CN112817297A - Testing device and testing method for converter valve control device - Google Patents
Testing device and testing method for converter valve control device Download PDFInfo
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- CN112817297A CN112817297A CN202110007419.XA CN202110007419A CN112817297A CN 112817297 A CN112817297 A CN 112817297A CN 202110007419 A CN202110007419 A CN 202110007419A CN 112817297 A CN112817297 A CN 112817297A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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Abstract
一种换流阀阀控装置的测试装置及测试方法，测试装置包括：至少一个测试板卡，用于根据触发命令作出相应的模拟响应；根据回检信号生成回检状态，根据回检状态生成相应的回检信息，并通过换流阀阀控装置将回检信息回传至监控设备；显示装置显示模拟响应及回检状态；电源模块为测试板卡供电。本发明测试板卡内置至少一个中控板程序，中控板程序对触发命令解析后，测试板卡作出相应的模拟响应，真实地反映出阀控装置实际的软硬件运行环境，从而实现对换流阀阀控装置的触发程序测试；测试板卡基于回检信号生成相应的回检状态，并经由需要测试的中控板程序得到回检信息，并将回检信息回传至换流阀阀控装置，从而实现对换流阀阀控装置的回检程序测试。
A test device and a test method for a valve control device of a converter valve, the test device comprises: at least one test board for making a corresponding simulated response according to a trigger command; The corresponding back-check information is sent back to the monitoring equipment through the valve control device of the converter valve; the display device displays the simulated response and the back-check status; the power module supplies power to the test board. The test board of the present invention has at least one central control board program built in. After the central control board program parses the trigger command, the test board makes a corresponding simulation response, which truly reflects the actual software and hardware operating environment of the valve control device, thereby realizing the exchange of Trigger program test of the valve control device of the flow valve; the test board generates the corresponding check state based on the check signal, and obtains the check information through the program of the central control board to be tested, and transmits the check information back to the converter valve. control device, so as to realize the back-check program test of the valve control device of the converter valve.
Description
Technical Field
The invention relates to the technical field of power electronics, in particular to a testing device and a testing method for a converter valve control device.
Background
With the wide popularization and application of power electronic equipment in a power system, the stable operation of the converter valve and the valve control device thereof is related to the reliability and the utilization rate of the whole power electronic equipment. In the stage of programming a valve control program (a real converter valve cannot be built), and when the valve control program of the converter valve is tested, common testing methods comprise a simulation testing method and a software simulation testing method. The simulation test method is a pure digital simulation in a programming environment and does not need any ideal state under the participation of physical elements, and the software simulation test method is to write a converter valve module test program, burn the test program into a central control board for simulation test and observe the test program on a monitoring interface. However, the two testing methods have large limitations, cannot truly reflect the actual software and hardware operating environment of the valve control device, different projects need to compile different testing programs, the universality and the portability are poor, and the engineering and standardization requirements are difficult to meet.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the actual software and hardware operating environment of a valve control device cannot be truly reflected when a converter valve control program is tested in the prior art, so that the testing device and the testing method of the converter valve control device are provided.
In order to achieve the purpose, the invention provides the following technical scheme:
in a first aspect, an embodiment of the present invention provides a testing apparatus for a converter valve control apparatus, where the converter valve control apparatus is connected to a main control device and a monitoring device, respectively, and the testing apparatus includes: the system comprises at least one test board card, a power supply module and a display device, wherein at least one central control board program is arranged in each test board card and used for making corresponding simulation response according to a trigger command generated after a valve control device of the converter valve analyzes and modulates a received modulation wave and a control signal; the test board card is also used for generating a corresponding rechecking state according to a rechecking signal sent by the external controller, generating corresponding rechecking information according to the rechecking state, and transmitting the rechecking information back to the monitoring equipment through the valve control device of the converter valve; the display device is connected with the test board card and is used for displaying the simulation response and the return inspection state; the power module is used for supplying power for the test board card.
In one embodiment, the test board card is connected with the converter valve control device through at least one pair of an input optical head and an output optical head, the input optical head is connected with the converter valve control device through a trigger optical fiber, and the output optical head is connected with the converter valve control device through a return detection optical fiber.
In one embodiment, the test board includes: the device comprises a test control circuit, a return detection signal action circuit and at least one trigger command detection circuit, wherein the test control circuit is connected with a valve control device of the converter valve and used for analyzing a received trigger command to obtain at least one trigger command bit and sending the trigger command bit to the corresponding trigger command detection circuit in sequence; the trigger command detection circuit is connected with the test control circuit and used for simulating the converter valve module and making corresponding simulation response to the received trigger command bit; the return inspection signal action circuit is connected with the test control circuit and used for generating a corresponding return inspection state according to a return inspection signal sent by the external controller and sending the corresponding return inspection state to the test control circuit; and the test control circuit generates corresponding return inspection information according to the return inspection state and returns the return inspection information to the converter valve control device.
In one embodiment, the trigger command detection circuit includes: the device comprises a test resistor, a probe and an indicator light, wherein the test resistor is connected with the indicator light in parallel and then connected with a test control circuit and connected with a display device through the probe; the display device and the indicator light are used for displaying the circuit connection condition of the parallel circuit formed by the display device and the indicator light.
In one embodiment, the back detection signal action circuit comprises: the device comprises a return inspection channel selection switch, a rotary encoder and at least one key switch, wherein the return inspection channel selection switch is connected with a test control circuit and is used for selecting a return inspection optical fiber and a central control panel program which need to be tested; the first ends of the rotary encoder and the key switch are both connected with the test control circuit, and the second ends are both grounded; the rotary encoder is used for changing a voltage value and a current value according to the return detection signal; the switch state of the key switch is used for representing a fault zone bit.
In a second aspect, an embodiment of the present invention provides a testing method for a converter valve control device, where based on the testing device for a converter valve control device in the first aspect, the testing method includes: for each test board card, corresponding simulation response is made according to a trigger command generated after the received modulation wave and control signal are analyzed and modulated by the converter valve control device; or generating a corresponding rechecking state according to a rechecking signal sent by the external controller, generating corresponding rechecking information according to the rechecking state, and transmitting the rechecking information back to the monitoring equipment through the valve control device of the converter valve; a user judges whether the converter valve control device and the central control board program have faults or not by comparing the modulation wave, the control signal and the corresponding simulation response; or, judging whether the valve control device of the converter valve, the program of the central control panel and the return detection optical fiber have faults or not by comparing the return detection information displayed by the monitoring equipment with the corresponding return detection state.
In an embodiment, for each test board, a corresponding simulation response process is performed according to a trigger command generated after a valve control device of a converter valve analyzes and modulates a received modulation wave and a control signal, and the process includes: the converter valve control device analyzes and modulates the received modulation wave and control signal sent by the main control equipment to obtain at least one trigger command, and sends the trigger command to the corresponding test board card; for each test board card, a built-in test control circuit analyzes the trigger command to obtain at least one trigger command bit, and the trigger command bits are sequentially sent to a trigger command detection circuit; according to the trigger command bit, an indicator lamp arranged in the trigger command detection circuit is turned on or turned off, and a display device connected with the probe displays the circuit connection state of a parallel circuit formed by the probe and the indicator lamp.
In one embodiment, the process of generating a corresponding rechecking state according to a rechecking signal sent by an external controller, generating corresponding rechecking information according to the rechecking state, and transmitting the rechecking information back to the monitoring equipment through a valve control device of the converter valve comprises the following steps: according to a return detection signal sent by an external controller, a rotary encoder arranged in a return detection signal action circuit obtains a change voltage change value and a change current value through rotation, and sends the change voltage change value and the change current value to a test control circuit; the corresponding key switch simulates a fault zone bit by changing the switch state and sends the fault zone bit to the test control circuit; according to the return detection signal, the return detection channel selection switch selects at least one central control board program to be tested and the return detection optical fiber, and sends a selection result to the test control circuit; the test control circuit integrates and inputs the selection result, the voltage change value, the current change value, the voltage rated value, the current rated value and the fault zone bit into a central control panel program to be detected to obtain the return detection information, and the return detection information is sent to the monitoring equipment through the converter valve control device.
The technical scheme of the invention has the following advantages:
1. the invention provides a testing device and a testing method of a converter valve control device.A testing board card is internally provided with at least one central control board program, and the testing board card makes a corresponding simulation response after the central control board program analyzes a trigger command, so that the actual software and hardware operating environment of the valve control device is truly reflected, and the trigger program test of the converter valve control device is realized; the test board card generates a corresponding recheck state based on the recheck signal, obtains recheck information through a central control board program to be tested, and transmits the recheck information back to the converter valve control device, so that the recheck program test of the converter valve control device is realized.
2. According to the testing device and the testing method of the converter valve control device, the trigger command detection circuit makes a simulation response to the received trigger command bit, so that a simple circuit structure is utilized to replace a complex converter valve, and a trigger program can be tested; the return inspection channel selection switch selects a central control panel program to be tested and a return inspection optical fiber according to a return inspection signal, the test control circuit reads the rotation direction of the rotary encoder and a fault flag bit represented by the key switch, return inspection information is obtained according to a selection result, and the return inspection information is sent to the monitoring equipment through the converter valve control device, so that the return inspection program is tested.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a composition diagram of a specific example of a testing device of a converter valve control device according to an embodiment of the invention;
fig. 2 is a composition diagram of another specific example of the testing device of the converter valve control device provided by the embodiment of the invention;
fig. 3 is a composition diagram of a specific example of a test board card according to an embodiment of the present invention;
fig. 4 is a composition diagram of a specific example of a trigger command detection circuit according to an embodiment of the present invention;
FIG. 5 is a block diagram of a specific example of a return detection signal operation circuit according to an embodiment of the present invention;
FIG. 6 is a flowchart of a trigger test process provided by an embodiment of the present invention;
fig. 7 is a flowchart of a back detection test process according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment of the invention provides a testing device of a converter valve control device, which is applied to occasions needing simulation testing on programs in the valve control device, as shown in figure 1, the converter valve control device is respectively connected with a main control device and a monitoring device, and the testing device comprises: the device comprises at least one test board card 1, a power module 2 and a display device 3.
As shown in fig. 1, each test board card 1 is connected to a converter valve control device, at least one central control board program is built in each test board card 1, and each test board card 1 is configured to make a corresponding simulation response according to a trigger command generated after the converter valve control device analyzes and modulates a received modulation wave and a control signal.
As shown in fig. 1, a display device 3 according to an embodiment of the present invention is connected to a test board 1 and configured to display a simulation response and a return inspection state, and a power supply module 2 is configured to supply power to the test board 1, where the display device 3 includes an oscilloscope, a wave recorder, and the like.
Specifically, because the converter valve comprises a plurality of sub-modules, each sub-module comprises a plurality of switch devices, and in an actual working condition, the on-off state of one switch device comprises a central control board, in order to detect whether a program built in the central control board and a program built in a valve control device of the converter valve are correct, the embodiment of the invention provides a plurality of test board cards 1, one test board card 1 is used for simulating one sub-module, a plurality of central control board programs (including a trigger program and a return inspection program) are built in each test board card 1, and the number of the central control board programs is the same as the number of the switch devices of the sub-module simulated by the test board card 1.
The main control device sends modulation waves and control signals to the converter valve control device, when the converter valve control device receives the modulation waves and the control signals, the converter valve control device firstly sends the received return inspection information to the main control device, then analyzes and modulates the modulation waves and the control signals to obtain the trigger commands of all sub-modules, and sends the trigger commands to the corresponding test board 1, wherein one central control board corresponds to one path of trigger commands, so that the test board 1 receives at least one path of trigger commands.
The test board card 1 of the embodiment of the invention analyzes the trigger command to analyze a plurality of trigger command bits in a protocol, and sequentially sends the trigger command bits to a test area arranged in the test board card 1, the test area makes a corresponding simulation reaction on the trigger command bits, and a user can judge whether programs of a valve control device of the converter valve and a central control board are correct or not by comparing the simulation reaction with a corresponding modulation wave.
The test board card 1 of the embodiment of the invention is further used for generating a corresponding rechecking state according to a rechecking signal sent by the external controller, generating corresponding rechecking information according to the rechecking state, and transmitting the rechecking information back to the monitoring equipment through the valve control device of the converter valve.
Specifically, when the test board 1 does not receive the return detection signal, the test board 1 sends the electrical information rating of the corresponding sub-module and the simulated no-fault information of the central control board to the converter valve control device. When the test board card 1 receives the retest signal, the retest state is changed according to the retest signal, wherein the retest state is used for simulating the operation state of each submodule of the converter valve, and the operation state includes the submodule fault state besides the electrical information such as voltage and current. The test board card 1 inputs the return inspection state into the central control board program to be tested to obtain return inspection information, the return inspection information is sent to the converter valve control device, the converter valve control device sends the return inspection information to the monitoring equipment, and a user judges whether the central control board program and the converter valve control device program are correct or not by comparing the return inspection state displayed by the display device 3 with the return inspection information displayed by the monitoring equipment.
According to the testing device of the converter valve control device, at least one central control board program is arranged in the test board card, and after the central control board program analyzes the trigger command, the test board card makes a corresponding simulation response to truly reflect the actual software and hardware operating environment of the valve control device, so that the trigger program test of the converter valve control device is realized; the test board card generates a corresponding recheck state based on the recheck signal, obtains recheck information through a central control board program to be tested, and transmits the recheck information back to the converter valve control device, so that the recheck program test of the converter valve control device is realized.
In a specific embodiment, as shown in fig. 2, the test board 1 passes through at least one pair of an input optical head 4 and an output optical head 5, the input optical head is connected with the converter valve control device through a trigger optical fiber, and the output optical head is connected with the converter valve control device through a return optical fiber.
In an embodiment, as shown in fig. 3, the test board 1 includes: a test control circuit 11, a return detection signal action circuit 12 and at least one trigger command detection circuit 13.
As shown in fig. 3, the test control circuit 11 according to the embodiment of the present invention is connected to a converter valve control device, and is configured to analyze a received trigger command to obtain at least one trigger command bit, and send the trigger command bit to the corresponding trigger command detection circuit 13 in sequence, that is, the test control circuit 11 is embedded with at least one central control board program and receives at least one trigger command, and the test control circuit 11 analyzes each trigger command to obtain the trigger command bit of each trigger command, and sends the trigger command bit to the trigger command detection circuit 13 in sequence.
It should be noted that the test control circuit 11 according to the embodiment of the present invention may be a control circuit based on an FPGA logic chip, but is only exemplary and not limited thereto.
As shown in fig. 3, the trigger command detection circuit 13 according to the embodiment of the present invention is connected to the test control circuit 11, and is configured to simulate the converter valve module to make a corresponding simulated response to the received trigger command bit, that is, the trigger command detection circuit 13 is configured to simulate a switching device in a sub-module, so that the trigger command bit controls the electrical state of the trigger command detection circuit 13 to change, and makes a corresponding simulated response.
As shown in fig. 3, the review signal action circuit 12 according to the embodiment of the present invention is connected to the test control circuit 11, and is configured to generate a corresponding review state according to a review signal sent by an external controller, and send the review state to the test control circuit 11; and the test control circuit 11 generates corresponding return inspection information according to the return inspection state, and returns the return inspection information to the converter valve control device.
Specifically, in the embodiment of the present invention, one retest signal action circuit 12 is used to simulate all the switching devices of one converter valve submodule, and the retest signal action circuit 12 generates a corresponding retest state based on the received retest signal (the retest signal is used to simulate the operation state and the fault state of the submodule of one converter valve), where the retest state includes: the testing control circuit 11 integrates the return detection state into at least one central control panel program to be tested to obtain return detection information, and the return detection information is transmitted to the monitoring equipment through the converter valve control device.
In one embodiment, as shown in fig. 4, the trigger command detection circuit 13 includes: the testing device comprises a testing resistor 131, a probe 132 and an indicator light 133, wherein the testing resistor 131 is connected with the indicator light 133 in parallel and then connected with a testing control circuit 11, and is connected with the display device 3 through the probe 132; the display device 3 and the indicator lamp 133 are used to display the circuit connection status of the parallel circuit formed by the two.
After the trigger command detection circuit 13 according to the embodiment of the present invention receives the trigger command bit, the indicator light 133 is turned on or off according to the change of the trigger command bit, so that the circuit formed by connecting the test resistor 131 and the indicator light 133 in parallel is turned off or connected according to the change of the trigger command bit, and the display device 3 displays different circuit connection states.
For the trigger command with slow change, the user can judge whether the change of the modulation waveform and the control signal sent by the main control equipment is met or not through the on and off of the indicator lamp 133, and for the trigger command with fast change, the user can judge whether the change of the modulation waveform and the control signal sent by the main control equipment is met or not through the display content of the display device 3, so that whether the program of the converter valve control device is wrong or not is judged.
In one embodiment, as shown in fig. 5, the back detection signal operation circuit 12 includes: a rechecking channel selection switch 121, a rotary encoder 122 and at least one key switch 123.
As shown in fig. 5, the review channel selection switch 121 according to the embodiment of the present invention is connected to the test control circuit 11, and is configured to select a review fiber and a central control board program that need to be tested, and send a selection result to the test control circuit 11.
As shown in fig. 5, the first ends of the rotary encoder 122 and the key switch 123 of the embodiment of the present invention are both connected to the test control circuit 11, and the second ends are both grounded, wherein the rotary encoder 122 is connected to the display device 3 (which may be a nixie tube), and the key switch 123 may be grounded through a light emitting diode.
The rotary encoder 122 of the embodiment of the invention is used for changing the voltage value and the current value according to the return detection signal, and specifically, the rotary encoder 122 sends different voltage change values and current change values to the test control circuit through rotation in different directions, so that the voltage change value and the current change value when the sub-modules of the converter valve operate are simulated, the central control board program respectively increases and decreases the voltage rated value and the current rated value according to the voltage change value and the current change value, and the voltage/current collection quantity fluctuation of the central control board is simulated.
The on-off state of the key switch 123 of the embodiment of the present invention is used to represent a fault flag, that is, the number of the key switches is the same as the number of the switching devices of the submodule of the converter valve, each key switch represents a unique switching device, and the turning on or off of a key switch represents whether the switching device represented by the key switch is faulty or not.
According to the embodiment of the invention, the test control circuit 11 judges the central control board program and the return inspection optical fiber which need to be tested according to the received selection result of the return inspection channel selection switch 121, inputs the voltage change value, the current change value and the fault flag bit into at least one corresponding central control board program to obtain at least one return inspection information, and transmits the return inspection information to the converter valve control device through the corresponding return inspection optical fiber, and the converter valve control device transmits the return inspection information to the monitoring equipment.
According to the testing device of the converter valve control device provided by the embodiment of the invention, the trigger command detection circuit makes a simulation response to the received trigger command bit, so that a simple circuit structure is utilized to replace a complex converter valve, and the test of a trigger program can be realized; the return inspection channel selection switch selects a central control panel program to be tested and a return inspection optical fiber according to a return inspection signal, the test control circuit reads the rotation direction of the rotary encoder and a fault flag bit represented by the key switch, return inspection information is obtained according to a selection result, and the return inspection information is sent to the monitoring equipment through the converter valve control device, so that the return inspection program is tested.
Example 2
The embodiment of the invention provides a testing method of a converter valve control device, which is based on the testing device of the converter valve control device in the embodiment 1 and comprises the following steps:
step S11: for each test board card, corresponding simulation response is made according to a trigger command generated after the received modulation wave and control signal are analyzed and modulated by the converter valve control device; or generating a corresponding rechecking state according to a rechecking signal sent by the external controller, generating corresponding rechecking information according to the rechecking state, and transmitting the rechecking information back to the monitoring equipment through the valve control device of the converter valve.
Step S12: a user judges whether the converter valve control device and the central control board program have faults or not by comparing the modulation wave, the control signal and the corresponding simulation response; or, judging whether the valve control device of the converter valve, the program of the central control panel and the return detection optical fiber have faults or not by comparing the return detection information displayed by the monitoring equipment with the corresponding return detection state.
The test control circuit of the test board card is used for simulating the sub-modules of the converter valve and the central control board corresponding to the switch device of the sub-modules, so that the test control circuit has written a trigger program and a return detection program of at least one central control board.
The test board card of the embodiment of the invention analyzes the trigger command, analyzes a plurality of trigger command bits in a protocol, and sequentially sends the trigger command bits to the test area arranged in the test board card, the test area makes corresponding simulation reaction on the trigger command bits, and a user can judge whether the programs of a valve control device and a central control board of the converter valve are correct or not by comparing the simulation reaction with the corresponding modulation wave.
And when the test board card does not receive the return detection signal, the test board card sends the electric information rated value of the corresponding sub-module and the simulated failure-free information of the central control board to the converter valve control device. When the test board card receives the return detection signal, the return detection state is changed according to the return detection signal, wherein the return detection state is used for simulating the operation state of each submodule of the converter valve, and the operation state comprises the submodule fault state besides electrical information such as voltage, current and the like. The testing board card inputs the return inspection state into a central control board program to be tested to obtain return inspection information, the return inspection information is sent to the converter valve control device, the converter valve control device sends the return inspection information to the monitoring equipment, and a user judges whether the central control board program and the converter valve control device program are correct or not by comparing the return inspection state displayed by the display device with the return inspection information displayed by the monitoring equipment.
In an embodiment, as shown in fig. 6, for each test board, a process of making a corresponding simulation response according to a trigger command generated after analyzing and modulating a received modulation wave and a control signal by a converter valve control device includes:
step S21: the converter valve control device analyzes and modulates the received modulation wave and control signal sent by the main control equipment to obtain at least one trigger command, and sends the trigger command to the corresponding test board card.
Step S22: for each test board card, the built-in test control circuit analyzes the trigger command to obtain at least one trigger command bit, and the trigger command bits are sequentially sent to the trigger command detection circuit.
Step S23: according to the trigger command bit, an indicator lamp arranged in the trigger command detection circuit is turned on or turned off, and a display device connected with the probe displays the circuit connection state of a parallel circuit formed by the probe and the indicator lamp.
The test control circuit is connected with the converter valve control device and used for analyzing a received trigger command to obtain at least one trigger command bit, the trigger command bits are sequentially sent to the corresponding trigger command detection circuit, namely at least one central control board program is arranged in the test control circuit, at least one path of trigger command is received, the test control circuit analyzes each path of trigger command to obtain the trigger command bit of each path of trigger command, and the trigger command bits are sequentially sent to the trigger command detection circuit.
After the trigger command detection circuit receives the trigger command bit, the indicator light is turned on or off according to the change of the trigger command bit, so that a loop formed by connecting the test resistor and the indicator light in parallel is turned off or connected along with the change of the trigger command bit, and the display device displays different circuit connection states.
For the trigger command with slow change, the user can judge whether the change of the modulation wave and the control signal sent by the main control equipment is met or not through the on and off of the indicator lamp, and for the trigger command with fast change, the user can judge whether the change of the modulation wave and the control signal sent by the main control equipment is met or not through the display content of the display device, so that whether the program of the valve control device of the converter valve is wrong or not is judged.
In a specific embodiment, as shown in fig. 7, a process of generating a corresponding review state according to a review signal sent by an external controller, generating corresponding review information according to the review state, and sending the review information back to the monitoring device through the valve control device of the converter valve includes:
step S31: according to a return detection signal sent by an external controller, a rotary encoder arranged in a return detection signal action circuit obtains a voltage change value and a current change value through rotation, and sends the voltage change value and the current change value to a test control circuit; and the corresponding key switch simulates a fault zone bit by changing the switch state and sends the fault zone bit to the test control circuit.
Step S32: and according to the return detection signal, the return detection channel selection switch selects at least one central control board program to be tested and the return detection optical fiber, and sends a selection result to the test control circuit.
Step S33: the test control circuit integrates and inputs the selection result, the voltage change value, the current change value, the voltage rated value, the current rated value and the fault zone bit into a central control panel program to be detected to obtain the return detection information, and the return detection information is sent to the monitoring equipment through the converter valve control device.
The embodiment of the invention simulates all switching devices of a converter valve submodule by using a return detection signal action circuit, and the return detection signal action circuit generates a corresponding return detection state based on a received return detection signal (the return detection signal is used for simulating the running state and the fault state of the submodule of a converter valve), wherein the return detection state comprises the following steps: the testing control circuit integrates the return detection state into at least one central control panel program to be tested to obtain return detection information, and the return detection information is transmitted to the monitoring equipment through the converter valve control device.
The rotary encoder is used for changing a voltage value and a current value according to a return detection signal, and specifically, the rotary encoder sends different voltage change values and current change values to a test control circuit through rotation of the rotary encoder, so that the voltage value and the current value of a submodule of the converter valve during operation are simulated, a central control board program respectively increases and decreases a voltage rated value and a current rated value according to the voltage change values and the current change values, and voltage/current collection quantity fluctuation of a central control board is simulated.
The switch states of the key switches are used for representing fault zone bits, namely the number of the key switches is the same as that of the switch devices of the submodule of the converter valve, each key switch represents a unique switch device, and the on or off of the key switches represents whether the represented switch device is in fault or not.
The test control circuit of the embodiment of the invention judges the central control board program and the return inspection optical fiber to be tested according to the received selection result of the return inspection channel selection switch, inputs the voltage change value, the current change value and the fault flag bit into at least one corresponding central control board program to obtain at least one return inspection information, and transmits the return inspection information to the converter valve control device through the corresponding return inspection optical fiber, and the converter valve control device transmits the return inspection information to the monitoring equipment.
According to the test method of the converter valve control device, at least one central control board program is arranged in the test board card, and after the central control board program analyzes the trigger command, the test board card makes a corresponding simulation response to truly reflect the actual software and hardware operating environment of the valve control device, so that the trigger program test of the converter valve control device is realized; the test board card generates a corresponding recheck state based on the recheck signal, obtains recheck information through a central control board program to be tested, and transmits the recheck information back to the converter valve control device, so that the recheck program test of the converter valve control device is realized.
According to the test method of the converter valve control device provided by the embodiment of the invention, the trigger command detection circuit makes a simulation response to the received trigger command bit, so that a simple circuit structure is utilized to replace a complex converter valve, and the test of a trigger program can be realized; the return inspection channel selection switch selects a central control panel program to be tested and a return inspection optical fiber according to a return inspection signal, the test control circuit reads the rotation direction of the rotary encoder and a fault flag bit represented by the key switch, return inspection information is obtained according to a selection result, and the return inspection information is sent to the monitoring equipment through the converter valve control device, so that the return inspection program is tested.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (8)
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