This article introduced emphatically the control strategy, position detection and identification, drive technique as well as main circuit of permanent magnet Ac servo system.
重点介绍了永磁交流伺服系统的控制策略，位置检测和辨识、主电路和驱动技术等关键技术。
2
The hardware of permanent magnet AC servo system is designed, including system power main circuit, system control circuit and auxiliary circuit.
设计了永磁交流伺服系统硬件电路，包括系统功率主电路、系统控制电路和辅助电路。
3
The maincontrol circuit sends 6 PWM signals. After the isolation and enlargement by the power circuit, these signals could drive the Permanent Magnet Synchronous Motor (PMSM for short).