High-speed magnetic levitation power load hardware-in-the-loop simulation test platform and method

Abstract

The invention discloses a high-speed magnetic levitation power load hardware-in-the-loop simulation test platform and method, and relates to the technical field of hardware-in-the-loop, and the high-speed magnetic levitation power load hardware-in-the-loop simulation test platform comprises a tested controller and a power load simulation module. The power load simulation module is connected with the tested controller through a power cable and a digital signal line, and the power load simulation module can provide a power test environment required by operation for the tested controller. According to the high-speed magnetic levitation power load hardware-in-loop simulation test platform, high-power signal transmission and power characteristic real-time online simulation are realized, and the defect that signal-level hardware-in-loop simulation cannot meet the high-power test requirement of a controller driving part in the prior art is overcome; and the integrity and the accuracy of the test of the high-speed magnetic levitation system controller are obviously improved.

Description

Technical Field

[0001] This application relates to the field of hardware-in-the-loop technology, and particularly to a high-speed maglev power load hardware-in-the-loop simulation test platform and method. Background Art

[0002] With the continuous development of high-speed maglev train technology, higher requirements are put forward for the performance testing and verification of its key electrical equipment. The key electrical equipment of high-speed maglev trains, such as linear motors, on-vehicle batteries, suspension / guidance electromagnets, etc., the testing of their power characteristics and control strategies is crucial for ensuring the safe operation and high-efficiency performance of the trains. Traditional testing methods mainly rely on actual operation testing, but this method is costly, risky, and it is difficult to achieve comprehensive testing of various working conditions.

[0003] Existing test platforms are based on signal-level hardware-in-the-loop simulation technology, which can simulate traction converter equipment, switching equipment, sensors, etc., to realize the testing of the control hardware of the controller and the control strategy. However, the signal-level hardware-in-the-loop simulation technology has certain limitations, mainly manifested in that it can only realize the small-power signal transmission between the control part of the controller and the real-time simulation model, and cannot meet the large-power signal transmission requirements of the drive part of the controller. This results in the inability to effectively test the drive and power circuits and other parts when comprehensively testing the controller, thus affecting the integrity and accuracy of the testing. Summary of the Invention

[0004] The purpose of this application is to provide a high-speed maglev power load hardware-in-the-loop simulation test platform, which realizes large-power signal transmission and real-time online simulation of power characteristics, solves the defect that the signal-level hardware-in-the-loop simulation in the prior art cannot meet the large-power test requirements of the drive part of the controller, and significantly improves the integrity and accuracy of the testing of the high-speed maglev system controller. Another purpose of this application is to provide a high-speed maglev power load hardware-in-the-loop simulation test method.

[0005] To achieve the above purpose, this application provides a high-speed maglev power load hardware-in-the-loop simulation test platform, including:

[0006] The controller under test;

[0007] A power load simulation module, which is connected to the controller under test through a power cable and a digital signal line, and the power load simulation module can provide a power test environment required for the operation of the controller under test.

[0008] In some embodiments, the power load simulation module includes:

[0009] A real-time simulation device for building a high-speed maglev power load model;

[0010] A power interface device is connected between the controller under test and the real-time simulation device, and the power interface device is used to achieve closed-loop interaction of power signals and control signals.

[0011] In some embodiments, the power interface device includes:

[0012] A D / A converter is connected to the real-time simulation device and is used to convert the digital signal generated by the real-time simulation device into an analog signal;

[0013] An analog signal excitation power module is connected to the D / A converter and is used to amplify the signal by a corresponding multiple and transmit it to the controller under test;

[0014] A voltage / current transformer is connected to the analog signal excitation power module and the controller under test and is used to collect the current and voltage signals output by the controller under test respectively;

[0015] An A / D converter is connected to the voltage / current transformer and is used to convert the analog signal back into a digital signal and transmit it back to the real-time simulation device.

[0016] In some embodiments, the high-speed maglev power load model built by the real-time simulation device includes:

[0017] A linear motor model is used to simulate the traction load of a high-speed maglev train;

[0018] A vehicle-mounted battery model is used to simulate the power supply load of a high-speed maglev train;

[0019] A suspension / guide electromagnet model is used to simulate the suspension and guide loads of a high-speed maglev train.

[0020] In some embodiments, the high-speed maglev power load hardware-in-the-loop simulation test platform further includes:

[0021] A monitoring and management module is used to monitor the operation status of the test platform, including data acquisition, data analysis, result display and control operations. The monitoring and management module is connected to the power load simulation module and the controller under test through a communication network.

[0022] An auxiliary test tooling is used to assist in the construction and testing of the test platform.

[0023] In some embodiments, the monitoring and management module includes:

[0024] A data acquisition unit is used to acquire the operation data of the test platform;

[0025] A data analysis unit is used to analyze and process the acquired data;

[0026] A display unit for displaying the operating status and test results of the test platform;

[0027] A control unit for controlling the operation and test process of the test platform.

[0028] This application also provides a method for high-speed maglev power load hardware-in-the-loop simulation test. Using the above-mentioned high-speed maglev power load hardware-in-the-loop simulation test platform, it includes:

[0029] S1. Start the test platform and initialize the controller under test and the power load simulation module;

[0030] S2. According to the test requirements, select the corresponding test scenario and configure the parameters of the real-time simulation device and the power interface device;

[0031] S3. Start the simulation test. The power load simulation module provides the power test environment required for the operation of the controller under test, and performs data acquisition, analysis, and display;

[0032] S4. Monitor the test process and adjust the test parameters or stop the test as needed;

[0033] S5. After the test is completed, save the test data and results for subsequent analysis and processing.

[0034] In some embodiments, the test scenario is a traction system test scenario. The high-speed maglev power load model built by the real-time simulation device includes a long stator linear motor, and the controller under test is a motor control unit and a converter control unit.

[0035] In some embodiments, the test scenario is a suspension and guidance system test scenario. The high-speed maglev power load model built by the real-time simulation device includes an electromagnet, and the controller under test is a suspension and guidance controller.

[0036] In some embodiments, the test scenario is a vehicle-mounted power supply system test scenario. The high-speed maglev power load model built by the real-time simulation device includes a battery and grid power consumption equipment, and the controller under test is a boost chopper.

[0037] Compared with the above background technology, the high-speed maglev power load hardware-in-the-loop simulation test platform provided by this application mainly includes a controller under test and a power load simulation module. The power load simulation module is connected to the controller under test through a power cable and a digital signal line, and the power load simulation module can provide the power test environment required for the operation of the controller under test.

[0038] In the control system of high-speed maglev trains, the testing of the controller is a crucial link to ensure the safe and efficient operation of the trains. Although the traditional signal-level hardware-in-the-loop simulation technology can achieve signal interaction between the control part of the controller and the real-time simulation model, it is limited to small-power signal transmission and cannot meet the requirements of the drive part of the controller for high-power signal transmission. This defect leads to the inability of the existing testing methods to comprehensively verify the performance of the controller in actual operation, especially its performance under high-power working conditions.

[0039] The high-speed maglev power load hardware-in-the-loop simulation test platform provided by this application directly solves the above problems by introducing a power load simulation module, which is connected to the controller under test through power cables and digital signal lines. The power load simulation module can provide the power test environment required for the operation of the controller under test, which means that the test platform can not only transmit control signals, but also achieve the transmission and interaction of high-power signals. This design enables the drive part of the controller to be fully tested in the simulation environment, thus making up for the deficiencies of the existing technology.

[0040] In addition, the introduction of the power load simulation module also realizes real-time online simulation of power characteristics. In the high-speed maglev system, the power characteristics of key electrical equipment such as linear motors, vehicle-mounted batteries, and suspension / guidance electromagnets are crucial for the operation of the trains. Through the power load simulation module, the power characteristics of these key equipment can be simulated and tested in real time in the simulation environment to ensure that the controller can operate stably under various working conditions. This real-time online simulation ability not only improves the efficiency of testing, but also enhances the reliability of test results.

[0041] Combined with the above structure and process description, it can be seen that the high-speed maglev power load hardware-in-the-loop simulation test platform has at least the following beneficial effects: The high-speed maglev power load hardware-in-the-loop simulation test platform realizes high-power signal transmission and real-time online simulation of power characteristics, solves the defect that the signal-level hardware-in-the-loop simulation in the existing technology cannot meet the high-power test requirements of the drive part of the controller, and significantly improves the integrity and accuracy of the testing of the high-speed maglev system controller. Brief Description of the Drawings

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0043] Figure 1 It is a schematic diagram of the high-speed maglev power load hardware-in-the-loop simulation test platform provided by the embodiment of the present application;

[0044] Figure 2 Schematic diagram of the power load simulation module provided by an embodiment of the present application;

[0045] Figure 3 Schematic diagram of the traction system test scenario provided by an embodiment of the present application;

[0046] Figure 4 Schematic diagram of the suspension and guidance system test scenario provided by an embodiment of the present application;

[0047] Figure 5 Schematic diagram of the on-vehicle power supply system test scenario provided by an embodiment of the present application.

[0048] Wherein:

[0049] The high-speed maglev power load hardware-in-the-loop simulation test platform 100,

[0050] the controller under test 1, the power load simulation module 2, the real-time simulation device 21, the power interface device 22, the D / A converter 221, the analog signal excitation power module 222, the voltage / current transformer 223, the A / D converter 224, the linear motor model 2101, the on-vehicle battery model 2102, the suspension / guidance electromagnet model 2103, the power cable 3, and the digital signal line 4. Specific embodiments

[0051] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0052] In order to enable those skilled in the art of the present technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] Please refer to Figure 1 , Figure 1 Schematic diagram of the high-speed maglev power load hardware-in-the-loop simulation test platform provided by an embodiment of the present application.

[0054] In the first specific embodiment, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 provided by the implementation solution of the present application mainly includes the controller under test 1 and the power load simulation module 2. The power load simulation module 2 is connected to the controller under test 1 through the power cable 3 and the digital signal line 4, and the power load simulation module 2 can provide the power test environment required for the operation of the controller under test 1.

[0055] In the control system of high-speed maglev trains, the testing of the controller is a crucial link to ensure the safe and efficient operation of the trains. Although the traditional signal-level hardware-in-the-loop simulation technology can achieve signal interaction between the control part of the controller and the real-time simulation model, it is limited to small-power signal transmission and cannot meet the requirements of the drive part of the controller for high-power signal transmission. This defect leads to the inability of the existing testing methods to comprehensively verify the performance of the controller in actual operation, especially its performance under high-power conditions.

[0056] The high-speed maglev power load hardware-in-the-loop simulation test platform 100 provided by this application directly solves the above problems by introducing a power load simulation module 2, which is connected to the controller under test 1 through a power cable 3 and a digital signal line 4. The power load simulation module 2 can provide the power test environment required for the operation of the controller under test 1, which means that the test platform 100 can not only transmit control signals but also achieve the transmission and interaction of high-power signals. This design enables the drive part of the controller to be fully tested in the simulation environment, thus making up for the deficiencies of the existing technology.

[0057] In addition, the introduction of the power load simulation module 2 also realizes real-time online simulation of power characteristics. In the high-speed maglev system, the power characteristics of key electrical equipment such as linear motors, on-vehicle batteries, and levitation / guidance electromagnets are crucial for the operation of the trains. Through the power load simulation module 2, the power characteristics of these key equipment can be simulated and tested in real time in the simulation environment to ensure the stable operation of the controller under various conditions. This real-time online simulation ability not only improves the testing efficiency but also enhances the reliability of the test results.

[0058] Combined with the above structure and process description, it can be seen that the high-speed maglev power load hardware-in-the-loop simulation test platform 100 has at least the following beneficial effects: The high-speed maglev power load hardware-in-the-loop simulation test platform 100 realizes high-power signal transmission and real-time online simulation of power characteristics, solves the defect that the signal-level hardware-in-the-loop simulation in the existing technology cannot meet the high-power test requirements of the drive part of the controller, and significantly improves the integrity and accuracy of the testing of the high-speed maglev system controller.

[0059] It should be emphasized that in the field of train control system testing, there are significant differences between power-level hardware-in-the-loop simulation and signal-level hardware-in-the-loop simulation. Power-level hardware-in-the-loop simulation focuses on testing the drive part of the controller and its interaction with the actual power load. In a high-speed maglev system, the controller not only sends control signals but also drives power loads (such as linear motors, on-vehicle batteries, levitation / guidance electromagnets, etc.) to achieve the operation of the train. By simulating the actual operation of these power loads, power-level hardware-in-the-loop simulation provides a near-real power environment for the controller, thereby testing the control ability and performance of the controller for power loads during actual operation. This testing method can comprehensively evaluate the performance of the controller in high-power signal transmission and power load control, ensuring its reliability and stability in actual applications.

[0060] Signal-level hardware-in-the-loop simulation mainly focuses on the signal interaction between the control part of the controller and the simulation model. In a train control system, the controller realizes the control of the train by sending and receiving signals. Signal-level hardware-in-the-loop simulation tests the control logic, signal processing ability, response speed, etc. of the controller by simulating the transmission and interaction of these signals. However, this testing method is limited to the transmission of low-power signals and cannot meet the requirements of the drive part of the controller for high-power signal transmission. Therefore, signal-level hardware-in-the-loop simulation cannot comprehensively test the performance of the controller during actual operation, especially its performance under high-power conditions.

[0061] In summary, the main differences between power-level hardware-in-the-loop simulation and signal-level hardware-in-the-loop simulation lie in the different test objects and test contents. Power-level hardware-in-the-loop simulation focuses on the drive part of the controller and its interaction with the actual power load, and can comprehensively test the performance of the controller in high-power signal transmission and power load control. Signal-level hardware-in-the-loop simulation mainly focuses on the signal interaction between the control part of the controller and the simulation model, is limited to the transmission of low-power signals, and cannot meet the requirements of the drive part of the controller for high-power signal transmission. Therefore, in fields with high power control requirements such as high-speed maglev systems, power-level hardware-in-the-loop simulation is of greater significance.

[0062] Please refer to Figure 2 , Figure 2 which is a schematic diagram of the power load simulation module provided by the embodiment of the present application.

[0063] In some embodiments, the power load simulation module 2 includes:

[0064] A real-time simulation device 21 for building a high-speed maglev power load model;

[0065] The power interface device 22 is connected between the controller under test 1 and the real-time simulation device 21, and the power interface device 22 is used to realize the closed-loop interaction of power signals and control signals.

[0066] In this embodiment, the power load simulation module 2 is one of the core components of the high-speed maglev power load hardware-in-the-loop simulation test platform 100. Its main function is to provide a simulated power load environment for the controller under test 1 to comprehensively test the performance of the controller. The power load simulation module 2 includes two key sub-modules: the real-time simulation device 21 and the power interface device 22.

[0067] The real-time simulation device 21 is responsible for building the high-speed maglev power load models, which accurately simulate various power load conditions that the high-speed maglev train may encounter during actual operation. Through the real-time simulation device 21, the test platform can generate load characteristics consistent with the actual operating conditions, thereby providing a highly simulated test environment for the controller under test 1.

[0068] The power interface device 22 is connected between the controller under test 1 and the real-time simulation device 21, and its main function is to realize the closed-loop interaction of power signals and control signals. Specifically, the power interface device 22 converts the digital signals generated by the real-time simulation device 21 into analog signals and amplifies these signals to an appropriate power level for transmission to the controller under test 1. At the same time, the power interface device 22 is also responsible for collecting the current and voltage signals output by the controller under test 1 and converting these analog signals back into digital signals so that the real-time simulation device 21 can adjust the parameters of the simulation model according to these feedback signals to achieve closed-loop control.

[0069] Through this design, the power load simulation module 2 can not only provide accurate power load simulation but also realize real-time signal interaction with the controller under test 1, thus ensuring the accuracy and reliability of the test results. This closed-loop interaction mechanism enables the test platform to dynamically respond to the behavior of the controller under test 1 and provide a more real and comprehensive test environment.

[0070] In some embodiments, the power interface device 22 includes:

[0071] A D / A converter 221, connected to the real-time simulation device 21, for converting the digital signals generated by the real-time simulation device 21 into analog signals;

[0072] An analog signal excitation power module 222, connected to the D / A converter 221, for amplifying the signals by a corresponding multiple and transmitting them to the controller under test 1;

[0073] A voltage / current transformer 223, connected to the analog signal excitation power module 222 and the DUT controller 1, is used to collect the current and voltage signals output by the DUT controller 1 respectively;

[0074] An A / D converter 224, connected to the voltage / current transformer 223, is used to convert the analog signal back into a digital signal and transmit it back to the real-time simulation device 21.

[0075] In this embodiment, the power interface device 22 is a key component connecting the DUT controller 1 and the real-time simulation device 21, and its main function is to realize the closed-loop interaction of power signals and control signals. Specifically, the power interface device 22 includes a D / A converter 221, an analog signal excitation power module 222, a voltage / current transformer 223, and an A / D converter 224. The D / A converter 221 is connected to the real-time simulation device 21, and its function is to convert the digital signal generated by the real-time simulation device 21 into an analog signal. The analog signal excitation power module 222 is connected to the D / A converter 221 and is used to amplify the converted analog signal to an appropriate power level for transmission to the DUT controller 1. The voltage / current transformer 223 is connected to the analog signal excitation power module 222 and the DUT controller 1, and its role is to collect the current and voltage signals output by the DUT controller 1 respectively, so as to achieve accurate monitoring of the controller output. The A / D converter 224 is connected to the voltage / current transformer 223 and is used to convert the collected analog signal back into a digital signal so that the real-time simulation device 21 can perform further processing and adjustment of the simulation model based on these feedback signals.

[0076] Through the collaborative work of the above components, the power interface device 22 can not only convert the digital signal generated by the real-time simulation device 21 into an analog signal suitable for the DUT controller 1, but also feedback the output signal of the DUT controller 1 back to the real-time simulation device 21 to achieve closed-loop control. This closed-loop interaction mechanism ensures the accurate transmission and real-time feedback of signals during the test, thereby improving the accuracy and reliability of the test. In addition, the design of the power interface device 22 enables the test platform to adapt to the test requirements of different power levels, providing a flexible and efficient solution for the controller test of the high-speed maglev system.

[0077] Please refer to Figures 3 to 5 , where Figure 3 is a schematic diagram of the traction system test scenario provided by the embodiment of the present application, Figure 4 is a schematic diagram of the suspension and guidance system test scenario provided by the embodiment of the present application, Figure 5 is a schematic diagram of the on-vehicle power supply system test scenario provided by the embodiment of the present application.

[0078] In some embodiments, the high-speed maglev power load model built by the real-time simulation device 21 includes:

[0079] Linear motor model 2101, used to simulate the traction load of high-speed maglev trains;

[0080] On-board battery model 2102, used to simulate the power supply load of high-speed maglev train;

[0081] The suspension / guiding electromagnet model 2103 is used to simulate the suspension and guiding loads of high-speed maglev trains.

[0082] In this embodiment, the high-speed maglev power load model built by the real-time simulation device 21 covers the key electrical equipment of the high-speed maglev train, specifically including a linear motor model 2101, an onboard battery model 2102, and a suspension / guide electromagnet model 2103. These three models correspond to different functional modules of the train, and are built and tested independently.

[0083] The linear motor model 2101 is mainly used to simulate the traction load of a high-speed maglev train. In actual operation, the linear motor is responsible for providing the power for the train to move forward, and its performance directly affects the acceleration performance and operating efficiency of the train. By building the linear motor model 2101 in the real-time simulation device 21, the operating state of the linear motor under different working conditions can be accurately simulated, providing a simulated traction load environment for the controller under test 1, thereby testing its control performance in actual operation.

[0084] The on-board battery model 2102 is used to simulate the power supply load of the high-speed maglev train. As the auxiliary power supply system of the train, the on-board battery undertakes the important task of supplying power to various devices on the train. By building the on-board battery model 2102 in the real-time simulation device 21, the charging and discharging characteristics of the on-board battery under different load conditions can be simulated, providing a power supply load environment close to the real one for the controller under test 1, so as to test its control strategy and performance under different power supply conditions.

[0085] The suspension / guidance electromagnet model 2103 is mainly used to simulate the suspension and guidance load of the high-speed maglev train. The suspension and guidance system is the core component of the high-speed maglev train, which is responsible for realizing the suspension and guidance functions of the train and ensuring the stability and safety of the train during operation. By building the suspension / guidance electromagnet model 2103 in the real-time simulation device 21, the operating state of the suspension and guidance electromagnet under different working conditions can be accurately simulated, providing a simulated suspension and guidance load environment for the controller under test 1, so as to test its control performance in actual operation.

[0086] These three models are respectively built in the real-time simulation device 21 and independently tested, which can comprehensively simulate the operating states of the high-speed maglev train under different working conditions, providing a highly simulated test environment for the controller under test 1. By testing these three models respectively, it can ensure that the control performance of the controller under test 1 under different load conditions is fully verified, thereby improving its reliability and stability in practical applications.

[0087] In some embodiments, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 further includes:

[0088] A monitoring and management module, which is used to monitor the operating state of the test platform 100, including data acquisition, data analysis, result display, and control operations. The monitoring and management module is connected to the power load simulation module 2 and the controller under test 1 through a communication network.

[0089] In this embodiment, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 further improves the intelligence and automation level of the test platform by introducing a monitoring and management module. The core function of the monitoring and management module is to comprehensively monitor and manage the operating state of the test platform 100 to ensure the stability of the test process and the accuracy of the data. Specifically, the monitoring and management module is connected to the power load simulation module 2 and the controller under test 1 through a communication network, and can collect various types of data during the test process in real time, including power signals, control signals, and the output state of the controller under test, etc.

[0090] The monitoring and management module is not only responsible for data acquisition, but also has a powerful data analysis function. By analyzing the collected data in real time, the monitoring and management module can quickly identify possible abnormal situations during the test process and issue alarms in a timely manner. This data analysis ability is of great significance for optimizing the test process and improving the test efficiency. At the same time, the monitoring and management module also has a result display function, which can display the test data and analysis results in an intuitive way to the test personnel, facilitating them to quickly understand the operating state and test results of the test platform.

[0091] In addition, the monitoring and management module also provides a flexible control operation function. The test personnel can adjust the operating parameters of the test platform through this module, such as modifying the output characteristics of the power load simulation module or adjusting the test scenario of the controller under test. This control function enables the test personnel to flexibly adjust the test conditions according to different test requirements, further improving the versatility and adaptability of the test platform. 1

[0092] In some embodiments, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 further includes:

[0093] A companion test tooling, which is used to assist in the construction and testing of the test platform 100.

[0094] In this embodiment, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 further expands its functions and application scope. By introducing the accompanying test tooling, the flexibility and practicality of the test platform are enhanced. As an important auxiliary tool for the test platform, the accompanying test tooling is mainly used to support the construction and testing processes of the test platform 100 to ensure the smooth progress of the tests.

[0095] The design of the accompanying test tooling takes into account the requirements of the test platform 100 under different test scenarios and provides the necessary mechanical and electrical interfaces, making the construction of the test platform more convenient and efficient. Through the accompanying test tooling, the test personnel can quickly complete the assembly and debugging of the test platform, reduce the test preparation time, and improve the test efficiency. In addition, the accompanying test tooling also has a certain degree of adaptability and can be adjusted and configured according to different test requirements to meet the requirements of various test scenarios.

[0096] During the actual test process, the accompanying test tooling not only provides stable support and connection for the test platform 100 but also can assist in completing some key test operations. For example, when testing the power load simulation module 2, the accompanying test tooling can ensure a stable and reliable connection between the controller under test 1 and the power load simulation module 2, avoiding test errors caused by connection problems. At the same time, when the monitoring and management module performs data acquisition and analysis, the accompanying test tooling can also provide the necessary auxiliary functions to ensure the accuracy and integrity of the data.

[0097] In some embodiments, the monitoring and management module includes:

[0098] A data acquisition unit for acquiring the operation data of the test platform 100;

[0099] A data analysis unit for analyzing and processing the acquired data;

[0100] A display unit for displaying the operation status and test results of the test platform 100;

[0101] A control unit for controlling the operation and test processes of the test platform 100.

[0102] In this embodiment, as an important part of the high-speed maglev power load hardware-in-the-loop simulation test platform 100, the functions of the monitoring and management module are further refined into multiple key units to achieve comprehensive monitoring and management of the test platform. The monitoring and management module includes a data acquisition unit, a data analysis unit, a display unit, and a control unit. These units work together to ensure the efficient operation of the test platform and the accuracy of the test results.

[0103] The data acquisition unit is the basic part of the monitoring and management module, responsible for real-time acquisition of various data generated during the operation of the test platform 100. These data include power signals, control signals, the output status of the DUT controller 1, and the working parameters of the power load simulation module 2, etc. Through high-precision sensors and acquisition devices, the data acquisition unit can ensure that the acquired data is real and accurate, providing a reliable basis for subsequent data analysis and processing.

[0104] The data analysis unit then conducts in-depth analysis and processing on the acquired data. This unit has powerful computing capabilities, can quickly identify abnormal situations in the data, and evaluate the operating status of the test platform. The data analysis unit can not only monitor key parameters during the test process in real time, but also optimize and adjust the test results through preset algorithms and models, thereby improving the efficiency and reliability of the test.

[0105] The display unit is used to visually present the operating status and test results of the test platform 100. Through the graphical interface and real-time data display, testers can clearly understand the operating conditions of the test platform, including changes in power load, the response of the controller, and the switching of test scenarios, etc. The design of the display unit focuses on the user experience, enabling testers to quickly obtain key information and make decisions in a timely manner.

[0106] The control unit is the core part of the monitoring and management module, responsible for precisely controlling the operation and test process of the test platform 100. Testers can set test parameters, start or stop the test, and adjust the test scenario through the control unit. The control unit can flexibly configure the working mode of the test platform according to test requirements to ensure the smooth progress of the test process. In addition, the control unit also has a fault diagnosis and alarm function, which can issue an alarm in a timely manner when an abnormality occurs to ensure the safety of the test.

[0107] This application also provides a high-speed maglev power load hardware-in-the-loop simulation test method, using the above-mentioned high-speed maglev power load hardware-in-the-loop simulation test platform 100. This test method should have all the beneficial technical effects of the above test platform 100, which will not be elaborated here one by one.

[0108] This method realizes the efficient testing and verification of key components of the high-speed maglev system through a series of orderly steps. Specifically, the test method includes: S1. Start the test platform 100 and initialize the DUT controller 1 and the power load simulation module 2.

[0109] First, before the test starts, execute step S1 to start the test platform 100 and perform initialization operations on the DUT controller 1 and the power load simulation module 2. This initialization process ensures that each component of the test platform is in a preset starting state, laying a foundation for the smooth progress of subsequent tests.

[0110] The test method includes: S2. According to the test requirements, select the corresponding test scenario and configure the parameters of the real-time simulation device 21 and the power interface device 22.

[0111] Subsequently, enter step S2. According to the specific test requirements, select the corresponding test scenario and configure the relevant parameters of the real-time simulation device 21 and the power interface device 22. This configuration process is one of the key links of the test method. It enables the test platform to flexibly adjust the simulation environment and test conditions according to different test objectives, so as to meet the diverse test requirements of the high-speed maglev system.

[0112] The test method includes: S3. Start the simulation test. The power load simulation module 2 provides the power test environment required for the operation of the device under test 1, and performs data collection, analysis, and display.

[0113] After the above preparations are completed, enter step S3 to start the simulation test. The power load simulation module 2 begins to provide the required power test environment for the device under test 1. At the same time, the data collection unit of the monitoring and management module starts to collect various types of data during the test process. The data analysis unit performs real-time analysis on the collected data, and the display unit intuitively displays the operating status and test results of the test platform to the test personnel. This stage is the core execution stage of the test method. Through the interaction between the power load simulation module 2 and the device under test 1, a comprehensive test of the controller performance is achieved.

[0114] The test method includes: S4. Monitor the test process and adjust the test parameters or stop the test as needed.

[0115] Next is step S4. The test personnel monitor the test process in real time through the control unit of the monitoring and management module. If necessary, the test personnel can adjust the test parameters according to the real-time situation of the test or stop the test when necessary. This monitoring and adjustment process ensures that the test can be carried out under safe and controllable conditions, and at the same time improves the flexibility and adaptability of the test.

[0116] The test method includes: S5. After the test is completed, save the test data and results for subsequent analysis and processing.

[0117] Finally, in step S5, after the test is completed, the monitoring and management module saves the data and analysis results collected during the test process. These data and results provide an important basis for subsequent in-depth analysis and processing. The test personnel can comprehensively evaluate the performance of the device under test 1 based on the saved information, so as to provide strong support for the optimization and improvement of the high-speed maglev system.

[0118] Through the above steps, the high-speed maglev power load hardware-in-the-loop simulation test method provided by this application not only realizes the efficient testing of key components of the high-speed maglev system, but also improves the reliability and adaptability of the test through flexible test scenario selection and real-time monitoring and adjustment. This method provides important technical support for the research and development and optimization of the control system of high-speed maglev trains.

[0119] When the test method is combined with the test platform 100, the real-time simulation device 21 is used to build the key electrical equipment load models of the high-speed maglev train, specifically including the linear motor model 2101, the on-vehicle battery model 2102, and the suspension / guide electromagnet model 2103. Through the power interface device 22, the real-time simulation device 21, and the built load models, it is possible to accurately and stably simulate the key electrical equipment loads of a variety of high-speed maglev systems. According to different test requirements, the test platform 100 can switch test scenarios, thereby realizing the testing of a variety of controllers. The present invention solves the problem that high-power signal transmission cannot be achieved during the controller drive simulation test, improves the test accuracy, enhances the authenticity of the simulation test, and is conducive to troubleshooting problems that occur during the test and verifying technical measures.

[0120] Traditional signal-level hardware-in-the-loop simulation can only achieve low-power signal transmission between the control part of the controller and the real-time simulation model, and cannot meet the high-power signal transmission requirements of the drive part of the controller. However, a truly complete controller test not only includes the test of the control board, but also should cover the tests of parts such as the drive and power circuits. In addition, existing test platforms focus more on the testing of traction motor controllers and do not support multiple controller test scenarios, making it difficult to meet the comprehensive simulation test verification requirements of high-speed maglev control, electromagnetics, etc.

[0121] In view of the above problems, the present invention designs a power-level hardware-in-the-loop simulation test platform 100, solves the problem that the power characteristics of high-speed maglev loads (such as linear motors, on-vehicle batteries, electromagnets) cannot be simulated in real time online, and realizes high-power simulation tests of the controller and its drive. This innovative design not only makes up for the deficiencies of the existing technology, but also provides a more efficient and reliable solution for the comprehensive testing of high-speed maglev systems.

[0122] In some embodiments, the test scenario is a traction system test scenario, and the high-speed maglev power load model built by the real-time simulation device 21 includes a long stator linear motor, and the controller under test 1 is a motor control unit and a converter control unit.

[0123] In this embodiment, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 is specifically designed and optimized for the traction system test scenario. According to the conventional architecture of the high-speed maglev traction system, the test scenario is provided, including an input switch cabinet, an input transformer, an output transformer, and an output switch cabinet. The simulated load is a long stator linear motor, and the objects under test are the motor control unit and the converter control unit. These components together constitute a complete traction system simulation environment for simulating the traction load characteristics of a high-speed maglev train during actual operation.

[0124] As the core power part of a high-speed maglev train, the performance of the traction system is directly related to the acceleration, operation efficiency, and safety of the train. Therefore, accurately testing the controller of the traction system is a key link to ensure the reliable operation of the train. In this test scenario, the controller under test 1 includes a motor control unit and a converter control unit, and these two control units are respectively responsible for the operation control of the traction motor and the power conversion control of the converter. Through the traction system model built by the real-time simulation device 21, a highly simulated test environment can be provided for these controllers, enabling them to conduct performance verification under simulated load conditions.

[0125] During the test, the real-time simulation device 21 interacts with the controller under test 1 through the power interface device 22 to simulate the operating states of the traction system under different working conditions. This interaction not only includes the transmission of control signals but also involves the real-time feedback of power signals, thereby realizing a comprehensive test of the traction system controller. In this way, the test platform 100 can accurately evaluate the performance of the controller under various complex working conditions, providing strong support for the optimized design and reliability verification of the high-speed maglev train traction system.

[0126] In some embodiments, the test scenario is a levitation and guidance system test scenario, and the high-speed maglev power load model built by the real-time simulation device 21 includes an electromagnet, and the controller under test 1 is a levitation and guidance controller.

[0127] In this embodiment, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 is specifically configured for the levitation and guidance system test scenario. Designed according to the minimum unit of the high-speed maglev levitation and guidance system, the object under test is the levitation and guidance controller. The power supply is used to simulate a 440V DC power grid on the input side, and the main simulated load on the output side is an electromagnet. This configuration accurately simulates the electrical environment and load characteristics of the high-speed maglev train levitation and guidance system during actual operation.

[0128] The suspension and guidance system is one of the key technologies of high-speed maglev trains. Its main function is to achieve the suspension and guidance control of the train through electromagnetic force, thus ensuring the stability and safety of the train during operation. As the core component of this system, the suspension and guidance controller is responsible for precisely controlling key loads such as electromagnets to maintain the suspension height and running direction of the train. Therefore, the performance test of the suspension and guidance controller is crucial.

[0129] In the test scenario of the suspension and guidance system, a stable input power supply is provided to the suspension and guidance controller by simulating a 440V DC power grid, and at the same time, the output performance of the controller is tested by simulating the electromagnet load. This simulation environment can highly reproduce the working conditions of the suspension and guidance system during actual operation, enabling the tested controller 1 - the suspension and guidance controller to be tested under near-real conditions. Through the power interface device 22, a closed-loop interaction of power signals and control signals is achieved between the real-time simulation device 21 and the suspension and guidance controller, ensuring the accuracy and reliability of the test process.

[0130] In addition, the test platform 100 can collect and analyze the operation data of the suspension and guidance controller in real time during the test, and evaluate and optimize the test results through the monitoring and management module. This highly simulated test environment can not only verify the performance of the suspension and guidance controller under different working conditions, but also provide important data support for the optimized design of the system. In this way, the test platform 100 provides a powerful tool for the research and development and verification of the suspension and guidance system of high-speed maglev trains, ensuring the reliability and safety of the system.

[0131] In some embodiments, the test scenario is a vehicle-mounted power supply system test scenario. The high-speed maglev power load model built by the real-time simulation device 21 includes a battery and grid-powered equipment, and the tested controller 1 is a boost chopper.

[0132] In this embodiment, the high-speed maglev power load hardware-in-the-loop simulation test platform 100 is specifically designed for the vehicle-mounted power supply system test scenario. The test scenario is provided according to the conventional architecture of the high-speed maglev vehicle-mounted power supply system. The object under test is a boost chopper. The power supply is used on its input side to simulate a linear generator and a power rail, and the main simulated loads on its output DC side (440V) are a battery and grid-powered equipment (mainly the suspension and guidance controller). This configuration precisely simulates the electrical environment and load characteristics of the high-speed maglev train vehicle-mounted power supply system during actual operation.

[0133] The on-vehicle power supply system is an important part of the high-speed maglev train. Its main function is to provide stable power supply for various devices on the train (such as the suspension controller, traction system auxiliary equipment, passenger facilities, etc.). As the core component of the on-vehicle power supply system, the boost chopper is responsible for boosting the electrical energy provided by the linear generator and the power rail to meet the power consumption requirements of on-vehicle devices. Therefore, the performance test of the boost chopper and its control unit is crucial.

[0134] In the test scenario of the on-vehicle power supply system, the real-time simulation device 21 provides stable electrical energy input for the boost chopper by simulating the input power sources of the linear generator and the power rail. At the same time, by simulating the battery and grid electrical equipment as the output load, the output performance of the boost chopper under different working conditions is tested. This simulation environment can highly reproduce the working conditions of the on-vehicle power supply system during actual operation, enabling the tested controller 1 - the boost chopper control unit to be tested under near-real conditions. Through the power interface device 22, a closed-loop interaction of power signals and control signals is achieved between the real-time simulation device 21 and the boost chopper control unit, ensuring the accuracy and reliability of the test process.

[0135] In addition, the test platform 100 can collect and analyze the operation data of the boost chopper control unit in real time during the test, and evaluate and optimize the test results through the monitoring and management module. This highly simulated test environment can not only verify the performance of the boost chopper control unit under different working conditions, but also provide important data support for the optimized design of the system. In this way, the test platform 100 provides a powerful tool for the research and verification of the on-vehicle power supply system of the high-speed maglev train, ensuring the reliability and stability of the system.

[0136] In the high-speed maglev power load hardware-in-the-loop simulation test platform 100 and method of the present application, the diversified design of the test scenario is one of its core advantages. The test platform can flexibly switch the test scenario according to different electrical equipment loads in the high-speed maglev system, so as to achieve targeted testing of various controllers. Specifically, the test platform focuses on three key subsystems of the high-speed maglev system: the traction system, the on-vehicle power supply system, and the suspension and guidance system, and builds a dedicated controller test environment for each system. This design not only improves the flexibility of the test, but also ensures the accuracy and reliability of the test results, providing strong support for the comprehensive verification of the high-speed maglev system.

[0137] It should be noted that many components mentioned in the present application are common standard components or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0138] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0139] The above has introduced in detail the high-speed maglev power load hardware-in-the-loop simulation test platform and method provided by this application. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A high-speed maglev power load hardware-in-the-loop simulation test platform, characterized in that: include: The controller under test; The power load simulation module is connected to the controller under test through a power cable and a digital signal line. The power load simulation module can provide the power test environment required for the operation of the controller under test.

2. The high-speed maglev power load hardware-in-the-loop simulation test platform according to claim 1 is characterized in that: The power load simulation module comprises: Real-time simulation device for building high-speed maglev power load model; A power interface device is connected between the controller under test and the real-time simulation device, and is used to realize closed-loop interaction of power signals and control signals.

3. The high-speed maglev power load hardware-in-the-loop simulation test platform according to claim 2 is characterized in that: The power interface device comprises: A D / A converter connected to the real-time simulation device and used to convert the digital signal generated by the real-time simulation device into an analog signal; An analog signal excitation power module, connected to the D / A converter, for amplifying the signal by a corresponding multiple and transmitting it to the controller under test; A voltage / current transformer, connected to the analog signal excitation power module and the controller under test, and used to respectively collect the current and voltage signals output by the controller under test; The A / D converter is connected to the voltage / current transformer and is used to convert the analog signal into a digital signal and transmit it back to the real-time simulation device.

4. The high-speed maglev power load hardware-in-the-loop simulation test platform according to claim 2 is characterized in that: The high-speed maglev power load model constructed by the real-time simulation device includes: Linear motor model, used to simulate the traction load of high-speed maglev train; Onboard battery model, used to simulate the power supply load of high-speed maglev train; The suspension / guidance electromagnet model is used to simulate the suspension and guidance loads of high-speed maglev trains.

5. The high-speed maglev power load hardware-in-the-loop simulation test platform according to claim 1 is characterized in that: Also includes: A monitoring and management module, used for monitoring the operating status of the test platform, including data acquisition, data analysis, result display and control operations, wherein the monitoring and management module is connected to the power load simulation module and the controller under test via a communication network; Test tooling is used to assist in the construction and testing of the test platform.

6. The high-speed maglev power load hardware-in-the-loop simulation test platform according to claim 5 is characterized in that: The monitoring management module includes: A data acquisition unit, used to collect the operating data of the test platform; A data analysis unit, used for analyzing and processing the collected data; A display unit, used to display the operating status and test results of the test platform; Control unit, used to control the operation and testing process of the test platform.

7. A high-speed maglev power load hardware-in-the-loop simulation test method, using the high-speed maglev power load hardware-in-the-loop simulation test platform as claimed in any one of claims 1 to 6, characterized in that: include: S1. Start the test platform and initialize the controller under test and the power load simulation module; S2. Select the corresponding test scenario according to the test requirements and configure the parameters of the real-time simulation device and the power interface device; S3, start the simulation test, the power load simulation module provides the power test environment required for the controller under test to collect, analyze and display data; S4. Monitor the test process and adjust test parameters or stop the test as needed; S5. After the test is completed, save the test data and results for subsequent analysis and processing.

8. The high-speed maglev power load hardware-in-the-loop simulation test method according to claim 7 is characterized in that: The test scenario is a traction system test scenario, the high-speed magnetic levitation power load model constructed by the real-time simulation device includes a long-stator linear motor, and the controller under test is a motor control unit and a converter control unit.

9. The high-speed maglev power load hardware-in-the-loop simulation test method according to claim 7, characterized in that: The test scenario is a suspension guidance system test scenario, the high-speed magnetic levitation power load model constructed by the real-time simulation device includes an electromagnet, and the controller under test is a suspension guidance controller.

10. The high-speed maglev power load hardware-in-the-loop simulation test method according to claim 7, characterized in that: The test scenario is an on-board power supply system test scenario, the high-speed maglev power load model constructed by the real-time simulation device includes batteries and power grid equipment, and the controller under test is a boost chopper.

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