless motor, the monitored voltage refers to the voltage of the operating high-voltage brushless motor, and the monitored current refers to the current of the operating high-voltage brushless motor.

Further, the determining that the initial high-voltage brushless motor mounted at the first mounting position is in the abnormal operation state based on the operation heat includes:

Comparing the working heat with a preset heat threshold;

It is understood that the abnormal operation state refers to an operation state in which the initial high-voltage brushless motor generates an abnormality due to the monitored heat or the monitored current or the monitored voltage in the actual operation, and the operation state shows a result that the operation heat is greater than the heat threshold. The normal working state is opposite to the definition of the abnormal working state, and will not be described herein. For example: in the monitoring parameters acquired by a certain monitoring frequency, the initial high-voltage brushless motor is disconnected, so that the monitoring voltage is 0, and the obtained working heat is larger than a heat threshold.

And S6, confirming that the initial high-voltage brushless motor corresponds to one or more redundant motors installed in a second installation position based on the motor adjusting unit, obtaining one or more target motors, and controlling the high-voltage brushless motor based on the motor replacing unit and the one or more target motors.

It should be noted that the redundant motor means a high-voltage brushless motor mounted at a redundant mounting position. The target motor is a redundant motor mounted at a redundant mounting position corresponding to the first mounting position.

In an exemplary embodiment, after the initial high-voltage brushless motor installed at the first installation position is in an abnormal operation state, the motor replacement unit is used to stop the initial high-voltage brushless motor, and a corresponding target motor is started to take over the operation of the initial high-voltage brushless motor, so that the stable operation of the whole mechanism or the instrument is maintained, and the control of the high-voltage brushless motor is completed.

Example 2:

Fig. 2 is a schematic structural diagram of an electronic device for implementing a high-voltage brushless-based power electronic control method according to an embodiment of the present invention.

The electronic device 1 may comprise a processor 10, a memory 11, a bus 12 and a communication interface 13, and may further comprise a computer program stored in the memory 11 and executable on the processor 10, such as a high voltage brushless based power electronic control program.

The memory 11 includes at least one type of readable storage medium, including flash memory, a mobile hard disk, a multimedia card, a card memory (e.g., SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. The memory 11 may in some embodiments be an internal storage unit of the electronic device 1, such as a removable hard disk of the electronic device 1. The memory 11 may in other embodiments also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a smart memory card (SMARTMEDIACARD, SMC), a secure digital (SecureDigital, SD) card, a flash memory card (FLASHCARD) or the like, which are provided on the electronic device 1. Further, the memory 11 may also include both an internal storage unit and an external storage device of the electronic device 1. The memory 11 may be used not only for storing application software installed in the electronic device 1 and various types of data, such as codes of electric control programs based on high-voltage brushless power, but also for temporarily storing data that has been output or is to be output.

The processor 10 may be comprised of integrated circuits in some embodiments, for example, a single packaged integrated circuit, or may be comprised of multiple integrated circuits packaged with the same or different functions, including one or more central processing units (CentralProcessingunit, CPU), microprocessors, digital processing chips, graphics processors, various control chips, and the like. The processor 10 is a control core (ControlUnit) of the electronic device, connects the various components of the entire electronic device using various interfaces and lines, and executes various functions of the electronic device 1 and processes data by running or executing programs or modules stored in the memory 11 (e.g., a high-voltage brushless-based power electronic control program, etc.), and calling data stored in the memory 11.

The bus may be a peripheral component interconnect standard (peripheralcomponentinterconnect, PCI) bus, or an extended industry standard architecture (extendedindustrystandardarchitecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. The bus is arranged to enable a connection communication between the memory 11 and at least one processor 10 etc.

Fig. 2 shows only an electronic device with components, it being understood by a person skilled in the art that the structure shown in fig. 2 does not constitute a limitation of the electronic device 1, and may comprise fewer or more components than shown, or may combine certain components, or may be arranged in different components.

For example, although not shown, the electronic device 1 may further include a power source (such as a battery) for supplying power to each component, and preferably, the power source may be logically connected to the at least one processor 10 through a power management device, so that functions of charge management, discharge management, power consumption management, and the like are implemented through the power management device. The power supply may also include one or more of any of a direct current or alternating current power supply, recharging device, power failure detection circuit, power converter or inverter, power status indicator, etc. The electronic device 1 may further include various sensors, bluetooth modules, wi-Fi modules, etc., which will not be described herein.

Further, the electronic device 1 may also comprise a network interface, optionally the network interface may comprise a wired interface and/or a wireless interface (e.g. WI-FI interface, bluetooth interface, etc.), typically used for establishing a communication connection between the electronic device 1 and other electronic devices.

The electronic device 1 may optionally further comprise a user interface, which may be a Display, an input unit, such as a Keyboard (Keyboard), or a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (organic light-emitting diode) touch, or the like. The display may also be referred to as a display screen or display unit, as appropriate, for displaying information processed in the electronic device 1 and for displaying a visual user interface.

It should be understood that the embodiments described are for illustrative purposes only and are not limited to this configuration in the scope of the patent application.

The high voltage brushless based power electronic control program stored in the memory 11 of the electronic device 1 is a combination of instructions that, when executed in the processor 10, can implement:

Specifically, the specific implementation method of the above instruction by the processor 10 may refer to descriptions of related steps in the corresponding embodiments of fig. 1 to 2, which are not repeated herein.

Further, the modules/units integrated in the electronic device 1 may be stored in a computer readable storage medium if implemented in the form of software functional units and sold or used as separate products. The computer readable storage medium may be volatile or nonvolatile. For example, the computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a Read-only memory (ROM).

The present invention also provides a computer readable storage medium storing a computer program which, when executed by a processor of an electronic device, can implement:

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A high voltage brushless-based electric power control method, the method comprising:

2. The high voltage brushless-based power electronic control method according to claim 1, wherein the acquiring one or more initial high voltage brushless motors based on the plurality of different high voltage brushless motors comprises:

3. The high voltage brushless-based power electronic control method according to claim 2, wherein the acquiring one or more monitoring frequencies from the extracted initial high voltage brushless motor comprises:

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4. The high voltage brushless-based power electronic control method according to claim 3, wherein the acquiring one or more monitoring frequencies based on the M first overhaul periods includes:

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5. The high voltage brushless-based power electronic control method according to claim 4, wherein the acquiring one or more monitoring frequencies based on the reference overhaul value set comprises:

6. The high voltage brushless-based power electronic control method according to claim 2, wherein the confirming that the initial high voltage brushless motor is in a normal mechanical state comprises:

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7. The method for high voltage brushless-based power electronic control according to claim 6, wherein the obtaining the extracted estimated coefficient of the initial high voltage brushless motor comprises:

；

8. The high voltage brushless-based power electronic control method according to claim 7, wherein the confirming that the initial high voltage brushless motor is in a normal mechanical state based on the electromagnetic torque and the load torque comprises:

comparing the reference torque with a preset torque threshold;

9. The method of claim 2, wherein the determining, using the monitored parameter, that the initial high voltage brushless motor installed at the first installation location is in an abnormal operation state comprises:

；

10. The high voltage brushless-based power electronic control method according to claim 9, wherein the confirming that the initial high voltage brushless motor mounted at the first mounting position is in the abnormal operation state based on the operation heat comprises:

Comparing the working heat with a preset heat threshold;