Single chip implementation of speed servo controller for AC servo motor

A fulled-digital speed controller for PMSM is based on single FPGA, which utilizes field oriented control (FOC) and Space Vector PWM control. integrating FOC, SVPWM, PI regulator of current loop and speed loop, communications and other complex modules. All modules tan be integrated on single field proprammable gate arrays(FPGA). The paper introduces the interrelated control theories and ideas and offers simulated results of EDA firstly, presents the experimental waveforms finally. Because based on the vector control, the speed servo controller acquires better performances of linear adjusted speed and dynamic than the VVVF speed servo system for induction-motor.