Design Of Pulse Circuit Used In The Permanent Magnet Magnetizer

The permanent magnet motor has become the research hotspot in the field of motor aspermanent magnetic materials in motor application are more extensive in recent years. In orderto improve the magnetization effect of permanent magnet motor, it is required accurate andefficient magnetization circuit except that it is choused the permanent magnet with high coerciveforce. The paper devises the magnetization circuit for permanent magnet motor.This paper first introduces the design principle of permanent magnet magnetization circuitand basic requirements, which requires magnetization motor reach the saturation magnetizationeffect as far as possible, and minimize the internal vortex of permanent magnets. It is adapted theway of large capacitance group pulse discharge for the motor magnetization.In the circuit design,the first of work is the design of charger circuit for large capacitance group. This part of thecircuit mainly includes transformer, rectifier voltage and filtering process. The process ofdischarging circuit is to realize the magnetization of permanent magnet motor of capacitancecharger completes after which a large pulse current on permanent magnet motor permanentmagnet.Because instant discharge current is greatly, we choose the high-power SCR as chargingand discharging circuit switching devices, which can avoid to produce the instantaneous pulsecurrent making devices burn out. In addition, high-power thyristor trigger circuit is separatelytriggered bytwo trigger pulse.The subject adopts simulation software to do simulation analysis. We can applicant thesoftware to simulate each part of the analysis of magnetization circuit. On the one hand, it cancheck the correctness of the circuit and protect devices of circuit each part effectively. On theother hand, we can get the most effective circuit parameters through the unique parameteranalysis and optimum analysis method of simulation software.