A Simulator of Voltage Response Permanent Magnet Synchronous Motor and Its Driving System

Abstract

The invention provides a voltage responding-type permanent magnet synchronous machine and a simulator of a driving system of the voltage responding-type permanent magnet synchronous machine. The voltage responding-type permanent magnet synchronous machine comprises at least two DC / AC power electronic converters, an electric impedance network, a direct current supply, a driving behavior processor,a motor behavior processor, a current control link and a voltage control link; the DC / AC power electronic converters are used for simulating the response of the driving system to incoming current of stator windings of the permanent magnet synchronous machine and the response of the permanent magnet synchronous machine to port voltage of stator current on a circuit layer separately; the driving behavior processor is used for describing electrical behavior characteristics of the driving system; the motor behavior processor is used for describing electrical and mechanical behavior features of thepermanent magnet synchronous machine. By means of the voltage responding-type permanent magnet synchronous machine, the response of the driving system to the incoming current of the stator windings of the permanent magnet synchronous machine and the response of the permanent magnet synchronous machine to the port voltage of the incoming current can be effectively simulated when the driving systemdrives the permanent magnet synchronous machine, full-electrification motor driving testing is achieved, and the testing efficiency and safety are improved.

Description

technical field [0001] The invention relates to the technical fields of power electronics and motors, in particular to a voltage-responsive permanent magnet synchronous motor and a simulator for its drive system. Background technique [0002] Permanent magnet synchronous motor (Permanent Magnet Synchronous Machine, PMSM) and its supporting drive system are widely used in wind power generation, industrial control, electric vehicles and other important fields of electric energy conversion and electric drive. In these applications, the power class and power density of permanent magnet synchronous motors are increasing, and the load characteristics are becoming more and more complex. During design, development and factory commissioning, it is often necessary to conduct a series of functional and reliability tests and verifications on the permanent magnet synchronous motor and its drive system. [0003] The traditional permanent magnet synchronous motor test method, in addition ...

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Problems solved by technology

[0004] 1. It is difficult to simulate some complex, highly dynamic and long-term load torque characteristics for the traction motor system;

[0005] 2. The parameters of the test system, especially the motor characteristics, are difficult to change freely;

[0006] 3. The mechanical link greatly increases the loss of the test system, and brings problems such as test safety and accuracy

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