FPGA-realization of fuzzy speed controller for PMSM drives without position sensor

This work realizes the speed control for permanent magnet synchronous motor (PMSM) drives under the condition of without position sensor. Rotor flux angle and rotor speed are obtained by using the algorithm of sliding mode observer. And the fuzzy controller is adopted for controlling the speed of PMSM in order to increase the robust performance. In this paper, we provide an approach from modeling, system design, co-simulation in Modelsim/Simulink to experiment in FPGA which can be used to design and validate our proposed control system. Finally, both simulation and experiment results are confirmed the effectiveness and correctness of the proposed FPGA-based fuzzy speed controller for PMSM which is without position sensor.