Simulation system of voltage response type three-phase permanent magnet synchronous motor

Abstract

The invention provides a simulation system of a voltage response type three-phase permanent-magnet synchronous motor. The simulation system comprises a three-phase DC / AC electric and electronic converter, a direct-current power supply port, a motor behavior processor and a voltage control link. The three-phase DC / AC electric and electronic converter is used for simulating port voltage response ofthe three-phase permanent-magnet synchronous motor during current inputting and performs electric energy exchange with an external motor driving system. The motor behavior processor is used for describing the electrical and mechanical behavior characteristics of the three-phase permanent-magnet synchronous motor. The voltage control link is used for using a permanent-magnet synchronous motor portvoltage signal calculated by the motor behavior processor as a reference and controlling alternating-current-end output voltage of the three-phase DC / AC converter. The simulation system can directly perform electric energy exchange with a real motor driving system and effectively simulate port voltage response of the three-phase permanent-magnet synchronous motor during current inputting of the motor driving system, achieves full-electrical motor driving testing, saves the testing cost and improves the testing efficiency and safety.

Description

technical field [0001] The invention relates to the technical fields of power electronics and motors, in particular to a simulation system of a voltage-responsive three-phase permanent magnet synchronous motor. 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 to...

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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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