Nuclear power station RIC system driving motor detection device

Abstract

The invention relates to a nuclear power station RIC system driving motor detection device which comprises a main control unit, a current acquisition unit, a detection control unit, a mode setting unit, an indication unit and a man-machine interaction unit. The current acquisition unit acquires current and sends a real-time current acquisition signal to the main control unit; the detection control executes a detection control operation and / or a mode control operation; the mode setting unit sets an operation mode of the driving motor; the indicating unit is used for indicating the running state and the running mode of the driving motor; and the man-machine interaction unit outputs and displays each operation state and test data of the driving motor. According to the invention, the electric shock risk of personnel and the wiring error risk in the test process can be reduced, the safety of equipment and personnel is ensured, the operation mode of the driving motor can be rapidly switched, the working efficiency is improved, the human factor risk is reduced, and the accuracy of equipment performance parameter measurement and the data display visualization can be enhanced.

Description

Technical Field

[0001] The present invention relates to the field of motor testing of in-core measurement systems, and more specifically, to a detection device for a driving motor of a nuclear power plant RIC system. Background Art

[0002] The function of the in-core measurement system (RIC system) of the reactor core is to regularly conduct flux map tests, provide parameters such as the neutron energy distribution map of the reactor core and the inclination of the reactor core quadrants, and at the same time calibrate the out-of-core nuclear measurement system. The in-core nuclear measurement system mainly includes three parts: a control cabinet, a distribution cabinet, and electromechanical equipment. Among them, the driving motor on the driving unit in the electromechanical equipment is responsible for the moving power source of the neutron probe. According to the measurement method of the RIC neutron probe, the motion modes of the driving motor are divided into the following several types: low-speed forward, low-speed backward, high-speed forward, and high-speed backward.

[0003] Since the performance of the driving motor directly affects the usability of the neutron probe, its parameters must be detected during each major overhaul. Due to the fact that the control cabinet and the distribution cabinet are both powered off during the major overhaul, the existing detection means can only remove the driving motor from the driving unit, and conduct various mode tests on the driving motor by repeatedly connecting wires at the wiring box of the driving motor, and finally reinstall it on the driving unit; due to the heavy weight of a single motor body and the complex connection with the driving unit, a large amount of manpower is required for disassembling and assembling the driving motor during each major overhaul; if care is not taken during the wiring process, it is very easy to cause industrial safety risks and human factor risks, and at the same time, a large amount of personnel dose irradiation is also caused because the driving motor is installed in a high-dose area. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a detection device for a driving motor of a nuclear power plant RIC system in view of the problems existing in the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problems is: to construct a detection device for a driving motor of a nuclear power plant RIC system, including: a main control unit, a current acquisition unit, a detection control unit, a mode setting unit, an indication unit, and a human-machine interaction unit;

[0006] The main control unit is respectively connected to the current acquisition unit, the detection control unit, the mode setting unit, the indication unit, and the human-machine interaction unit;

[0007] The current acquisition unit is used to acquire current and send the real-time current acquisition signal to the main control unit;

[0008] The detection control unit performs detection control operations and / or mode control operations according to the detection control signal and / or mode control signal output by the main control unit;

[0009] The mode setting unit is used to set the operating mode of the drive motor;

[0010] The indication unit is used to indicate the operating state and operating mode of the drive motor;

[0011] The human-machine interaction unit is used to output and display the operating states and test data of the drive motor.

[0012] In the drive motor detection device of the nuclear power plant RIC system according to the present invention, the current acquisition unit includes: an AC acquisition module;

[0013] The AC acquisition module is used to acquire the alternating current of the drive motor to obtain a real-time AC acquisition signal.

[0014] In the drive motor detection device of the nuclear power plant RIC system according to the present invention, the AC acquisition module includes: a first AC acquisition circuit, a second AC acquisition circuit, and a third AC acquisition circuit; the current acquisition unit further includes: a first AC transmitter, a second AC transmitter, and a third AC transmitter;

[0015] The first AC acquisition circuit is used to acquire the A-phase current of the drive motor to obtain an A-phase real-time current signal;

[0016] The second AC acquisition circuit is used to acquire the B-phase current of the drive motor to obtain a B-phase real-time current signal;

[0017] The third AC acquisition circuit is used to acquire the C-phase current of the drive motor to obtain a C-phase real-time current signal;

[0018] The first AC transmitter is connected to the first AC acquisition circuit and the main control unit, and is used to send the A-phase real-time current signal to the main control unit;

[0019] The second AC transmitter is connected to the second AC acquisition circuit and the main control unit, and is used to send the B-phase real-time current signal to the main control unit;

[0020] The third AC transmitter is connected to the third AC acquisition circuit and the main control unit, and is used to send the C-phase real-time current signal to the main control unit.

[0021] In the drive motor detection device of the nuclear power plant RIC system according to the present invention, the detection control unit includes: a current detection control circuit;

[0022] The current detection control circuit is connected to the main control unit, and controls the on / off of the main circuit according to the detection control signal output by the main control unit, so that the AC acquisition module acquires the alternating current of the drive motor when the main circuit is connected.

[0023] In the driving motor detection device of the nuclear power plant RIC system according to the present invention, the detection control unit further includes: a mode control module;

[0024] The mode control module is connected to the main control unit and is used to perform mode control operations according to the mode control signal output by the main control unit.

[0025] In the driving motor detection device of the nuclear power plant RIC system according to the present invention, the mode control module includes: a forward / backward control circuit and a high-speed / low-speed control circuit;

[0026] The forward / backward control circuit is connected to the main control unit and is used to control the driving motor to perform forward operation or backward operation according to the forward / backward control signal output by the main control unit;

[0027] The high-speed / low-speed control circuit is connected to the main control unit and is used to control the driving motor to perform high-speed operation or low-speed operation according to the high-speed / low-speed control signal output by the main control unit.

[0028] In the driving motor detection device of the nuclear power plant RIC system according to the present invention, the indication unit includes: a mode indication circuit;

[0029] The mode indication circuit is used to indicate the operation mode of the driving motor.

[0030] In the driving motor detection device of the nuclear power plant RIC system according to the present invention, the mode setting unit includes: a second selection switch and a third selection switch;

[0031] The second selection switch and the third selection switch are used to set the operation mode of the driving motor according to user operations.

[0032] In the driving motor detection device of the nuclear power plant RIC system according to the present invention, it further includes: a start / stop unit;

[0033] The start / stop unit is used to perform start / stop control operations.

[0034] In the driving motor detection device of the nuclear power plant RIC system according to the present invention, it further includes: an analog input channel, a digital input channel and an expansion unit;

[0035] The analog input channel is connected to the main control unit and is used to collect analog signals and send the analog signals to the main control unit;

[0036] The digital input channel is connected to the main control unit and is used to collect digital signals and send the digital signals to the main control unit;

[0037] The expansion unit is connected to the main control unit and is used to execute expansion functions.

[0038] The nuclear power plant RIC system drive motor detection device implementing the present invention has the following beneficial effects: It includes: a main control unit, a current acquisition unit, a detection control unit, a mode setting unit, an indication unit, and a human-machine interaction unit; the current acquisition unit acquires current and sends the real-time current acquisition signal to the main control unit; the detection control executes detection control operations and / or mode control operations; the mode setting unit sets the operating mode of the drive motor; the indication unit indicates the operating state and operating mode of the drive motor; the human-machine interaction unit outputs and displays the operating states and test data of the drive motor. Through the present invention, the risk of electric shock to personnel and the risk of wiring errors during the testing process can be reduced, ensuring the safety of equipment and personnel. At the same time, the operating mode of the drive motor can be quickly switched, improving work efficiency and reducing human factor risks. Moreover, the accuracy of measuring equipment performance parameters can be enhanced, and the data display is intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0040] Figure 1 is the principle block diagram of the nuclear power plant RIC system drive motor detection device provided by the present invention;

[0041] Figure 2 is a partial circuit diagram of the nuclear power plant RIC system drive motor detection device provided by the present invention;

[0042] Figure 3 is the wiring method of the high-speed mode relay K6;

[0043] Figure 4 is the wiring method of the low-speed mode relay K6;

[0044] Figure 5 is the wiring method of the forward state relay K5;

[0045] Figure 6 is the wiring method of the reverse state relay K5;

[0046] Figure 7 is the wiring method in the low-speed state;

[0047] Figure 8 is the wiring method in the high-speed state. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] To solve the problems of the existing in-core system drive motor test and detection in the reactor core, the present invention provides a drive motor detection device for a nuclear power plant RIC system. This drive motor detection device for a nuclear power plant RIC system can efficiently and quickly complete the on-line parameter detection of various operating modes of the drive motor without disassembling the drive motor and without external measuring equipment, ensuring the performance of the drive motor and guaranteeing the stability of the in-core nuclear measurement system.

[0050] Specifically, referring to Figure 1 , Figure 1 is a schematic block diagram of an embodiment of the drive motor detection device for a nuclear power plant RIC system provided by the present invention.

[0051] As Figure 1 shown, the drive motor detection device for a nuclear power plant RIC system includes: a main control unit 11, a current acquisition unit 12, a detection control unit 13, a mode setting unit 14, an indication unit 15, and a human-machine interaction unit 16.

[0052] Among them, the main control unit 11 is respectively connected to the current acquisition unit 12, the detection control unit 13, the mode setting unit 14, the indication unit 15, and the human-machine interaction unit 16. The main control unit 11 is used to execute the function control and management of the entire device, so as to realize the detection of the drive motor. Optionally, in the embodiments of the present invention, the main control unit 11 can be developed using the software of Siemens TIA Portal version 15.1. In TIA Portal 15.1, the main control unit 11 (i.e., the debugging controller) is faster and more efficient. In addition, TIA Portal has added a multi-user engineering debugging mode, and now the user program can be built using software units.

[0053] In the embodiments of the present invention, the current acquisition unit 12 is used to acquire current and send the real-time current acquisition signal to the main control unit 11. Optionally, the current acquisition unit 12 includes: an AC acquisition module; among them, the AC acquisition module is used to acquire the alternating current of the drive motor to obtain a real-time AC acquisition signal. Further, the current acquisition unit 12 further includes: a first AC transmitter, a second AC transmitter, and a third AC transmitter.

[0054] In some embodiments, the AC acquisition module includes: a first AC acquisition circuit, a second AC acquisition circuit, and a third AC acquisition circuit. Among them, the first AC acquisition circuit is used to acquire the A-phase current of the drive motor to obtain an A-phase real-time current signal; the second AC acquisition circuit is used to acquire the B-phase current of the drive motor to obtain a B-phase real-time current signal; the third AC acquisition circuit is used to acquire the C-phase current of the drive motor to obtain a C-phase real-time current signal; the first AC transmitter is connected to the first AC acquisition circuit and the main control unit 11, and is used to send the A-phase real-time current signal to the main control unit 11; the second AC transmitter is connected to the second AC acquisition circuit and the main control unit 11, and is used to send the B-phase real-time current signal to the main control unit 11; the third AC transmitter is connected to the third AC acquisition circuit and the main control unit 11, and is used to send the C-phase real-time current signal to the main control unit 11. Optionally, in the embodiments of the present invention, the first AC acquisition circuit, the second AC acquisition circuit, and the third AC acquisition circuit can all be implemented by ammeters. Among them, the alternating current collected by the first AC acquisition circuit, the second AC acquisition circuit, and the third AC acquisition circuit is about 700 mA, and these currents can all be converted into corresponding voltages by current transmitters and then transmitted to the main control unit 11.

[0055] In the embodiments of the present invention, the detection and control unit 13 performs detection and control operations and / or mode control operations according to the detection control signal and / or mode control signal output by the main control unit 11. Optionally, the detection and control unit 13 includes: a current detection and control circuit. Among them, the current detection and control circuit is connected to the main control unit 11, and controls the on / off of the main circuit according to the detection control signal output by the main control unit 11, so that the AC acquisition module acquires the alternating current of the drive motor when the main circuit is connected. Optionally, in the embodiments of the present invention, the current detection and control circuit can be implemented by a relay.

[0056] Further, the detection and control unit 13 further includes: a mode control module; the mode control module is connected to the main control unit 11 and is used to perform a mode control operation according to the mode control signal output by the main control unit 11. Optionally, in the embodiments of the present invention, the mode control module includes: a forward / backward control circuit and a high-speed / low-speed control circuit; the forward / backward control circuit is connected to the main control unit 11 and is used to control the drive motor to perform forward operation or backward operation according to the forward / backward control signal output by the main control unit 11; the high-speed / low-speed control circuit is connected to the main control unit 11 and is used to control the drive motor to perform high-speed operation or low-speed operation according to the high-speed / low-speed control signal output by the main control unit 11. Optionally, in the embodiments of the present invention, the mode control module can be implemented by a relay.

[0057] In an embodiment of the present invention, the mode setting unit 14 is configured to set the operating mode of the drive motor. Optionally, the mode setting unit 14 includes: a second selection switch and a third selection switch; the second selection switch and the third selection switch are configured to set the operating mode of the drive motor according to user operations. By combining the second selection switch and the third selection switch, rapid switching among the four operating modes of forward, reverse, high speed, and low speed can be achieved, which can not only reduce human factor risks but also improve work efficiency.

[0058] In an embodiment of the present invention, the indication unit 15 is configured to indicate the operating state and operating mode of the drive motor. Optionally, the indication unit 15 includes: a mode indication circuit; the mode indication circuit is configured to indicate the operating mode of the drive motor. In order to facilitate the tester to more readily grasp the operating mode and state of the drive motor in real time, the present invention provides 5 indicator light display channels, namely a high-speed indicator light, a low-speed indicator light, a forward indicator light, a reverse indicator light, and a drive motor status indicator light.

[0059] The human-machine interaction unit 16 is configured to output and display the operating states and test data of the drive motor. By providing the human-machine interaction unit 16, real-time output and display of the operating states and test data of the drive motor can be achieved, so that the user can make an intuitive judgment. Optionally, in an embodiment of the present invention, the display panel of the human-machine interaction unit 16 may adopt a Siemens SIMATIC SIMATIC HMI smart panel, which can meet various high visualization requirements at the device level and is used to complete human-machine interface tasks.

[0060] Furthermore, the drive motor detection device of the nuclear power plant RIC system further includes: a start-stop unit; the start-stop unit is configured to perform start-stop control operations. Specifically, through the start-stop unit, start-stop control of the detection device can be achieved. Optionally, the start-stop unit may include a start-stop switch. When the start-stop switch is pressed, the detection device starts to operate. When the start-stop switch is released, the power is cut off and the detection device stops operating.

[0061] Furthermore, the drive motor detection device of the nuclear power plant RIC system further includes: an analog input channel 17, a digital input channel 18, and an expansion unit 19. Among them, the analog input channel 17 is connected to the main control unit 11 and is configured to collect analog signals and send the analog signals to the main control unit 11. The digital input channel 18 is connected to the main control unit 11 and is configured to collect digital signals and send the digital signals to the main control unit 11; the expansion unit 19 is connected to the main control unit 11 and is configured to perform expansion functions.

[0062] Optionally, in the embodiment of the present invention, three analog input channels 17 (AI channels) may be provided, which are respectively used to collect the first AC transmitter, the second AC transmitter, and the third AC transmitter and transmit them to the main control unit 11. Eight digital input channels 18 (DIO channels) may be provided, which are respectively used to collect corresponding signals.

[0063] Optionally, in the embodiment of the present invention, the expansion unit 19 may include: 1 analog input module and 1 digital input module. By setting the analog input module and the digital input module, the scalability and integrity of the driving motor detection device of the nuclear power plant RIC system can be enhanced.

[0064] In the embodiment of the present invention, the driving motor detection device of the nuclear power plant RIC system is directly connected to the driving motor signal by an aviation plug. By directly connecting to the driving motor signal by an aviation plug, the purpose of not only not needing to disassemble the driving motor and the driving motor junction box is achieved, but also the risk of electric shock to personnel and the risk of wiring errors during the test can be reduced, ensuring the safety of equipment and personnel. The driving motor detection device of the nuclear power plant RIC system integrates each module into a dedicated test device, changing the traditional way of manually measuring with a multimeter, and enhancing the accuracy of measuring the performance parameters of electromechanical equipment. At the same time, the display of each state of the driving motor and the human-machine interface are added, and the test data is displayed on the human-machine interface in real time, making it more intuitive for maintenance personnel to judge. Further, the driving motor detection device of the nuclear power plant RIC system occupies a small space and is convenient to operate. For users, only simple training is required to use it.

[0065] The driving motor detection device of the nuclear power plant RIC system of the present invention is applicable to the detection of the driving motor of the driving unit of the nuclear core nuclear measurement system of the nuclear power plant, greatly improving the test efficiency of the driving motor, having higher reliability of collected data, avoiding repeated disassembly and assembly of the driving motor, ensuring the reliability of the equipment, reducing industrial safety risks and human factor risks during the test, and also reducing personnel dose exposure.

[0066] Reference Figure 2 , Figure 2 is a partial circuit diagram of the driving motor detection device of the nuclear power plant RIC system provided by the present invention.

[0067] As Figure 2 shown, three AC detection ammeters (defined as ammeter C, ammeter B, and ammeter A) are connected in series in sequence from left to right at the position of J. Among them, ammeter A is used to measure the A-phase current, ammeter B is used to measure the B-phase current, and ammeter C is used to measure the C-phase current. Figure 2In it, relay K3 is used to control the current measurement of the three-phase (phase A, phase B, and phase C) main circuit. That is, when relay K3 is in the released state, ammeters A, B, and C can measure the phase A current, phase B current, and phase C current respectively, and then transmit them to the main control unit 11 through the first AC transmitter, the second AC transmitter, and the third AC transmitter. Among them, the transmission of the first AC transmitter, the second AC transmitter, and the third AC transmitter to the main control unit 11 is not shown in the figure. As Figure 2 shown, the mode control module includes: relay K5, relay K6, relay K7, and relay K4. Among them, relay K5 is used to control the forward and backward movement of the drive motor, that is, forward rotation and reverse rotation, mainly by changing the phase sequence of the three-phase circuit through the energization and release of relay K5. Relays K6 and K7 are used to control the high-speed and low-speed operation of the drive motor. Since this drive motor is a two-speed motor, two wiring methods are used to switch between high speed and low speed. That is, the high-speed mode is realized through relay K6, that is, by controlling the coil of relay K6; the low-speed mode is realized through relay K7, by controlling the coil of relay K7. Among them, the wiring method of relay K6 in the high-speed mode is as Figure 3 shown, and the wiring method of relay K6 in the low-speed mode is as Figure 4 shown. Relay K4 is used to control the braking of the drive motor. As Figure 2 shown, when any one of relays K6 and K7 operates, relay K4 is energized and the brake is released, and at this time the drive motor starts to run.

[0068] As Figure 2 shown, the three current values of the drive motor are respectively used in the 3 AI channels, and analog quantity acquisition is performed through AI, and then converted into current and displayed on the software interface. The 8 DIO channels respectively adopt the states of D1, D2, D3, D4, S0, S1, S2, and S3.

[0069] As Figure 2 shown, the second selection switch and the third selection switch are used to manually set the forward, backward, high-speed, and low-speed operation of the drive motor, that is, the four operation modes of the drive motor can be set through the second selection switch and the third selection switch, namely low-speed forward, low-speed backward, high-speed forward, and high-speed backward. Specifically, S2 is a single-pole double-throw switch, with one side being the forward state of the drive motor and the other side being the backward state of the drive motor. Among them, the forward state and the backward state of the drive motor can be realized by controlling relay K5. Among them, in the forward state (abbreviated as S2-1), the wiring of relay K5 is as Figure 5 shown; in the backward state (abbreviated as S2-2), the wiring of relay K5 is as Figure 6As shown. Relay K6 and relay K7 control high speed and low speed respectively. The high-speed coil is U2, V2, W2, and the low-speed coil is U1, V1, W1, which is controlled by switch S3. Among them, switch S3 is the same as S2, both are single-pole double-throw switches. Among them, the low-speed state (abbreviated as S3-1) is as Figure 7 shown, and the high-speed state (abbreviated as S3-2) is as Figure 8 shown. Low-speed forward: S3-1 and S2-1; low-speed reverse: S3-1 and S2-2; high-speed forward: S3-2 and S2-1; high-speed reverse: S3-2 and S2-2; D1 (reverse), D2 (forward), D3 (low speed), D4 (high speed).

[0070] As Figure 2 shown, the mode indication circuit includes: the first light-emitting diode (D1), the second light-emitting diode (D2), the third light-emitting diode (D3), and the fourth light-emitting diode (D4). Among them, D1 indicates reverse, D2 indicates forward, D3 indicates low speed, and D4 indicates high speed.

[0071] As Figure 2 shown, S0 is the start-stop switch. When S0 is pressed, the operation starts, and when released, the power is cut off. That is, whether the drive motor operates can be controlled through S0. S1 is the control switch of relay K3, which is used to control whether relay K3 is excited.

[0072] The drive motor detection device of the RIC system of the nuclear power plant of the present invention combines software and hardware, adopts a modular design, realizes the rapid testing of the drive motor of the drive unit of the in-core nuclear measurement system of the nuclear power plant core, integrates the traditional maintenance method into a dedicated test device, enhances the accuracy of measuring the performance parameters of electromechanical equipment, and uses a signal acquisition module to collect data in real time and display the device status and current on the human-machine interface, reducing the industrial safety risk and human factor risk in the maintenance process, and has a wide application prospect.

[0073] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts between each embodiment, reference can be made to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0074] Those skilled in the art may further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present invention.

[0075] The steps of the methods or algorithms described in combination with the embodiments disclosed herein can be directly implemented by hardware, software modules executed by a processor, or a combination of the two. The software modules can be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0076] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They do not limit the protection scope of the present invention. All equivalent changes and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. A nuclear power plant RIC system drive motor detection device, characterized in that: include: Main control unit, current acquisition unit, detection control unit, mode setting unit, indication unit and human-computer interaction unit; The main control unit is connected to the current acquisition unit, the detection control unit, the indication unit and the human-computer interaction unit respectively; The current acquisition unit is used to collect current and send a real-time current acquisition signal to the main control unit; The detection control unit performs a detection control operation and / or a mode control operation according to the detection control signal and / or the mode control signal output by the main control unit; The mode setting unit is used to set the operation mode of the drive motor; The indicating unit is used to indicate the operating state and operating mode of the driving motor; The human-machine interaction unit is used to output and display various operating states and test data of the drive motor.

2. The driving motor detection device for the RIC system of a nuclear power plant according to claim 1, characterized in that: The current collection unit comprises: an AC collection module; The AC acquisition module is used to collect the AC power of the drive motor to obtain a real-time AC acquisition signal.

3. The driving motor detection device for the RIC system of a nuclear power plant according to claim 2, characterized in that: The AC acquisition module includes: a first AC acquisition circuit, a second AC acquisition circuit and a third AC acquisition circuit; the current acquisition unit also includes: a first AC transmitter, a second AC transmitter and a third AC transmitter; The first AC acquisition circuit is used to collect the A-phase current of the drive motor to obtain the A-phase real-time current signal; The second AC acquisition circuit is used to collect the B-phase current of the drive motor to obtain a B-phase real-time current signal; The third AC acquisition circuit is used to collect the C-phase current of the drive motor to obtain a C-phase real-time current signal; The first AC transmitter is connected to the first AC acquisition circuit and the main control unit, and is used to send the A-phase real-time current signal to the main control unit; The second AC transmitter is connected to the second AC acquisition circuit and the main control unit, and is used to send the B-phase real-time current signal to the main control unit; The third AC transmitter is connected to the third AC acquisition circuit and the main control unit, and is used to send the C-phase real-time current signal to the main control unit.

4. The driving motor detection device for the RIC system of a nuclear power plant according to claim 2, characterized in that: The detection control unit comprises: a current detection control circuit; The current detection control circuit is connected to the main control unit, and controls the on and off of the main circuit according to the detection control signal output by the main control unit, so that the AC acquisition module collects the AC power of the drive motor when the main circuit is connected.

5. The driving motor detection device for the RIC system of a nuclear power plant according to claim 1, characterized in that: The detection control unit further includes: a mode control module; The mode control module is connected to the main control unit and is used to perform a mode control operation according to a mode control signal output by the main control unit.

6. The driving motor detection device for the RIC system of a nuclear power plant according to claim 5, characterized in that: The mode control module includes: a forward / reverse control circuit and a high speed / low speed control circuit; The forward / reverse control circuit is connected to the main control unit and is used to control the drive motor to perform forward operation or reverse operation according to the forward / reverse control signal output by the main control unit; The high-speed / low-speed control circuit is connected to the main control unit and is used to control the drive motor to perform high-speed operation or low-speed operation according to the high-speed / low-speed control signal output by the main control unit.

7. The driving motor detection device for the RIC system of a nuclear power plant according to claim 1, characterized in that: The indicating unit comprises: a mode indicating circuit; The mode indication circuit is used to indicate the operation mode of the drive motor.

8. The driving motor detection device for the RIC system of a nuclear power plant according to claim 6, characterized in that: The mode setting unit includes: a second selection switch and a third selection switch; The second selection switch and the third selection switch are used to set the operation mode of the driving motor according to user operation.

9. The driving motor detection device of the RIC system of a nuclear power plant according to any one of claims 1 to 8, characterized in that: Also includes: Start-stop unit; The start-stop unit is used to perform a start-stop control operation.

10. The driving motor detection device for the RIC system of a nuclear power plant according to claim 9, characterized in that: Also includes: Analog input channels, digital input channels and expansion units; The analog input channel is connected to the main control unit and is used to collect analog signals and send the analog signals to the main control unit; The digital input channel is connected to the main control unit and is used to collect digital signals and send the digital signals to the main control unit; The expansion unit is connected to the main control unit and is used to perform expansion functions.

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