Practical training platform and practical training method for auxiliary machine control system of hydraulic power plant

Abstract

The invention provides a practical training platform and a practical training method for an auxiliary machine control system of a hydraulic power plant, and the practical training platform comprises a secondary disc cabinet, a PLC control system training region, a secondary control loop wiring region, a soft starter and a frequency converter function debugging region, a PLC control system training area, a secondary control loop wiring area and a soft starter and frequency converter function debugging area are integrated on the secondary panel cabinet; the PLC control system training area is used for training an operator how to use a programmable logic controller so as to design, program, debug and maintain the control system; the secondary control loop wiring area is used for training an operator how to correctly connect and configure a secondary control loop so as to simulate actual control loop operation; the soft starter and frequency converter function debugging area is used for training an operator how to debug and maintain the soft starter and the frequency converter so as to simulate actual control function operation of the soft starter and the frequency converter.

Description

Technical Field

[0001] The present application relates to the training fields of control logic verification, fault simulation, soft starter and inverter functions of electrical secondary equipment in power systems, and in particular to a training platform and training method for auxiliary equipment control systems of hydropower plants. Background Art

[0002] With the continuous improvement of the automation level of power systems, the configuration of auxiliary equipment control systems in power plants is becoming more and more perfect. Whether the auxiliary equipment control system can operate normally and stably directly affects the stable operation of the unit. However, there is currently no special training platform for auxiliary equipment control systems. Professionals can only learn the system during the maintenance period. As maintenance tasks become heavier and maintenance time becomes tighter, the professionals' abilities in auxiliary system control logic and equipment abnormality elimination are uneven. Summary of the invention

[0003] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0004] To this end, the first purpose of this application is to propose a training platform for the control system of auxiliary equipment in a hydropower plant.

[0005] The second object of this application is to propose a method.

[0006] The third objective of the present application is to provide an electronic device.

[0007] A fourth objective of the present application is to provide a computer-readable storage medium.

[0008] A fifth object of the present application is to provide a computer program product.

[0009] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a hydropower plant auxiliary machine control system training platform, comprising a secondary panel cabinet (1), a PLC control system training area (2), a secondary control circuit wiring area (3), a soft starter and inverter function debugging area (4), wherein:

[0010] The secondary cabinet (1) is integrated with the PLC control system training area (2), the secondary control circuit wiring area (3), and the soft starter and inverter function debugging area (4);

[0011] The PLC control system training area (2) is used to train operators on how to use a programmable logic controller (PLC) to design, program, debug and maintain the control system;

[0012] The secondary control loop connection area (3) is used to train operators on how to correctly connect and configure the secondary control loop to simulate actual control loop operation;

[0013] The soft starter and frequency converter function debugging area (4) is used to train operators on how to debug and maintain the soft starter and frequency converter, so as to simulate the actual control function operation of the soft starter and frequency converter.

[0014] Optionally, the PLC control system training area (2) includes a first power circuit breaker (201), a first power module (202), a programmable controller (203), a first wiring terminal (204), a touch screen (205), a first signal indication area (206), and a first signal input area (207); the programmable logic controller (203) includes a CPU (2031), a switch input module (2032), a switch output module (2033), an analog input module (2034), and an analog output module (2035), wherein:

[0015] The first power circuit breaker (201) provides or disconnects control power for the hydropower plant auxiliary machine control system training platform; the first power module (202) provides 24V control power for the hydropower plant auxiliary machine control system training platform; the programmable logic controller (203) writes the auxiliary machine system control logic for debugging as needed, or imports the existing control logic for fault simulation and logic defect detection; the first wiring terminal (204) is used to connect the programmable controller (203) with the first signal indication area (206) and the first signal input area (207) signal; the touch screen (205) communicates with the CPU (2031) and can perform simulated remote operation or provide feedback on fault signals and equipment operation conditions; the first signal indication area (206) is composed of red and green indicator lights, which are used to display the output signal of the programmable controller (203); the first signal input area (207) is composed of a ping-pong switch, which is used to simulate the signal input from the outside to the programmable controller (203).

[0016] Optionally, the secondary control circuit wiring area (3) includes a second power circuit breaker (301), a second power module (302), a mounting rail (303), a second wiring terminal (304), a second signal indication area (305), and a second signal input area (306), wherein:

[0017] The second power circuit breaker (301) provides or disconnects control power for the hydropower plant auxiliary machine control system training platform; the second power module (302) provides 24V control power for the hydropower plant auxiliary machine control system training platform; the installation rail (303) selects various automation components for installation according to training requirements; the second wiring terminal (304) is used to connect the automation components with the signals of the second signal indication area (305) and the second signal input area (306); the second signal indication area (305) is composed of red and green indicator lights, which are used to display the action feedback signals of the automation components; the second signal input area (306) is composed of a switching handle, a button, and a ping-pong switch, which are used to simulate the signals of external input automation components.

[0018] Optionally, the soft starter and inverter function debugging area (4) includes a third power circuit breaker (401), a phase sequence relay (402), a contactor (403), a thermal relay (404), an inverter (405), a soft starter (406), a variable frequency motor (407), a third wiring terminal (408), a third signal indication area (409), and a third signal input area (410), wherein:

[0019] The third power circuit breaker (401) provides power supply and control power supply for the hydropower plant auxiliary machine control system training platform; the phase sequence relay (402) is used to check the power supply voltage and phase sequence correctness of the hydropower plant auxiliary machine control system training platform; the contactor (403) is used to open and close the variable frequency motor (407) circuit in the auxiliary machine control system; the frequency converter (405) and soft starter (406) are used to start the variable frequency motor (407); the third wiring terminal (408) is used to connect the third The signal indication area (409) and the third signal input area (410) are connected to the signals of the frequency converter (405) and the soft starter (406); the third signal indication area (409) is composed of red and green indicator lights, and is used to display the action feedback signals of the frequency converter (405), the soft starter (406) and the starting variable frequency motor (407); the third signal input area (410) is composed of a switching handle and a button, and is used to simulate the external input signals of the frequency converter (405) and the soft starter (406).

[0020] Optionally, the programmable controller (203) and the touch screen (205) are connected by a network cable via a TCP protocol, and the touch screen (205) displays the various I / O states of the execution components of the programmable controller (203), and can be operated to issue corresponding instructions for the programmable controller (203) to perform corresponding executions.

[0021] Optionally, the frequency converter (405) and the soft starter (406) are connected to the variable frequency motor (407) by wires in parallel;

[0022] The soft starter and frequency converter function debugging area (4) further comprises a first contactor (4031) and a second contactor (4032), wherein the first contactor (4031) and the second contactor (4032) are mutually locked via a locking circuit, and cannot be started simultaneously after being locked.

[0023] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a training method applied to the hydropower plant auxiliary machine control system training platform described in any one of the first embodiment, including:

[0024] Open the door of the secondary cabinet (1), close the first power circuit breaker (201), and check whether the programmable controller (203) and the touch screen (205) are working properly;

[0025] The trainee connects the programmable controller (203) and the touch screen (205) through a debugging laptop, writes a program according to the task, and after writing, transfers the program to the programmable controller (203) and the touch screen (205), or imports an existing program into the programmable controller (203) and the touch screen (205);

[0026] After the program is uploaded, the function is debugged according to the training task requirements, the required signal input is simulated through the first signal input area (207) and the touch screen (205), and the corresponding action feedback signal is observed through the first signal indication area (206) and the touch screen (205);

[0027] Trainees modify the control program according to the action feedback to meet the requirements of the training topic;

[0028] The instructor evaluates the training results based on the trainees' debugging results.

[0029] To achieve the above-mentioned purpose, the third aspect of the present application proposes a training method for the hydropower plant auxiliary machine control system training platform described in any one of the first aspect of the present application, including:

[0030] Trainees design secondary control circuits according to the training tasks and draw secondary control wiring diagrams;

[0031] Open the door of the secondary cabinet (1), and the trainee selects the corresponding automation components according to the secondary wiring drawing and installs them on the installation rail (303);

[0032] The trainee connects the second signal indication area (305) and the second signal input area (306) to the automation components on the installation rail (303) through the second wiring terminal (304) using electric wires according to the secondary control wiring drawing;

[0033] After the wiring is completed, close the second power circuit breaker (301) and check whether all automation components are working properly;

[0034] According to the training function, the corresponding switch handle and button on the second signal input area (306) are operated, and the feedback signal of the indicator light of the second signal indication area (305) and the action of the automation components on the installation rail (303) are observed;

[0035] Trainees modify control drawings and wiring according to action feedback to meet the requirements of the training topic;

[0036] The instructor evaluates the training results based on the trainees' debugging results.

[0037] To achieve the above-mentioned purpose, the fourth aspect of the present application proposes a training method for a hydropower plant auxiliary machine control system training platform applied to any one of the first aspect of the present application, including:

[0038] Open the door of the secondary cabinet (1), close the third power circuit breaker (401), and check whether the soft starter (406) and the inverter (405) are powered on normally;

[0039] The trainees set the starting voltage parameter, limiting current parameter, maximum starting time parameter, acceleration ramp time parameter and deceleration ramp time parameter of the soft starter (406) according to the training task requirements;

[0040] The trainees set the motor direction parameters, motor operating speed parameters, and ramp selection parameters of the frequency converter (405) according to the training task requirements;

[0041] After the parameter setting is completed, the motor is started by pressing the operating button on the third signal input area (410), and the locking function of the first contactor (4031) and the second contactor (4032), and the correctness of the parameter setting of the soft starter (406) and the frequency converter (405) are verified by the third signal indication area (409);

[0042] The trainees modify the parameters of the soft starter (406) and the inverter (405) according to the action feedback to meet the requirements of the training topic;

[0043] The instructor evaluates the training results based on the trainees' debugging results.

[0044] To achieve the above-mentioned purpose, the fifth embodiment of the present application proposes a training method applied to the hydropower plant auxiliary machine control system training platform described in any one of the first embodiment, including:

[0045] Open the door of the secondary cabinet (1) and disconnect the third wiring terminal (408) in the soft starter and inverter training area (4) from the third signal indication area (409) and the third signal input area (410);

[0046] Connect the signal of the switch output module (2033) on the wiring terminal (204) in the PLC control system training area (2) to the corresponding signal input area (410) on the wiring terminal (408) in the soft starter and inverter training area (4) by wire;

[0047] Connect the signal of the switch quantity input module (2032) on the wiring terminal (204) in the PLC control system training area (2) to the corresponding signal indication area (409) on the wiring terminal (408) in the soft starter and frequency converter training area (4) by wire;

[0048] Close the first power circuit breaker (201) in the PLC control system training area (2) and the third power circuit breaker (401) in the soft starter and inverter training area (4), and check whether the programmable controller (203), the touch screen (205), the soft starter (406) and the inverter (405) are powered on normally;

[0049] The trainee connects the programmable controller (203) and the touch screen (205) through a debugging laptop, writes a program according to the task, and after writing, transfers the program to the programmable controller (203) and the touch screen (205), or imports an existing program into the programmable controller (203) and the touch screen (205);

[0050] The trainees set the starting voltage parameter, limiting current parameter, maximum starting time parameter, acceleration ramp time parameter and deceleration ramp time parameter of the soft starter (406) according to the training task requirements;

[0051] The trainees set the motor direction parameters, motor operating speed parameters, and ramp selection parameters of the frequency converter (405) according to the training task requirements;

[0052] After the program is uploaded, the function is debugged according to the training task requirements, the required signal input is simulated through the first signal input area (207) and the touch screen (205), and the action feedback signal of the soft starter (406) and the frequency converter (405) controlling the variable frequency motor (407) is observed through the first signal indication area (206) and the touch screen (205);

[0053] The trainees modify the PLC control program, soft starter (406) and inverter (405) parameters according to the action feedback to meet the requirements of the training topic;

[0054] The instructor evaluates the training results based on the trainees' debugging results.

[0055] To achieve the above-mentioned purpose, a sixth aspect of the present application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;

[0056] The memory stores computer-executable instructions;

[0057] The processor executes the computer-executable instructions stored in the memory to implement a method as described in any one of the second embodiment, the third embodiment, the fourth embodiment, or the fifth embodiment.

[0058] To achieve the above-mentioned purpose, the seventh aspect embodiment of the present application proposes a computer-readable storage medium, in which computer execution instructions are stored. When the computer execution instructions are executed by a processor, they are used to implement a method as described in any one of the second aspect embodiment, the third aspect embodiment, the fourth aspect embodiment, or the fifth aspect embodiment.

[0059] To achieve the above-mentioned purpose, the eighth aspect embodiment of the present application proposes a computer program product, which, when executed by a processor, implements the method as described in any one of the second aspect embodiment, the third aspect embodiment, the fourth aspect embodiment, or the fifth aspect embodiment.

[0060] The hydropower plant auxiliary machine control system training platform and training method, electronic equipment and storage medium provided in this application have the following beneficial effects:

[0061] The hydropower plant auxiliary machine control system training platform of this application rationally plans the location and space size of the PLC control system training area, secondary control circuit wiring area, soft starter and inverter function debugging area, and is beautiful overall, which can meet the use and operation requirements of different scenarios;

[0062] The training method of the hydropower plant auxiliary machine control system training platform of the present application can independently train PLC control system programming, secondary control loop wiring, soft starter and inverter functions, and can also simulate the hydropower plant auxiliary machine control program as needed to find program defects. The three areas can also be combined to conduct joint training on PLC programming, secondary wiring, soft starter and inverter functions. The training platform has flexible and changeable training methods to meet the training requirements of the hydropower plant auxiliary machine control system;

[0063] The training platform and training method for the auxiliary control system of a hydropower plant in the present application adopt the mainstream PLC controllers, automation components, soft starters and frequency converters of the current hydropower plants in the basin, which are in line with the actual operating status of the equipment on site. Targeted training can be provided for the auxiliary systems of the hydropower plant, and the skills of the professionals of the auxiliary equipment of the power plant in the basin in terms of PLC programming, secondary circuit design, wiring technology, soft starters and frequency converters can be improved. Meanwhile, the abilities of the professionals to eliminate defects and analyze faults can also be greatly improved. Faults in the auxiliary systems can also be simulated, and the causes of the faults can be analyzed by simulating on-site faults, and the best solutions can be proposed to solve practical problems for the power plant.

[0064] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0066] Figure 1 A schematic diagram of the structure of a hydropower plant auxiliary machine control system training platform provided in an embodiment of the present application;

[0067] Figure 2 A schematic diagram of the structure of the PLC control system training area provided in the embodiment of the present application;

[0068] Figure 3 A schematic diagram of the structure of the secondary control circuit wiring area provided in the embodiment of the present application

[0069] Figure 4 This is a structural schematic diagram of the soft starter and inverter function debugging area provided in the embodiment of the present application. DETAILED DESCRIPTION

[0070] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0071] With the continuous improvement of the automation level of power systems, the configuration of auxiliary equipment control systems in power plants is becoming more and more perfect. Whether the auxiliary equipment control system can operate normally and stably directly affects the stable operation of the unit. However, there is currently no special training platform for auxiliary equipment control systems. Professionals can only learn the system during the maintenance period. As maintenance tasks become heavier and maintenance time becomes tighter, the professionals' abilities in auxiliary system control logic and equipment abnormality elimination are uneven.

[0072] To address this problem, the embodiment of the present application provides a training platform for the auxiliary control system of a hydropower plant, which can solve the problems encountered by employees and trainees when carrying out related work such as operation, maintenance, and overhaul of the auxiliary control system of the hydropower plant. It can enable trainees to have a deeper understanding of auxiliary control systems such as PLC programs, touch screen programs, secondary control loop design, soft starters, and frequency converters that are often encountered in the actual production process of power plants. It can also simulate the control programs of various auxiliary systems of current power plants, which is convenient for quickly finding the cause of faults and improving the on-site fault elimination capabilities of professionals.

[0073] Figure 1 This is a schematic diagram of the structure of a hydropower plant auxiliary machine control system training platform provided in the embodiment of the present application. Figure 1 As shown, the hydropower plant auxiliary equipment control system training platform includes a secondary panel cabinet (1), a PLC control system training area (2), a secondary control circuit wiring area (3), and a soft starter and inverter function debugging area (4).

[0074] In the embodiment of the present application, a PLC control system training area (2), a secondary control circuit wiring area (3), and a soft starter and inverter function debugging area (4) are integrated on the secondary cabinet (1).

[0075] The PLC control system training area (2) is used to train operators on how to use programmable logic controllers (PLCs) to design, program, debug and maintain control systems. Operators can use this area to write or import control logic, perform fault simulation, find logic defects, and perform remote operation and monitoring through the touch screen.

[0076] The secondary control circuit wiring area (3) provides a practical operating environment. This area is used to train operators on how to properly connect and configure the secondary control circuit to simulate actual control circuit operation. This is a circuit used to control and protect equipment in the power system. Operators can install various automation components in this area and connect these components to the signal indication area and signal input area through wiring terminals to simulate actual control circuit operation.

[0077] The soft starter and inverter function debugging area (4) is used to train operators on how to debug and maintain soft starters and inverters. These devices are used in power systems to smoothly start motors and adjust motor speeds, so as to simulate the actual control function operations of soft starters and inverters. Operators can start, stop, and adjust the speed of inverters and soft starters in this area, and simulate the feedback signal and external control signal of the motor through the signal indication area and signal input area.

[0078] Figure 2This is a schematic diagram of the structure of the PLC control system training area provided in an embodiment of the present application.

[0079] like Figure 2 As shown, the PLC control system training area (2) includes a first power circuit breaker (201), a first power module (202), a programmable controller (203), a first wiring terminal (204), a touch screen (205), a first signal indication area (206), and a first signal input area (207); the programmable logic controller (203) includes a CPU (2031), a switch input module (2032), a switch output module (2033), an analog input module (2034), and an analog output module (2035).

[0080] In the embodiment of the present application, the first power circuit breaker (201) provides or disconnects the control power supply for the hydropower plant auxiliary machine control system training platform; the first power module (202) provides 24V control power supply for the hydropower plant auxiliary machine control system training platform; the programmable logic controller (203) writes the auxiliary machine system control logic for debugging as needed, or imports the existing control logic for fault simulation and logic defect detection; the first wiring terminal (204) is used to connect the programmable controller (203) with the first signal indication area (206) and the first signal input area (207) signal; the touch screen (205) communicates with the CPU (2031) and can perform simulated remote operation or feedback on fault signals and equipment operation conditions; the first signal indication area (206) is composed of red and green indicator lights, which are used to display the output signal of the programmable controller (203); the first signal input area (207) is composed of a ping-pong switch, which is used to simulate the signal input from the outside to the programmable controller (203).

[0081] In addition, the programmable controller (203) and the touch screen (205) are connected by a network cable via the TCP protocol. The touch screen (205) displays the various I / O states of the execution components of the programmable controller (203) and can be operated to issue corresponding instructions for the programmable controller (203) to perform corresponding operations.

[0082] Figure 3 A schematic diagram of the structure of the secondary control circuit wiring area provided in an embodiment of the present application.

[0083] like Figure 3 As shown, the secondary control circuit wiring area (3) includes a second power circuit breaker (301), a second power module (302), a mounting rail (303), a second wiring terminal (304), a second signal indication area (305), and a second signal input area (306).

[0084] In the embodiment of the present application, the second power circuit breaker (301) provides or disconnects the control power supply for the hydropower plant auxiliary equipment control system training platform; the second power module (302) provides 24V control power supply for the hydropower plant auxiliary equipment control system training platform; the installation rail (303) selects various automation components for installation according to training requirements; the second wiring terminal (304) is used to connect the automation components with the signals of the second signal indication area (305) and the second signal input area (306); the second signal indication area (305) is composed of red and green indicator lights, which are used to display the action feedback signals of the automation components; the second signal input area (306) is composed of a switching handle, a button, and a ping-pong switch, which are used to simulate the signals of external input automation components.

[0085] Figure 4 This is a structural schematic diagram of the soft starter and inverter function debugging area provided in the embodiment of the present application.

[0086] like Figure 4 As shown, the soft starter and inverter function debugging area (4) includes a third power circuit breaker (401), a phase sequence relay (402), a contactor (403), a thermal relay (404), an inverter (405), a soft starter (406), a variable frequency motor (407), a third wiring terminal (408), a third signal indication area (409), and a third signal input area (410).

[0087] In the embodiment of the present application, the third power circuit breaker (401) provides power supply and control power supply for the hydropower plant auxiliary machine control system training platform; the phase sequence relay (402) is used to ensure the power supply voltage and phase sequence correctness of the hydropower plant auxiliary machine control system training platform; the contactor (403) is used to open and close the variable frequency motor (407) circuit in the auxiliary machine control system; the frequency converter (405) and the soft starter (406) are used to start the variable frequency motor (407); the third wiring terminal (408) is used to connect the third power circuit breaker (401) and the soft starter (406) to the third power circuit breaker (408). The three signal indication areas (409) and the third signal input area (410) are connected to the signals of the frequency converter (405) and the soft starter (406); the third signal indication area (409) is composed of red and green indicator lights, and is used to display the action feedback signals of the frequency converter (405), the soft starter (406) and the starting variable frequency motor (407); the third signal input area (410) is composed of a switching handle and a button, and is used to simulate the external input signals of the frequency converter (405) and the soft starter (406).

[0088] In addition, the frequency converter (405) and the soft starter (406) are connected to the frequency conversion motor (407) by means of wires in parallel; the soft starter and frequency converter function debugging area (4) also includes a first contactor (4031) and a second contactor (4032), and the first contactor (4031) and the second contactor (4032) are mutually locked through a locking circuit, and after being locked, they cannot be started at the same time.

[0089] Based on the above-mentioned hydropower plant auxiliary equipment control system training platform, this application also proposes a training method applied to the hydropower plant auxiliary equipment control system training platform, which respectively involves PLC control system training steps, secondary control circuit wiring training steps, soft starter and frequency converter training steps, and PLC control soft starter and frequency converter starting training steps.

[0090] (1) PLC control system training steps include:

[0091] Open the door of the secondary cabinet (1), close the first power circuit breaker (201), and check whether the programmable controller (203) and the touch screen (205) are working properly;

[0092] The trainee connects the programmable controller (203) and the touch screen (205) by debugging the laptop computer, writes a program according to the task, and after writing, transfers the program to the programmable controller (203) and the touch screen (205), or imports an existing program into the programmable controller (203) and the touch screen (205);

[0093] After the program is uploaded, the function is debugged according to the training task requirements, the required signal input is simulated through the first signal input area (207) and the touch screen (205), and the corresponding action feedback signal is observed through the first signal indication area (206) and the touch screen (205);

[0094] Trainees modify the control program according to the action feedback to meet the requirements of the training topic;

[0095] The instructor evaluates the training results based on the trainees' debugging results.

[0096] (2) Secondary control circuit wiring training steps include:

[0097] Trainees design secondary control circuits according to the training tasks and draw secondary control wiring diagrams;

[0098] Open the door of the secondary cabinet (1), and the trainee selects the corresponding automation components according to the secondary wiring drawing and installs them on the installation rail (303);

[0099] The trainee connects the second signal indication area (305) and the second signal input area (306) to the automation components on the installation rail (303) through the second wiring terminal (304) using wires according to the secondary control wiring diagram;

[0100] After the wiring is completed, close the second power circuit breaker (301) and check whether all automation components are working properly;

[0101] According to the training function, the corresponding switch handle and button on the second signal input area (306) are operated, and the feedback signal of the indicator light of the second signal indication area (305) and the action of the automation components on the installation rail (303) are observed;

[0102] Trainees modify control drawings and wiring according to action feedback to meet the requirements of the training topic;

[0103] The instructor evaluates the training results based on the trainees' debugging results.

[0104] (3) The training steps for soft starters and inverters include:

[0105] Open the door of the secondary cabinet (1), close the third power circuit breaker (401), and check whether the soft starter (406) and the inverter (405) are powered on normally;

[0106] The trainees set the starting voltage parameter, limiting current parameter, maximum starting time parameter, acceleration ramp time parameter and deceleration ramp time parameter of the soft starter (406) according to the training task requirements;

[0107] The trainees set the motor direction parameters, motor operating speed parameters, ramp selection parameters, etc. of the inverter (405) according to the training task requirements;

[0108] After the parameter setting is completed, the motor is started by pressing the operating button on the third signal input area (410), and the locking function of the first contactor (4031) and the second contactor (4032), and the correctness of the parameter setting of the soft starter (406) and the frequency converter (405) are verified by the third signal indication area (409);

[0109] The trainees modify the parameters of the soft starter (406) and the inverter (405) according to the action feedback to meet the requirements of the training topic;

[0110] The instructor evaluates the training results based on the trainees' debugging results.

[0111] (4) The training steps for PLC controlled soft starter and inverter startup include:

[0112] Open the door of the secondary cabinet (1) and disconnect the third wiring terminal (408) in the soft starter and inverter training area (4) from the third signal indication area (409) and the third signal input area (410);

[0113] Connect the signal of the switch output module (2033) on the wiring terminal (204) in the PLC control system training area (2) to the corresponding signal input area (410) on the wiring terminal (408) in the soft starter and inverter training area (4) by wire;

[0114] Connect the signal of the switch quantity input module (2032) on the wiring terminal (204) in the PLC control system training area (2) to the corresponding signal indication area (409) on the wiring terminal (408) in the soft starter and frequency converter training area (4) by wire;

[0115] Close the first power circuit breaker (201) in the PLC control system training area (2) and the third power circuit breaker (401) in the soft starter and inverter training area (4), and check whether the programmable controller (203), the touch screen (205), the soft starter (406) and the inverter (405) are powered on normally;

[0116] The trainee connects the programmable controller (203) and the touch screen (205) by debugging the laptop computer, writes a program according to the task, and after writing, transfers the program to the programmable controller (203) and the touch screen (205), or imports an existing program into the programmable controller (203) and the touch screen (205);

[0117] The trainees set the starting voltage parameter, limiting current parameter, maximum starting time parameter, acceleration ramp time parameter and deceleration ramp time parameter of the soft starter (406) according to the training task requirements;

[0118] The trainees set the motor direction parameters, motor operating speed parameters, ramp selection parameters, etc. of the inverter (405) according to the training task requirements;

[0119] After the program is uploaded, the function is debugged according to the training task requirements, the required signal input is simulated through the first signal input area (207) and the touch screen (205), and the action feedback signal of the soft starter (406) and the frequency converter (405) controlling the variable frequency motor (407) is observed through the first signal indication area (206) and the touch screen (205);

[0120] The trainees modify the PLC control program, soft starter (406) and inverter (405) parameters according to the action feedback to meet the requirements of the training topic;

[0121] The instructor evaluates the training results based on the trainees' debugging results.

[0122] In order to implement the above embodiments, the present application also proposes an electronic device, comprising: a processor, and a memory communicatively connected to the processor; the memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method provided by the above embodiments.

[0123] In order to implement the above embodiments, the present application also proposes a computer-readable storage medium, in which computer-executable instructions are stored. When the computer-executable instructions are executed by a processor, they are used to implement the methods provided by the above embodiments.

[0124] In order to implement the above embodiments, the present application also proposes a computer program product, including a computer program, which implements the methods provided by the above embodiments when executed by a processor.

[0125] The collection, storage, use, processing, transmission, provision and disclosure of user personal information involved in this application are in compliance with relevant laws and regulations and do not violate public order and good morals.

[0126] It should be noted that personal information from users should be collected for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. In addition, such collection / sharing should be carried out after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign the agreement / authorization including authorization of relevant user information before the user uses the function. In addition, any necessary steps should be taken to protect and safeguard access to such personal information data and ensure that others who have access to personal information data comply with its privacy policy and procedures.

[0127] The present application is expected to provide an implementation scheme for users to selectively block the use or access of personal information data. That is, the present disclosure is expected to provide hardware and / or software to prevent or block access to such personal information data. Once the personal information data is no longer needed, the risk can be minimized by limiting data collection and deleting the data. In addition, when applicable, such personal information is de-identified to protect the privacy of the user.

[0128] In the description of the aforementioned embodiments, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0129] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0130] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0131] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0132] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0133] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0134] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0135] The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. A person of ordinary skill in the art may change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A training platform for the control system of auxiliary equipment in a hydropower plant, characterized in that: It includes secondary panel cabinet (1), PLC control system training area (2), secondary control circuit wiring area (3), soft starter and inverter function debugging area (4), among which: The secondary cabinet (1) is integrated with the PLC control system training area (2), the secondary control circuit wiring area (3), and the soft starter and inverter function debugging area (4); The PLC control system training area (2) is used to train operators on how to use a programmable logic controller (PLC) to design, program, debug and maintain the control system; The secondary control loop connection area (3) is used to train operators on how to correctly connect and configure the secondary control loop to simulate actual control loop operation; The soft starter and frequency converter function debugging area (4) is used to train operators on how to debug and maintain the soft starter and frequency converter, so as to simulate the actual control function operation of the soft starter and frequency converter.

2. The hydropower plant auxiliary machine control system training platform according to claim 1 is characterized in that: The PLC control system training area (2) comprises a first power circuit breaker (201), a first power module (202), a programmable controller (203), a first wiring terminal (204), a touch screen (205), a first signal indication area (206), and a first signal input area (207); the programmable logic controller (203) comprises a CPU (2031), a switch input module (2032), a switch output module (2033), an analog input module (2034), and an analog output module (2035), wherein: The first power circuit breaker (201) provides or disconnects control power for the hydropower plant auxiliary machine control system training platform; the first power module (202) provides 24V control power for the hydropower plant auxiliary machine control system training platform; the programmable logic controller (203) writes the auxiliary machine system control logic for debugging as needed, or imports the existing control logic for fault simulation and logic defect detection; the first wiring terminal (204) is used to connect the programmable controller (203) with the first signal indication area (206) and the first signal input area (207) signal; the touch screen (205) communicates with the CPU (2031) and can perform simulated remote operation or provide feedback on fault signals and equipment operation conditions; the first signal indication area (206) is composed of red and green indicator lights, which are used to display the output signal of the programmable controller (203); the first signal input area (207) is composed of a ping-pong switch, which is used to simulate the signal input from the outside to the programmable controller (203).

3. The hydropower plant auxiliary machine control system training platform according to claim 1 is characterized in that: The secondary control circuit wiring area (3) comprises a second power supply circuit breaker (301), a second power supply module (302), a mounting rail (303), a second wiring terminal (304), a second signal indication area (305), and a second signal input area (306), wherein: The second power circuit breaker (301) provides or disconnects control power for the hydropower plant auxiliary machine control system training platform; the second power module (302) provides 24V control power for the hydropower plant auxiliary machine control system training platform; the installation rail (303) selects various automation components for installation according to training requirements; the second wiring terminal (304) is used to connect the automation components with the signals of the second signal indication area (305) and the second signal input area (306); the second signal indication area (305) is composed of red and green indicator lights, which are used to display the action feedback signals of the automation components; the second signal input area (306) is composed of a switching handle, a button, and a ping-pong switch, which are used to simulate the signals of external input automation components.

4. The hydropower plant auxiliary machine control system training platform according to claim 1 is characterized in that: The soft starter and frequency converter function debugging area (4) comprises a third power supply circuit breaker (401), a phase sequence relay (402), a contactor (403), a thermal relay (404), a frequency converter (405), a soft starter (406), a frequency conversion motor (407), a third wiring terminal (408), a third signal indication area (409), and a third signal input area (410), wherein: The third power circuit breaker (401) provides power supply and control power supply for the hydropower plant auxiliary machine control system training platform; the phase sequence relay (402) is used to check the power supply voltage and phase sequence correctness of the hydropower plant auxiliary machine control system training platform; the contactor (403) is used to open and close the variable frequency motor (407) circuit in the auxiliary machine control system; the frequency converter (405) and soft starter (406) are used to start the variable frequency motor (407); the third wiring terminal (408) is used to connect the third The signal indication area (409) and the third signal input area (410) are connected to the signals of the frequency converter (405) and the soft starter (406); the third signal indication area (409) is composed of red and green indicator lights, and is used to display the action feedback signals of the frequency converter (405), the soft starter (406) and the starting variable frequency motor (407); the third signal input area (410) is composed of a switching handle and a button, and is used to simulate the external input signals of the frequency converter (405) and the soft starter (406).

5. The hydropower plant auxiliary machine control system training platform according to claim 2 is characterized in that: The programmable controller (203) and the touch screen (205) are connected by a network cable via a TCP protocol. The touch screen (205) displays the various I / O states of the execution components of the programmable controller (203) and can be operated to issue corresponding instructions for the programmable controller (203) to perform corresponding operations.

6. The hydropower plant auxiliary machine control system training platform according to claim 4 is characterized in that: The frequency converter (405) and the soft starter (406) are connected to the variable frequency motor (407) by means of electric wires in parallel; The soft starter and frequency converter function debugging area (4) further comprises a first contactor (4031) and a second contactor (4032), wherein the first contactor (4031) and the second contactor (4032) are mutually locked via a locking circuit, and cannot be started simultaneously after being locked.

7. A training method applied to a hydropower plant auxiliary machine control system training platform as claimed in any one of claims 1 to 6, characterized in that: include: Open the door of the secondary cabinet (1), close the first power circuit breaker (201), and check whether the programmable controller (203) and the touch screen (205) are working properly; The trainee connects the programmable controller (203) and the touch screen (205) through a debugging laptop, writes a program according to the task, and after writing, transfers the program to the programmable controller (203) and the touch screen (205), or imports an existing program into the programmable controller (203) and the touch screen (205); After the program is uploaded, the function is debugged according to the training task requirements, the required signal input is simulated through the first signal input area (207) and the touch screen (205), and the corresponding action feedback signal is observed through the first signal indication area (206) and the touch screen (205); Trainees modify the control program according to the action feedback to meet the requirements of the training topic; The instructor evaluates the training results based on the trainees' debugging results.

8. A training method applied to a hydropower plant auxiliary machine control system training platform as claimed in any one of claims 1 to 6, characterized in that: include: Trainees design secondary control circuits according to the training tasks and draw secondary control wiring diagrams; Open the door of the secondary cabinet (1), and the trainee selects the corresponding automation components according to the secondary wiring drawing and installs them on the installation rail (303); The trainee connects the second signal indication area (305) and the second signal input area (306) to the automation components on the installation rail (303) through the second wiring terminal (304) using electric wires according to the secondary control wiring drawing; After the wiring is completed, close the second power circuit breaker (301) and check whether all automation components are working properly; According to the training function, the corresponding switch handle and button on the second signal input area (306) are operated, and the feedback signal of the indicator light of the second signal indication area (305) and the action of the automation components on the installation rail (303) are observed; Trainees modify control drawings and wiring according to action feedback to meet the requirements of the training topic; The instructor evaluates the training results based on the trainees' debugging results.

9. A training method applied to a hydropower plant auxiliary machine control system training platform as claimed in any one of claims 1 to 6, characterized in that: include: Open the door of the secondary cabinet (1), close the third power circuit breaker (401), and check whether the soft starter (406) and the inverter (405) are powered on normally; The trainees set the starting voltage parameter, limiting current parameter, maximum starting time parameter, acceleration ramp time parameter and deceleration ramp time parameter of the soft starter (406) according to the training task requirements; The trainees set the motor direction parameters, motor operating speed parameters, and ramp selection parameters of the frequency converter (405) according to the training task requirements; After the parameter setting is completed, the motor is started by pressing the operating button on the third signal input area (410), and the locking function of the first contactor (4031) and the second contactor (4032), and the correctness of the parameter setting of the soft starter (406) and the frequency converter (405) are verified by the third signal indication area (409); The trainees modify the parameters of the soft starter (406) and the inverter (405) according to the action feedback to meet the requirements of the training topic; The instructor evaluates the training results based on the trainees' debugging results.

10. A training method applied to a hydropower plant auxiliary machine control system training platform according to any one of claims 1 to 6, characterized in that: include: Open the door of the secondary cabinet (1) and disconnect the third wiring terminal (408) in the soft starter and inverter training area (4) from the third signal indication area (409) and the third signal input area (410); Connect the signal of the switch output module (2033) on the wiring terminal (204) in the PLC control system training area (2) to the corresponding signal input area (410) on the wiring terminal (408) in the soft starter and inverter training area (4) by wire; Connect the signal of the switch quantity input module (2032) on the wiring terminal (204) in the PLC control system training area (2) to the corresponding signal indication area (409) on the wiring terminal (408) in the soft starter and frequency converter training area (4) by wire; Close the first power circuit breaker (201) in the PLC control system training area (2) and the third power circuit breaker (401) in the soft starter and inverter training area (4), and check whether the programmable controller (203), the touch screen (205), the soft starter (406) and the inverter (405) are powered on normally; The trainee connects the programmable controller (203) and the touch screen (205) through a debugging laptop, writes a program according to the task, and after writing, transfers the program to the programmable controller (203) and the touch screen (205), or imports an existing program into the programmable controller (203) and the touch screen (205); The trainees set the starting voltage parameter, limiting current parameter, maximum starting time parameter, acceleration ramp time parameter and deceleration ramp time parameter of the soft starter (406) according to the training task requirements; The trainees set the motor direction parameters, motor operating speed parameters, and ramp selection parameters of the frequency converter (405) according to the training task requirements; After the program is uploaded, the function is debugged according to the training task requirements, the required signal input is simulated through the first signal input area (207) and the touch screen (205), and the action feedback signal of the soft starter (406) and the frequency converter (405) controlling the variable frequency motor (407) is observed through the first signal indication area (206) and the touch screen (205); The trainees modify the PLC control program, soft starter (406) and inverter (405) parameters according to the action feedback to meet the requirements of the training topic; The instructor evaluates the training results based on the trainees' debugging results.

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