Drive System of Stator-Permanent-Magnet Double-Power-Flow Motor Based on DSP and CPLD

The method to design a double-power-flow motor control system based on floating-point DSP and CPLD as the controllers was expounded.It introduced the way to measure internal rotor and external rotor position and the speed algorithm,the principle of power circuit selection,phase current measurement,and the over current protection circuit based on CPLD.It solved the problem of internal rotor position algorithm.In CCC mode,the system showed that the motor has a good performance and proving this system could achieve the control of DPF motor.This lays down the foundation for further research on different operation conditions.