An automatic testing device and method for rod control system panels of a million-kilowatt nuclear power plant

Abstract

An automated test device for rod control system panels of a million-kilowatt nuclear power plant comprises a rod control minimum system, an automated test module, a network interconnection module, a cabinet AC circuit breaker, and an external power system switch; wherein the rod control minimum system comprises a PLC7, a transformer, a rod control card and a chassis, and a simulated load, the transformer and the simulated load are both connected to the rod control card and the chassis through hard wiring, the rod control card and the chassis are connected to the PLC through hard wiring; the PLC is connected to a switch through a network; the automated test module comprises a test chassis and a NI device, the test chassis is connected to the NI device through hard wiring, and the NI device is connected to the switch through a network.

Description

Technical Field

[0001] This invention relates to the technical field of rod control and rod position systems in nuclear power plants, and specifically to the construction of a minimum system platform for rod control, a method for testing boards and fault location for rod control systems, and a device for testing boards for rod control systems. It is an automated testing method and device for boards in rod control systems of million-kilowatt nuclear power plants. Background Art

[0002] The rod control system cabinet adopts a 1-to-4 design, that is, one cabinet controls four rod bundles and has 4 sets of rod control chassis and cards.

[0003] The minimum stick control system is proposed to be used for stick control system card and chassis functional performance testing, copy machine experiment, stick control system training, spare parts testing, etc. The initial stick control minimum system structure is relatively simple, the operation interface and operation logic are quite different from the on-site working conditions, the upper computer system is switches and buttons, parameter modification is cumbersome, the control process is complicated, and it cannot simulate the actual on-site use environment.

[0004] At present, the board test of the rod control system is mostly done with temporary or simulated tools. The test process is complicated and requires 1 to 2 people to complete. It also requires a variety of equipment such as switching power supplies, voltage regulating power supplies, multimeters, oscilloscopes, graphic recorders, etc. The operation is complicated and the efficiency is low. Summary of the invention

[0005] The purpose of the present invention is to propose and design an automatic testing method and device for the rod control system panels of a million-kilowatt nuclear power plant.

[0006] The technical solution of the present invention is as follows: an automatic test device for a rod control system panel of a million-kilowatt nuclear power plant, comprising a rod control minimum system, an automatic test module, a network interconnection module, a cabinet AC circuit breaker, and an external power system switch;

[0007] The minimum stick control system includes PLC7, transformer, stick control card and chassis, and simulated load. The transformer and simulated load are connected to the stick control card and chassis through hard wiring, and the stick control card and chassis are connected to PLC through hard wiring; PLC is connected to the switch through the network;

[0008] The automated test module includes a test chassis and a NI device. The test chassis is connected to the NI device via hard wiring, and the NI device is connected to the switch via a network.

[0009] The network interconnection module includes a switch and a host computer laptop, and the switch is connected to the host computer laptop through a network;

[0010] The external power system switch and cabinet AC circuit breaker provide power to the entire test device.

[0011] A testing method for an automatic testing device for a rod control system panel of a million-kilowatt nuclear power plant comprises the following steps:

[0012] S1: Power on the device; turn on the external power system switch and the cabinet AC circuit breaker;

[0013] S2: System self-test; NI devices and PLC start self-test and enter standby mode after self-test is completed; NI devices transmit standby signals to the switch through the network, and after the switch manages and distributes the signals, it uploads the standby status to the host computer laptop host computer interface through the network;

[0014] S3: Automated test parameter setting: Set the corresponding parameters of the NI device through the host computer laptop; after the setting is completed, the data is transmitted to the switch through the network, and the switch manages and distributes the signal and transmits it to the NI device through the network;

[0015] S4: Automated testing; start the test through the host computer laptop; the start test command is transmitted to the switch through the network, the switch manages and distributes the signal and then transmits it to the set NI device through the network, the NI device collects relevant data in the test chassis through hard wiring, and the NI device generates the test result; the test result is transmitted to the switch through the network, the switch manages and distributes the signal, and then uploads the test result to the host computer laptop through the network, and displays the corresponding test result;

[0016] S5: Installation of the stick control minimum system: remove the boards that have completed the test in the test chassis and install them in the stick control chassis;

[0017] S6: Setting the minimum system parameters of the stick control; Setting the parameters in the PLC through the upper computer laptop; After the setting is completed, the data is transmitted to the switch through the network, and the switch manages and distributes the signal and transmits it to the PLC through the network, and the parameter setting is completed;

[0018] S7: Move the stick; start the stick through the laptop of the host computer; the stick moving command is transmitted to the switch, the switch manages and distributes the signal and transmits it to the setting PLC through the network, the PLC compiles the signal and sends it to the simulated load through the stick control card and the chassis to generate current;

[0019] S8: Observe the stick interface of the upper computer notebook. When the stick count reaches 300 to 500 steps and there is no abnormal alarm during the period, the test is completed.

[0020] In S2, the NI device and PLC start self-testing through the internal pre-compiled program.

[0021] In S3, the corresponding parameters of the NI device are set through the host computer interface pre-compiled by the host computer notebook.

[0022] In S3, the NI device waits for one device scan cycle before parameter setting is completed.

[0023] In S4, the automated test interface is selected on the host computer interface pre-compiled by the host computer notebook to start the test.

[0024] In S4, after the NI device runs for 5-6 cycles, a test result is generated.

[0025] In S5, the parameters in the PLC are set by selecting the dynamic stick interface through the host computer interface pre-compiled by the host computer notebook.

[0026] In S1, the external power supply is 220VAC and 380VAC.

[0027] The significant effect of the present invention is that it realizes the functions of automatic testing of the rod control system card parts and card copying. The method is easy to promote and can be promoted on most rod control systems. At the same time, the device has been used in Fuqing Nuclear Power Plant, and has completed 60 spare parts tests, 5 spare parts fault location, 65 spare parts copying experiments, and 1 training. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the automated testing device for the rod control system panels of a million-kilowatt nuclear power plant;

[0029] In the figure: 1 external power system switch, 2 cabinet AC circuit breaker, 3 test chassis, 4 NI equipment, 5 switch, 6 host computer laptop, 7 PLC, 8 transformer, 9 stick control card and chassis, 10 simulated load DETAILED DESCRIPTION

[0030] An automatic test device for rod control system panels of a million-kilowatt nuclear power plant comprises a rod control minimum system, an automatic test module, a network interconnection module, a cabinet AC circuit breaker 2, and an external power supply system switch 1.

[0031] The minimum rod control system includes PLC7, transformer 8, rod control card and chassis 9, and simulated load 10. The transformer 8 and simulated load 10 are connected to the rod control card and chassis 9 through hard wiring. The rod control card and chassis 9 are connected to PLC7 through hard wiring. PLC7 is connected to switch 5 through the network.

[0032] The automated test module includes a test chassis 3 and a NI device 4. The test chassis 3 is connected to the NI device 4 through hard wiring, and the NI device 4 is connected to a switch 5 through a network.

[0033] The network interconnection module includes a switch 5 and a host computer laptop 6, and the switch 5 is connected to the host computer laptop 6 via a network;

[0034] External power system switch 1 provides power to the entire test device

[0035] Minimum rod control system: According to the minimum motion unit (single rod operation principle), the transformer 8, rod control card and chassis 9, simulated load 10, and PLC7 are connected and installed through hardware lines. PLC7 is the control part of the minimum rod control system, which is used to control the movement direction, speed, movement mode, etc. of the rod control system; the transformer 8 converts the external AC power supply into the power supply 260VAC used by the system; the rod control card and chassis 9 are the units under test or experimental units; the simulated load 10 is an actuator, which is used to simulate the on-site moving rod drive mechanism of the nuclear power plant.

[0036] Automated test part: the test chassis 3 is used as the unit under test; the NI device 4 is used to test the card components in the chassis under test.

[0037] Network interconnection part: Use network cables to connect NI device 4, PLC 7, switch 5, and host computer laptop 6. PLC 7 and NI device 4 are controlled devices; switch 5 is a transfer and network management unit; the host computer laptop is a logic editor and host computer operation interface.

[0038] An automated testing method for a rod control system panel of a million-kilowatt nuclear power plant comprises the following steps:

[0039] S1: Power on the device. Power on through the external power system switch 1; the rod control minimum system is powered on through transformer 8; the automation test module and the network interconnection module are powered on through the cabinet AC circuit breaker 2;

[0040] S2: System self-test. NI device 4 and PLC 7 start self-test through the internal pre-compiled program, and enter standby mode after the self-test is completed. NI device 4 transmits the standby signal to switch 5 through the network. After switch 5 manages and distributes the signal, it uploads the standby state to the host computer interface of host notebook 6 through the network.

[0041] S3: Automated test parameter setting. Select the automated test interface through the host computer interface pre-compiled by the host computer notebook 6, and set the corresponding parameters of the NI device; after the setting is completed, the data is transmitted to the switch 5 through the network, and the switch 5 manages and distributes the signal and transmits it to the NI device 4 through the network. After the NI device 4 waits for 1 device scan cycle, the parameter setting is completed. (Currently set to AB power card)

[0042] S4: Automated test. In the upper computer interface pre-compiled by the upper computer notebook 6, select the automated test interface and start the test; the start test instruction is transmitted to the switch 5 through the network, and the switch 5 manages and distributes the signal and transmits it to the set NI device 4 through the network 11. The NI device 4 collects relevant data in the test chassis 3 through hard wiring, and generates test results after the NI device 4 runs for 5-6 cycles; the test results are transmitted to the switch 5 through the network, and the switch 5 manages and distributes the signal, and uploads the test results to the automated test interface of the upper computer notebook 6 through the network 17, and displays the corresponding test results.

[0043] S5: Installation of the stick control minimum system. Remove the board that has completed the test from the test chassis 3 and install it into the stick control chassis 9.

[0044] S6: Setting the minimum system parameters of stick control. Select the stick control interface through the upper computer interface pre-compiled by the upper computer notebook 6, and set the parameters in PLC7; after the setting is completed, the data is transmitted to the switch 5 through the network, and the switch 5 manages and distributes the signal and transmits it to PLC 7 through the network. After PLC7 waits for 1 device scanning cycle, the parameter setting is completed. (Currently set to stick lifting mode, speed 72, normal stick movement)

[0045] S7: start the stick; in the upper computer interface pre-compiled by the upper computer notebook 6, select the stick interface and start the stick. The stick command is transmitted to the switch 5 through the network 17, and the switch 5 manages and distributes the signal and transmits it to the setting PLC7 through the network. After the PLC7 compiles the signal, it controls the stick control card and the chassis 9 through hard wiring. The stick control card and the chassis 9 control the power sent by the transformer 8 through hard wiring through PWM, and then send it to the simulated load 10 through hard wiring to generate current.

[0046] S8: Observe the 6-step moving stick interface of the host computer notebook. When the moving stick times display 300 to 500 steps and there is no abnormal alarm during the period, the test is completed.

[0047] In S1, the external power supply is 220VAC and 380VAC;

[0048] In S3, the card types are set to be A / B power supply, LC / MC / SC setting, adjustment, LC / MC / SC detection 1, and LC / MC / SC detection 2;

[0049] In S6, the parameters are set to be lifting, insertion, speed 0-72, etc.

Claims

1. An automatic test device for the rod control system of a million-kilowatt nuclear power plant, characterized in that: It includes a rod control minimum system, an automated test module, a network interconnection module, a cabinet AC circuit breaker (2), and an external power system switch (1); The minimum rod control system includes a PLC (7), a transformer (8), a rod control card and a chassis (9), and a simulated load (10). The transformer (8) and the simulated load (10) are connected to the rod control card and the chassis (9) through hard wiring. The rod control card and the chassis (9) are connected to the PLC (7) through hard wiring. The PLC (7) is connected to the switch (5) through a network. The automated test module comprises a test chassis (3) and a NI device (4), wherein the test chassis (3) is connected to the NI device (4) via hard wiring, and the NI device (4) is connected to a switch (5) via a network; The network interconnection module comprises a switch (5) and a host computer notebook (6), and the switch (5) is connected to the host computer notebook (6) via a network.

2. According to claim 1, a million-kilowatt nuclear power plant rod control system board automatic testing device is characterized by: The external power system switch (1) and the cabinet AC circuit breaker (2) provide power to the entire test device.

3. A testing method using the automatic testing device for the rod control system of a million-kilowatt nuclear power plant as claimed in claim 2, characterized in that: The following steps are involved: S1: Power on the device; turn on the external power system switch (1) and the cabinet AC circuit breaker (2); S2: System self-check; the NI device (4) and the PLC (7) start self-checking, and enter the standby mode after the self-checking is completed; the NI device (4) transmits the standby signal to the switch (5) through the network, and after the switch (5) manages and distributes the signal, it uploads the standby state to the host computer interface of the host notebook (6) through the network; S3: Automated test parameter setting; setting the corresponding parameters of the NI device through the host computer notebook (6); after the setting is completed, the data is transmitted to the switch (5) through the network, and the switch (5) manages and distributes the signal and transmits it to the NI device (4) through the network; S4: automated testing; starting the test through the host computer notebook (6); transmitting the start test instruction to the switch (5) through the network, the switch (5) manages and distributes the signal and then transmits it to the set NI device (4) through the network (11), the NI device (4) collects relevant data in the test chassis (3) through hard wiring, and the NI device (4) generates a test result; the test result is transmitted to the switch (5) through the network, the switch (5) manages and distributes the signal, and then uploads the test result to the host computer notebook (6) through the network, and displays the corresponding test result; S5: Installation of the minimum stick control system; removing the board that has completed the test from the test chassis (3) and installing it into the stick control card and chassis (9); S6: Setting the minimum system parameters of the stick control; setting the parameters in the PLC (7) through the upper computer notebook (6); after the setting is completed, the data is transmitted to the switch (5) through the network, and the switch (5) manages and distributes the signal and transmits it to the PLC (7) through the network, and the parameter setting is completed; S7: moving the stick; starting the moving stick through the upper computer laptop; the moving stick instruction is transmitted to the switch (5), the switch (5) manages and distributes the signal and transmits it to the setting PLC (7) through the network, the PLC (7) compiles the signal and sends it to the simulated load (10) through the stick control card and the chassis (9), generating current; S8: Observe through the upper computer notebook (6) that the number of stick movements shows 300 to 500 steps, and there is no abnormal alarm during the period, which means the test is completed.

4. A testing method according to claim 3, characterized in that: In S2, the NI device (4) and the PLC (7) start self-checking through the internal pre-compiled program.

5. A testing method according to claim 3, characterized in that: In the above S3, the corresponding parameters of the NI device are set through the host computer interface pre-compiled by the host computer notebook (6).

6. A testing method according to claim 3, characterized in that: In S3, the NI device (4) waits for one device scanning cycle and then the parameter setting is completed.

7. A testing method according to claim 3, characterized in that: In S4, in the host computer interface pre-compiled by the host computer notebook (6), the automatic test interface is selected to start the test.

8. A testing method according to claim 3, characterized in that: In S4, after the NI device (4) runs for 5-6 cycles, a test result is generated.

9. A testing method according to claim 3, characterized in that: In the above S5, the upper computer interface pre-compiled by the upper computer notebook (6) is used to select the dynamic stick interface and set the parameters in the PLC (7).

10. A testing method according to claim 3, characterized in that: In S1, the external power supply is 220VAC and 380VAC.

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