Test platform of drive system of electric vehicle motor

A technology of motor drive system and test platform, which is applied in the direction of motor generator test, electrical test/monitoring, general control system, etc., and can solve problems such as inapplicability of new motors

Pending Publication Date: 2017-05-31
QUANZHOU INST OF EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the uncertainty of computer simulation technology and the inapplicability of traditional test methods for new motors, it is of great significance to design a test system for high-performance drive motors and their controllers for electric vehic

Method used

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  • Test platform of drive system of electric vehicle motor
  • Test platform of drive system of electric vehicle motor
  • Test platform of drive system of electric vehicle motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Electric vehicle motor drive system test platform of the present invention comprises hardware part and software part, such as figure 1 As shown, the hardware part includes an industrial computer, a dynamometer system, a first voltage / current sampling circuit, a torque / speed sampling circuit and a power simulation system. This software part is built in the industrial computer, including road condition simulation system, load simulation tracking control system and performance analysis system based on model predictive control (MPC);

[0057] The industrial computer includes user management system, control system, data acquisition system and Matlab simulation system; the dynamometer system includes dSPACE semi-physical simulation system, three-phase voltage regulator, Back-To-Back converter, load motor ( permanent magnet synchronous motor), a torque / speed sensor and a second voltage / current sampling circuit;

[0058] The user management system dynamically displays various ...

Embodiment 2

[0093] The electric vehicle motor drive system test platform of the present invention differs from the first embodiment only in that a triple three-phase bidirectional DC-DC converter is added, and the inverting output terminal of the Back To Back converter is no longer connected to Three-phase AC grid.

[0094] like figure 2 As shown, the triple three-phase bidirectional DC-DC converter is respectively connected to the power simulation system, the inverting output terminal of the Back To Back converter, the voltage input terminal of the motor driver of the object under test and the control system , used to feed back energy to the input end of the BackToBack converter or the triple three-phase bidirectional DC-DC converter for closed-loop control when the vehicle motor or the load motor of the measured object is braked , to achieve the purpose of high efficiency and energy saving.

[0095] like image 3 As shown, a motor with the same power level as the measured object’s a...

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PUM

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Abstract

The invention provides a test platform of a drive system of an electric vehicle motor. The test platform comprises an industrial personal computer, a dynamometer system, a voltage/current sampling circuit, a torque/rotating speed sampling circuit and a power supply simulation system. When the test platform works, a road situation simulation system is used for reproducing real acceleration and deceleration conditions of vehicle driving; a load simulation, tracking, and controlling system based on model prediction control is used for realizing rapid response and precise tracking and controlling on load simulation by the dynamometer system; and then a performance analysis system is used for realizing comprehensive performance testing and analysis of the motor drive system. The test platform provided by the invention is capable of detecting the motor performance in real time to obtain data needed by drive motor studying and developing timely and effectively, so that the research and development time of the drive motor can be shortened. Therefore, the test platform plays an important role in leading standardized and information development of motor testing.

Description

technical field [0001] The invention belongs to the technical field of new energy vehicles, and in particular relates to a test platform for a motor drive system of an electric vehicle. Background technique [0002] In the "Thirteenth Five-Year Plan", my country proposed to implement a new energy vehicle promotion plan to improve the industrialization level of electric vehicles. This year, as the first year of the "13th Five-Year Plan", China's new energy vehicle industry has entered the acceleration stage from the initial stage, and the development of electric vehicles has also ushered in the best opportunity. [0003] The driving motor and its control system are the heart of electric vehicles. The performance it exhibits directly affects the energy efficiency, driving distance, speed, acceleration performance and cost of new energy vehicles. High-performance automotive motors and their drives are tested The system is an effective means of evaluating the characteristic par...

Claims

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Application Information

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IPC IPC(8): G01R31/34G05B17/02G05B23/02
CPCG05B17/02G05B23/0213G01R31/34
Inventor 汪凤翔柯栋梁张桢滨于新红张少煌梅雪竹
Owner QUANZHOU INST OF EQUIP MFG
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