Parameter detection system of permanent magnet synchronous motor

Abstract

The utility model belongs to the technical field of motor detection, and particularly relates to a parameter detection system of a permanent magnet synchronous motor, which comprises a code scanning device, a motor driving module, a resolver angle reading module, an LCR detection device and a processor device, and is characterized in that the code scanning device, the motor driving module, the resolver angle reading module and the LCR detection device are all connected with the processor device; the code scanning equipment is used for reading a nameplate code of the permanent magnet synchronous motor to be detected; the LCR detection equipment is used for detecting a resistance value and an inductance value of the permanent magnet synchronous motor to be detected; the processor device can control the permanent magnet synchronous motor to be tested to rotate through the motor driving module. According to the utility model, the scanning gun is adopted to directly read the nameplate code, so that the problem that errors may be generated when a worker manually inputs the nameplate code is solved, the problem of inaccurate control of the rotation angle of the motor caused by manual control of a power supply is solved, and the problem that wrong data is generated during reading is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor detection, and particularly relates to a parameter detection system for a permanent magnet synchronous motor. Background Art

[0002] With the popularization of new energy vehicles, the demand of consumers for new energy vehicles has gradually increased. Therefore, the demand for motors has also gradually increased. The large-scale production of motors has put forward new detection requirements for the entire production line. In the traditional motor production and detection process, workers mostly use various equipment for manual detection and then count the data, which inevitably leads to problems such as data entry errors and parameter reading errors. Summary of the Invention

[0003] The utility model provides a parameter detection system for a permanent magnet synchronous motor to solve the technical problems mentioned in the background art.

[0004] The technical solution of the utility model is as follows: A parameter detection system for a permanent magnet synchronous motor, comprising: a code scanning device, a motor driving module, a resolver angle reading module, an LCR detection device, and a processor device. The code scanning device, the motor driving module, the resolver angle reading module, and the LCR detection device are all connected to the processor device;

[0005] The code scanning device is used to read the nameplate code of the permanent magnet synchronous motor to be tested;

[0006] The LCR detection device is used to detect the resistance value and inductance value of the permanent magnet synchronous motor to be tested;

[0007] The processor device can control the rotation of the permanent magnet synchronous motor to be tested through the motor driving module, read the resolver value of the resolver sensor in the permanent magnet synchronous motor to be tested through the resolver angle reading module, and determine the number of pole pairs of the permanent magnet synchronous motor to be tested and the installation deviation of the resolver sensor according to the resolver value.

[0008] Further, it further comprises: a current reading device, the current reading device is connected to the processor device, and the current reading device is used to read the current of the permanent magnet synchronous motor to be tested.

[0009] Further, the current reading device is a current clamp.

[0010] Further, the code scanning device is a barcode scanner gun.

[0011] Further, the processor device is an industrial personal computer.

[0012] Further, the motor drive module includes: a microcontroller module, a communication module, and three gate drive modules. All three of the three-pole drive modules are connected to the microcontroller module. The microcontroller module is communicatively connected to the processor device through the communication module. The three three-pole drive modules are respectively connected to the three-phase input ends of the permanent magnet synchronous motor to be tested.

[0013] Further, the gate drive module includes: a gate driver and two IGBT modules. The two IGBT modules are respectively connected to the gate driver.

[0014] Further, the gate driver uses an FAN7385 chip.

[0015] Further, the microcontroller module uses an MCU.

[0016] Further, the resolver angle reading module uses an AD2S1210 chip.

[0017] Advantages of the present utility model: The present utility model uses a barcode scanner to directly read the nameplate code, solving the problem that errors may occur when personnel manually input the nameplate code.

[0018] The present utility model uses a motor drive module to control the motor and reads the resolver angle through a resolver angle reading module, solving the problems of inaccurate control of the motor rotation angle caused by manual control of the power supply by humans and the problem of incorrect data reading.

[0019] The present utility model adopts the scheme of directly connecting an LCR detection device to an industrial control computer to prevent staff from misreading inductance and resistance parameters.

[0020] The present utility model can automatically record the changes in the no-load speed and current of the motor, and can automatically adjust and control the current and voltage of the motor, avoiding damage to the motor or abnormal parameters caused by workers not timely changing the power supply parameters. Description of the Drawings

[0021] Figure 1 is the structural block diagram of the present utility model.

[0022] Figure 2 is the circuit diagram of the motor drive module in the present utility model.

[0023] Figure 3 is the circuit diagram of the resolver angle reading module in the present utility model. Detailed Embodiments

[0024] To enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the embodiments of the present utility model, Figure 1 is a structural schematic diagram provided according to the specific structure of a parameter detection system for a permanent magnet synchronous motor of the present utility model. As Figure 1 shown, the present utility model includes:

[0026] A barcode scanning device 2, a motor drive module 3, a resolver angle reading module 4, an LCR detection device 5, and a processor device 1. The barcode scanning device 2, the motor drive module 3, the resolver angle reading module 4, and the LCR detection device 5 are all connected to the processor device 1. Among them, the processor device 1 can adopt an industrial control computer.

[0027] The barcode scanning device 2 is used to read the nameplate code of the permanent magnet synchronous motor to be tested. Specifically, the barcode scanning device 2 is a barcode scanner.

[0028] The LCR detection device 5 is used to detect the resistance value and inductance value of the permanent magnet synchronous motor to be tested.

[0029] The processor device 1 can control the rotation of the permanent magnet synchronous motor to be tested through the motor drive module 3, read the resolver value of the resolver sensor in the permanent magnet synchronous motor to be tested through the resolver angle reading module 4, and determine the number of pole pairs of the permanent magnet synchronous motor to be tested and the installation deviation of the resolver sensor according to the resolver value.

[0030] In an embodiment of the present utility model, the present utility model further includes: a current reading device 6. The current reading device 6 is connected to the processor device 1, and the current reading device 6 is used to read the current of the permanent magnet synchronous motor to be tested. Among them, the current reading device 6 is a current clamp.

[0031] In an embodiment of the present utility model, as Figure 2 shown, the motor drive module 3 includes: a microcontroller module, a communication module, and three gate drive modules. The three three-pole drive modules are all connected to the microcontroller module. The microcontroller module communicates with the processor device 1 through the communication module. The three three-pole drive modules are respectively connected to the three-phase input terminals of the permanent magnet synchronous motor to be tested.

[0032] Among them, the gate drive module includes: a gate driver and two IGBT modules, and the two IGBT modules are respectively connected to the gate driver.

[0033] Specifically, the gate driver uses the FAN7385 chip. The microcontroller module uses an MCU, and the model is: STM32G431RBT6.

[0034] In an embodiment of the present invention, as Figure 3 shown, the resolver angle reading module 4 can specifically use the AD2S1210 chip.

[0035] In an embodiment of the present invention, the processor module is connected to a display screen, a start button, and a plurality of indicator lights. Among them, the indicator lights are used to indicate the test items and the test progress.

[0036] The test process of the present invention is as follows:

[0037] The staff holds a barcode scanner to scan the QR code on the motor nameplate to read the basic parameters of the motor. Among them, the basic data such as the production date, production batch, working voltage, and working current are displayed on the display screen and saved and uploaded to the cloud system. At the same time, the system will automatically pull the test range parameters matching the motor from the cloud and display them on the screen, and automatically adjust the supply voltage and maximum output current of the power supply to meet the rated working requirements of the motor, and protect the equipment when the motor works abnormally or is short-circuited.

[0038] The staff connects the three phases U, V, and W of the motor to the three phases of the motor drive module 3, and connects the resolver sensor of the motor to the resolver angle reading module 4, and presses the start test button.

[0039] Enter the test process. Test item 1: Test the number of pole pairs. Through the motor drive module 3, slowly rotate the motor one week, and then read the angle value of the resolver sensor through the resolver angle reading module 4. The obtained angle value is divided by 360 degrees to get the number of pole pairs. Repeat three times. When the three results are the same, it is correct. The green light turns on and the result is displayed on the screen. Otherwise, the red light turns on to prompt the staff of the error, and the error information is recorded in the system. Exit the automatic test process and turn off the power. Wait for the staff to remove the motor. Test item 2: Test the inductance value and resistance value of the motor. Test three times continuously. The three results are qualified within the fluctuation range, and the parameters are displayed on the screen. The parameter ranges of different models of motors are stored in the cloud database. The green light turns on. Otherwise, the red light turns on to prompt the staff of the error, and the error information is recorded in the system. Exit the automatic test process and turn off the power. Wait for the staff to remove the motor. Test item 3: Test the installation deviation value of the resolver sensor of the motor. Let the motor rotate at different preset angles through the motor drive module 3, read the angle value of the resolver sensor through the resolver angle reading module 4, compare the tested rotation angle with the preset angle to determine the installation deviation value. Test three times continuously. After three tests, save the resolver sensor deviation value to the cloud and display it on the monitor. The green light turns on. Otherwise, the red light turns on to prompt the staff of the error, and the error information is recorded in the system. Exit the automatic test process and turn off the power. Wait for the staff to remove the motor.

[0040] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A parameter detection system for a permanent magnet synchronous motor, characterized in that, Including: A barcode scanning device (2), a motor drive module (3), a resolver angle reading module (4), an LCR detection device (5) and a processor device (1), wherein the barcode scanning device (2), the motor drive module (3), the resolver angle reading module (4), and the LCR detection device (5) are all connected to the processor device (1); The barcode scanning device (2) is used to read the nameplate code of the permanent magnet synchronous motor to be tested; The LCR detection device (5) is used to detect the resistance value and inductance value of the permanent magnet synchronous motor to be tested; The processor device (1) can control the rotation of the permanent magnet synchronous motor to be tested through the motor drive module (3), read the resolver value of the resolver sensor in the permanent magnet synchronous motor to be tested through the resolver angle reading module (4), and determine the number of pole pairs of the permanent magnet synchronous motor to be tested and the installation deviation of the resolver sensor according to the resolver value.

2. The parameter detection system of the permanent magnet synchronous motor according to claim 1, characterized in that, It further includes: a current reading device (6), the current reading device (6) is connected to the processor device (1), and the current reading device (6) is used to read the current of the permanent magnet synchronous motor to be tested.

3. The parameter detection system of the permanent magnet synchronous motor according to claim 2, wherein The current reading device (6) is a current clamp.

4. The parameter detection system of the permanent magnet synchronous motor according to claim 1, characterized in that, The barcode scanning device (2) is a barcode scanner.

5. The parameter detection system for the permanent magnet synchronous motor according to claim 1, characterized in that, The processor device (1) is an industrial control computer.

6. The parameter detection system of the permanent magnet synchronous motor according to claim 1, characterized in that, The motor drive module (3) includes: a microcontroller module, a communication module and three gate drive modules. The three three-pole drive modules are all connected to the microcontroller module. The microcontroller module communicates with the processor device (1) through the communication module. The three three-pole drive modules are respectively connected to the three-phase input terminals of the permanent magnet synchronous motor to be tested.

7. The parameter detection system of the permanent magnet synchronous motor according to claim 6, characterized in that, The gate drive module includes: a gate driver and two IGBT modules. The two IGBT modules are respectively connected to the gate driver.

8. The parameter detection system of the permanent magnet synchronous motor according to claim 7, characterized in that, The gate driver uses an FAN7385 chip.

9. The parameter detection system of the permanent magnet synchronous motor according to claim 6, characterized in that, The microcontroller module uses an MCU.

10. The parameter detection system for the permanent magnet synchronous motor according to claim 1, characterized in that, The resolver angle reading module (4) uses an AD2S1210 chip.

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