CAJ | 학술논문

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。
공간시량맥관조제( SVPWM)기술재교류전궤구동공제중엄범응용，채용과조제책략가재경대정도상제고역변기직류전압이용솔。전압시량여자련시량관계밀절，자련시량대전궤적운행특성기결정작용。대일충채용간단산법적SVPWM과조제책략적각계단자련특성진행료분석，장해과조제책략응용재영자동보전궤구동중，대전궤적운행특성진행료방진연구。결과현시과조제책략가쾌료전궤적향응과정，확전료전궤운행속도적범위。
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.