Hardware-in-loop simulation testing system and method based on power level virtual motor

A simulation test, power level technology, applied in the direction of test/monitoring control system, electrical test/monitoring, general control system, etc., can solve the problem that the motor ripple current cannot be truly restored, and the control characteristics and performance of the motor controller cannot be truly reflected, etc. problem, to achieve the effect of improving current tracking bandwidth, reducing secondary interference, and high safety redundancy

Inactive Publication Date: 2020-01-31
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing virtual motors are composed of a simple three-phase bridge + inductor. This structure can only simulate the fundamental wave current of the motor, but cannot truly restore the ripple current of the motor, and it cannot truly reflect the control characteristics and characteristics of the motor controller. performance

Method used

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  • Hardware-in-loop simulation testing system and method based on power level virtual motor
  • Hardware-in-loop simulation testing system and method based on power level virtual motor
  • Hardware-in-loop simulation testing system and method based on power level virtual motor

Examples

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Embodiment 1

[0043] as attached figure 1 As shown, a hardware-in-the-loop simulation test system based on a power stage virtual motor includes an isolated AC / DC rectifier module 1, an isolated DC / DC module 2, a power stage virtual motor 3, a motor controller under test 4 and an upper Machine 5, characterized in that the power stage virtual motor includes a port current simulation module 31, a resolver / temperature signal simulation module 32, and a virtual motor real-time control system 33. After the AC power is connected to the system, it is rectified by the isolated AC / DC rectifier module 1 and then converted into a stable first-level DC power supply, which supplies power for the isolated DC / DC module 2 and the power stage virtual motor 3. After being rectified by the isolated DC / DC module 2 The converted secondary DC power supply supplies power to the motor controller 4 under test, and the host computer 5 provides torque commands for the motor controller 4 under test according to the veh...

Embodiment 2

[0049] This embodiment provides a hardware-in-the-loop simulation test method based on a power-level virtual motor, including the following steps:

[0050] A. After the AC power is connected to the system, it is rectified by the isolated AC / DC rectifier module 1 and then converted into a stable DC power supply, which supplies power for the isolated DC / DC module 2 and the power stage virtual motor 3. After being rectified by the isolated DC / DC module 2 The converted secondary DC power supplies power to the motor controller 4 under test;

[0051] B. The upper computer 5 runs the power battery model, vehicle dynamics model, working conditions and driver model, and provides man-machine interface and data recording functions. The power battery model provides voltage commands for the isolated DC / DC module 2 to simulate driving The battery voltage changes during the process, the vehicle dynamics model provides load torque or speed constraint parameters for the power stage virtual mot...

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Abstract

The invention relates to the technical field relevant to simulation and testing of an electric automobile electric driving system, in particular to a hardware-in-loop simulation testing system and method based on a power level virtual motor. The system structurally comprises an isolation type AC / DC rectification module (1), an isolation type DC / DC module (2), the power level virtual motor (3), a tested motor controller (4) and an upper computer (5), wherein the power level virtual motor comprises a port current simulation module (31), a rotary transformer / temperature signal simulation module (32) and a virtual motor real-time control system (33). The hardware-in-loop simulation testing system and method based on the power level virtual motor have the advantages that the work current and fault states of the motor can be effectively restored; the work performance and characteristics of the motor controller and the motor under the complete automobile work condition are tested and verified; important significance is realized on the design and performance evaluation of the motor controller and the motor; and the testing system and method can also be applicable to various fields such asweapon equipment, aerospace and mechanical electronics.

Description

technical field [0001] The invention relates to the related technical field of simulation and testing of an electric drive system of an electric vehicle, in particular to a hardware-in-the-loop simulation testing system and method based on a power-level virtual motor. Background technique [0002] In the past two decades, with the enhancement of people's awareness of environmental protection and the development of key technologies, electric vehicle technology has achieved rapid development, and electric vehicles have gradually become popular all over the world. As one of the core components of electric vehicles, vehicle drive motors and controllers play a very important role in electric vehicles. It is directly related to the driving range, vehicle performance and reliability of electric vehicles. Therefore, in electric vehicles During the R&D process of automobiles, core components need to undergo multiple rounds of testing and verification from design to loading. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02G05B23/02
CPCG05B17/02G05B23/0208G05B23/021
Inventor 宋强李易庭赵嗣芳王冠峰王伟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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