The equivalent circuit, the phase diagram as well as the torque-speed characteristic in the braking state are obtained.
较完整地得出：处在能耗制动时，异步电动机特有的等值电路、相量图及机械特性。
2
The driver's control signals are redefined, the torque control strategy is put forward and realized by standard IEC61131-3 Function Block Diagram (FBD) programming languages in integrative controller.
This paper applied direct torque control (DTC) tactics base on DSP to permanent magnet synchronous linear motor, gived the hardware structure and the software diagram of the system.