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SVPWM过调制算法磁链分析及在永磁同步电机驱动中的应用 被引量:11

Flux Linkage Analysis of SVPWM Overmodulation Algorithm and Its Application in PMSM Drive
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摘要 空间矢量脉宽调制(SVPWM)技术在交流电机驱动控制中广泛应用,采用过调制策略可在更大程度上提高逆变器直流电压利用率。电压矢量与磁链矢量关系密切,磁链矢量对电机的运行特性起决定作用。对一种采用简单算法的SVPWM过调制策略的各阶段磁链特性进行了分析,将该过调制策略应用在永磁同步电机驱动中,对电机的运行特性进行了仿真研究。结果显示过调制策略加快了电机的响应过程,扩展了电机运行速度的范围。 Space vector pulse width modulation( SVPWM) method is widely used in AC motor drive.Overmodulation strategy can improve the utilization of inverter DC voltage in greater extent. Voltage vector is closely related with the flux vector which plays a decisive role in motor operating. The characters of flux linkage were analyzed by using a simple algorithm overmodulation. The simulation of the motor operating characteristics was carried out by using the overmodulation algorithm in PMSM drive. The simulation results indicate that the overmodulation algorithm used in PMSM drive can speed up the response of the motor and expand the range of the motor speed.
出处 《电机与控制应用》 北大核心 2014年第7期6-9,48,共5页 Electric machines & control application
基金 国家自然科学基金(51107041) 广东省自然科学基金(S2011040005498)
关键词 SVPWM 过调制 磁链分析 永磁同步电机 space vector pulse width modulation(SVPWM) overmodulation flux linkage analysis permanent magnet synchronous motor
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