摘  要：研究了航空EMA用永磁无刷电机正弦波/方波复合驱动策略，推导了永磁无刷电机在驱动方式切换时的转速动态方程，分析了影响切换过程中转速波动的主要因素。建立了永磁无刷电机复合驱动的仿真模型和实验平台，仿真和实验结果表明，正弦波/方波复合驱动时的转速波动可以控制在允许的范围内，验证了复合驱动控制策略的有效性。
关键词：EMA；复合驱动；转速波动；TMS320F2812

Abstract: This paper analysed the sine/square wave compound driven for brushless PM motors in aircraft EMA,deduced the dynamical equation of the speed during the switch process and researched the major factors which affect the speed fluctuation.The simulation model of compound driven for brushless PM motor and the platform of the motion control system for universal motors were established.The results of the analysis,simulations and experiments prove that the speed fluctuation can be controlled within acceptable limits and the compound driven for brushless PM motor is feasibility.
Key words: EMA; compound driven; speed fluctuation; TMS320F2812