Detailed Description
In order that the manner in which the application may be better understood, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which case the application is illustrated in the appended drawings. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and in the drawings are used for distinguishing between different objects and not for limiting a particular order.
According to one aspect of the application, a core simulator is provided. FIG. 1 is a schematic diagram of a core simulator provided by the present application, as shown in FIG. 1, comprising:
A signal converter module 11 for receiving a physical signal in the first core control system, converting the physical signal in the first core control system into a voltage signal having a predetermined amplitude, and receiving a characteristic signal output from the integrated circuit module 13, converting the characteristic signal into a target physical signal in the first core control system;
The signal converter module 11 described above, as a controlled source, comprises a plurality of signal converters, wherein the signal converters consist of a plurality of types of controlled sources. For example, the signal converter may be composed of a current controlled voltage source, a current controlled current source, a voltage controlled voltage source. The signal converter module 11 can be connected with various signals, and has rich signal connection types, high adaptation capability and high real physical parameter characterization capability. The predetermined amplitude can be flexibly set according to the requirements of application scenes.
The first core control system is used as a verification object and comprises, but is not limited to, a power regulating system, a rod driving system, a rod control system, a rod position system and a nuclear testing system.
It should be noted that the physical signals corresponding to the power adjustment system include, but are not limited to, an initial power signal and a speed regulation signal, and the physical signals corresponding to the rod driving system include, but are not limited to, a rod position signal. The target physical signals include, but are not limited to, normalized power signals and governor signals.
The integrated circuit module 13 is connected with the signal converter module 11 and is used for receiving the voltage signal and a given signal in a preset second reactor core control system and calculating the voltage signal and the given signal in real time based on a pre-burnt reactor core model to obtain a characteristic signal, wherein the reactor core model is obtained by using a hardware digital circuit mapping based on a physical model of a reactor core;
The characteristic signal refers to a signal used in signal processing to describe the characteristics of the signal. It may be some transformation or extraction of the original signal to represent some specific property or feature of the signal. For example, the characteristic signal includes, but is not limited to, a normalized power signal.
The upper computer 15 is connected with the integrated circuit module 13 and is used for monitoring the behavior characteristics and the working condition signals of the reactor core model and re-expressing the physical signals.
The upper computer comprises a computer, and the computer comprises a special design platform for power electronics and a built reactor core model. The computer completes the hardware representation of the reactor core and the conversion of the reactor core interface signal through the communication interface.
The behavior of the core model is characterized by physical processes and behavior inside the nuclear reactor core. The behavioral characteristics of the core model may be obtained by monitoring the operating condition signals. The working condition signals are various parameters and state signals in the operation process of the reactor, such as temperature, pressure, flow, power and the like. Through monitoring and analyzing the working condition signals, the behavior characteristics of the reactor core model can be known, including characteristics in aspects of thermal engineering, dynamics, nuclear physics and the like.
The physical signals are then expressed as processing and converting the original physical signals to better express the characteristics and information of the signals. The physical signal re-expression may be implemented by signal processing techniques such as filtering, noise reduction, feature extraction, etc. By re-expressing the physical signal, useful information in the signal can be extracted, noise and interference can be removed, and the signal can be better understood and analyzed.
In the monitoring of the core model, physical signal re-expression may play an important role. Through re-expressing the working condition signals, the characteristic signals related to the behavior characteristics of the reactor core can be extracted, so that the state and the performance of the reactor core can be better monitored and analyzed. The characteristic signals can be used for fault detection, abnormality identification, performance evaluation and the like, and support is provided for safe operation of the nuclear reactor.
The core simulator combines with the control method to realize the verification of the control characteristics of the system and the subsystem.
Optionally, the core simulator identifies the signal of the object selector of the integrated circuit module 13 during operation, completes the verification of the object by the system, and simultaneously completes the selection of the logical operation condition set and the signal validity characterization of the signal unit. The special power electronic verification platform of the upper computer is accessed to the integrated circuit module 13 and completes corresponding hardware mapping, and the state of the reactor core interface conversion signal is confirmed through the upper computer. After the state is correct, the start switch of the integrated circuit module 13 can be enabled to finish all time sequence expressions in the logic operation working condition set, and finally, the characteristic result expression is obtained.
Optionally, the core simulator can be used for realizing the function verification of the electrical and logic functions, performance verification and the like of a subsystem, a redundant system and a cascading type combined system, and can be used for carrying out repeated cycle verification through one-key reset of the integrated circuit module 13.
In the invention, the reactor core simulator uses the signal converter module to convert and access the system signal, and uses the reactor core model to calculate in real time for the reactor core, so that the system signal can directly face the engineering system, and further the technical effects of single signal type, poor access and poor signal physical parameter characterization capability, fuzzy control characteristic confirmatability, poor verification object expansibility and the like of the whole process design and realization of the related field control system in the related technology are solved, and the rationality, the relativity, the verifiability, the expansibility and the electrical parameter characterization capability of the control system design are improved.
In addition, the reactor core simulator is completely calculated in real time by the modeled hardware, through verification object setting, according to system logic operation and by combining the system and subsystem control requirements, the integrated circuit module 13 and specific signal time sequence realize real-time signal calculation and logic verification of the whole system and the subsystem in a real-time mode, thereby achieving the purpose of design optimization and verification of system functions and performances. The upper computer is combined with a special power electronic design platform, and feature signal extraction is realized through a communication interface, so that the state data conversion and testability are improved, the digital characterization capability of the system is improved, and the effectiveness and testability of the design are accelerated.
When the power regulating system is connected, the power regulating system is connected with the integrated circuit module 13 through the signal converter, the integrated circuit module 13 completes normalized power output according to the initial power signal and the rod position signal of the rod driving system of the integrated circuit module 13, and is connected with the power feedback input end of the power regulating system through the signal converter, so that real-time simulation of the power regulating system is completed. When the rod driving system is connected, the rod position signal of the rod driving system is connected to the integrated circuit module 13 through the signal converter, the integrated circuit module 13 completes normalized power output according to the rod position signal and an initial power signal of a power regulation system of the integrated circuit module 13, and a speed regulation signal is calculated through the power regulation system, so that real-time simulation of the rod driving system is completed.
Optionally, the signal converter module 11 is used for physical signal access and conversion of the rod position, the power setting, the speed regulation signal and the like in the power regulation system and the rod driving system, and uniformly converts each current and voltage signal into a voltage signal with a preset amplitude. The integrated circuit module 13 is used for accessing the signals of the signal converter and completing the output of the characteristic signals according to the fully-hardware reactor core model. The upper computer 15 is used for monitoring the behavior characteristics and the working condition signals of the reactor core model and re-expressing the physical signals.
In an alternative embodiment, the integrated circuit module 13 includes an initial power signal unit for setting an initial power signal in the power conditioning system when the second core control system is the power conditioning system.
The initial power signal unit is used for setting the initial power signal of the reactor core.
In an alternative embodiment, the integrated circuit module 13 includes a timing signal unit for integrating the timing signal to generate the rod position signal when the physical signal in the first core control system includes the timing signal.
For example, the speed regulation signal unit is used for integrating the speed regulation signal and forming a rod position signal and participating in normalized power output of the reactor core, wherein the normalized power output is a power normalized output value calculated in real time, is the power output quantity of the whole system and participates in real-time feedback calculation of the system.
In an alternative embodiment, the integrated circuit module 13 includes a normalized power output unit, configured to output a normalized power signal, where the normalized power signal is used as a target physical signal of the power adjustment system to be returned to the power adjustment system when the first core control system is the power adjustment system, and the normalized power signal is used as an input to calculate the speed regulation signal when the first core control system is the rod driving system.
For example, the stick bit signal of the integrated circuit module 13 is used as input by initializing the power signal, performing calculation by the hardware digital circuit mapping, and realizing normalized power signal output.
In an alternative embodiment, the integrated circuit module 13 includes an object selector for selecting any one of the power conditioning system and the rod drive system as the first core control system, wherein the unselected system is the second core control system.
For example, the object selector is used to select the verified object, and the verification power adjustment system or the rod driving system can be selected according to the actual verification object.
In an alternative embodiment, the integrated circuit module 13 includes a start switch for controlling the integrated circuit module 13 to start and run real-time computation after the initialization state of the integrated circuit module 13 is confirmed.
For example, the integrated circuit module 13 selects the core model and the signal flow direction according to the object selector, and the start switch is used for real-time calculation start and operation of the integrated circuit module 13 after all initial states are confirmed.
In an alternative embodiment, the integrated circuit module 13 includes a state reset unit for resetting an initialization state of the integrated circuit module 13.
For example, the state reset unit may reset the integrated circuit module 13 state to enable multiple independent real-time computations.
In an alternative embodiment the integrated circuit module 13 comprises a signal generating unit for converting the normalized power signal into the characteristic signal using a conversion relation of amplitude versus frequency.
For example, the signal generating unit is used for expressing the characteristic signal by the normalized power output, completing the corresponding conversion relation between the amplitude and the frequency and outputting the corresponding conversion relation through the port.
In an alternative embodiment, the integrated circuit module 13 includes a logic operation condition set unit for perturbing the normalized power signal and/or the rod bit signal based on logic operation in the logic operation condition set.
The set of logical operating conditions may be used to describe different states of operation, modes of operation, or conditions of operation of the system. A logical operating regime set typically consists of a series of logical operations and conditions, which may be logical operations, judgment statements, trigger conditions, etc. By combining and judging these operations and conditions, classification and control of the working conditions can be achieved. For example, the logic operation condition set unit may complete the disturbance of the power and the rod bit signal, and may complete the logic operation selection as required.
In an alternative embodiment, the integrated circuit module 13 includes a core hardware mapping unit for mapping the operating state of the integrated circuit module 13 to a hardware state.
For example, the core hardware mapping unit may communicate the state of the on-chip real-time unit to complete the expression of the hardware state. The core hardware mapping unit maintains a core model. In the implementation process, the core model is burned into the integrated circuit module 13 through the upper computer 15 to form a core hardware mapping unit.
In an alternative embodiment, the integrated circuit module 13 includes a virtual signal interface unit for recovering the physical signals in the first core control system.
For example, the virtual signal interface unit performs restoration of the physical signal for expression of the internal real physical signal. In addition, the virtual signal interface unit is also used for receiving or outputting corresponding signals.
Alternative embodiments of the present application are described in detail below.
Fig. 2 is a schematic diagram of the reactor core simulator provided by the application when being connected to a power adjustment system, as shown in fig. 2, if the verification object is the power adjustment system, the integrated circuit module 13 is connected to an initial power signal and a speed regulation signal of the power adjustment system. The physical attribute representation of the signals is completed by the signal converter module 11 and the integrated circuit module 13, the integrated circuit module 13 completes normalized power signal output according to the core model in the core hardware mapping unit, and the virtual signal interface unit of the integrated circuit module 13 and the signal converter output to power feedback to complete system access integrity. The verification purpose is that the upper computer 15 realizes characteristic signal deployment and operation preparation through a logic operation working condition set, and meanwhile, the upper computer 15 monitors characteristic signals through a special platform software tool.
If the access is a power regulation system and the core simulator has an operating state, the integrated circuit module 13 monitors the initial power setting and calculates the power feedback value of the normalized power signal in real time by the core hardware mapping unit according to the value of the speed regulation signal.
If the initial power signal is subjected to transient change setting after the calculated power feedback enters a steady state, the given disturbance of the power can be realized, if the speed regulating signal is changed, the dynamic disturbance is performed under real-time speed regulation, and the disturbance results can be represented by an upper computer.
Fig. 3 is a schematic diagram of the core simulator provided by the present application when connected to a rod driving system, as shown in fig. 3, if the verification object is the rod driving system, the integrated circuit module 13 is connected to a rod position signal of the rod driving system. The physical attribute representation of the signals is completed by the signal converter module 11 and the integrated circuit module 13, the integrated circuit module 13 determines an internal initial power signal according to a working condition set, the normalized power signal output is completed according to a reactor core model in a reactor core hardware mapping unit, and the normalized power signal is outputted to a speed regulation signal by a virtual signal interface unit and the signal converter of the integrated circuit module 13, so that the signal access integrity of the system is completed. The verification purpose is that the upper computer 15 realizes characteristic signal deployment and operation preparation through a logic operation working condition set, and meanwhile, the upper computer 15 monitors characteristic signals through a special platform software tool.
If the access is a rod driving system and the reactor core simulator has an operating state, the integrated circuit module 13 monitors the rod position signal setting and calculates the power feedback value of the normalized power signal in real time by the reactor core hardware mapping unit according to the value of the initial power signal. The speed regulation signal is calculated and output through the integrated circuit module 13 and is output to the rod driving system through the signal converter.
If the rod position signal enters a steady state after the calculated power feedback, the rod position can be given by setting transient change, and the disturbance results can be represented on an upper computer.
Fig. 4 is a schematic diagram of an integrated circuit module provided in the present application, and as shown in fig. 4, the integrated circuit module 13 includes a communication interface, an initial power signal unit, a speed regulation signal unit, a normalized power output unit, an object selector, a start switch, a state reset unit, a signal generation unit, a logic operation condition set unit, a core hardware mapping unit, and a virtual signal interface unit. The system comprises an initial power signal unit, a speed regulation signal unit, a target selector, a hardware mapping unit, a core mapping unit and a hardware mapping unit, wherein the initial power signal unit is used for setting an initial power signal of a core, the speed regulation signal unit is used for integrating and forming a rod position signal and participating in normalized power signal output of the core, the normalized power signal output is a power normalized output value calculated in real time, the power normalized output value is a power output quantity of the whole system and participates in real-time feedback calculation of the system, the target selector is used for selecting a verification target, a verification power regulation system or a rod driving system can be selected according to the requirement of the actual verification target, the integrated circuit module 13 is used for selecting a core model and a signal flow direction according to the target selector, a starting switch is used for confirming all initial states, real-time calculation of the integrated circuit module 13 is started and operated, the state resetting unit is used for resetting all real-time on-chip unit states to realize independent real-time calculation for multiple times, the signal generation unit is used for expressing normalized power output as a characteristic signal, such as the corresponding conversion relation between amplitude and frequency is completed through a port, the logic operation collection unit is used for completing disturbance of the power and the logic operation signal, the logic operation condition selection can be completed according to the logic operation selection. And the virtual signal interface unit is used for finishing the restoration of the physical signals and expressing the internal real physical signals. The communication interface is used for data communication between the integrated circuit module 13 and the host computer 15.
Alternatively, the core hardware mapping unit and the virtual signal interface unit may be combined into one unit.
It should be noted that, in the present invention, the core simulator has the following advantages:
(1) The full-type signal converter is adopted, and is combined with the internal integrated circuit module 13, so that the signal access variety is rich, and the physical parameter expression is complete and accurate. The parameter characterization of control physical signals in the nuclear field can be realized, and the subsystem has strong access capability.
(2) By adopting verification object selection, the design and verification of the whole development process subsystem in the nuclear field can be realized.
(3) By adopting verification object selection and function setting of the integrated circuit module 13, different subsystem theoretical calculation and actual verification comparison can be realized on the reactor core simulator through conversion of the integrated circuit module 13 and an access system object.
(4) Dynamic disturbance of the access system characteristic signal can be realized on the simulator, and the disturbance type is complete and accurate.
(5) The combination of the multi-configuration interface and the flexible functional unit design of the integrated circuit module 13 can realize the verification of the characteristic behaviors of multi-rod bits, redundant subsystems and the like. The interface may be used to access or output signals of the typical type that include all of the available types in the field of off-core control.
(6) By combining the multi-configuration interface and the flexible functional unit design combination of the integrated circuit module 13, the cascade verification of the subsystem can be realized, and the logic and electrical functions of the whole control system can be verified.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the modules may be divided into a logic function, and there may be other division manners in actual implementation, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with respect to each other may be through some interface, module or indirect coupling or communication connection of modules, electrical or otherwise.
In addition, each functional module in each embodiment of the present application may be integrated into one processing module, or each module may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.
The integrated modules, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution created by the present application, or the part contributing to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The storage medium includes a U disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, etc. which can store the program code.
The foregoing is merely illustrative of the preferred embodiments of this application, and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the application, and such variations and modifications are to be regarded as being within the scope of the application.