电工技术学报2018，Vol.33Issue(8)：1732-1741,10.DOI:10.19595/j.cnki.1000-6753.tces.170026
低开关频率下双三相感应电机矢量控制策略
Vector Control Strategy for Dual Three-Phase Induction Machines under Low Switching Frequency
摘要
Abstract
Because of some inherent advantages, the dual three-phase induction machine is suitable for railway transportation and other low-voltage, high-power and high-reliability occasions. Due to switching losses and cooling conditions, the maximum switching frequency of the inverter in high-power traction drive systems is usually not more than 1kHz. According to the characteristics of the multi-mode modulation technique, the vector control strategy under low switching frequency for the dual three-phase induction machine is proposed in this paper. It includes the flux observer, the currents regulators in(αβ)subspace and(xy)subspace,the phase-angle regulator,and the correction strategy of the flux orientation. Besides, in the view of the problem that the voltage amplitude cannot be adjusted under the condition of square waves, a modified vector control strategy is presented. Simulation of a software simulation system and experimental results from a prototype machine verify the proposed vector control strategy under low switching frequency.关键词
双三相感应电机/矢量控制/低开关频率/同步调制/方波Key words
Dual three-phase induction machine/vector control/low switching frequency/synchronous modulation/square wave分类
信息技术与安全科学引用本文复制引用
王琛琛,王堃,游小杰,周明磊..低开关频率下双三相感应电机矢量控制策略[J].电工技术学报,2018,33(8):1732-1741,10.基金项目
国家自然科学基金(51507009)和中央高校基本科研业务费专项资金(E15RC00030)资助项目. （51507009）
