Vector control of permanent magnet synchronous motor with surface magnet using genetic algorithm fuzzy logic controller

This paper describes the vector control of a three phase permanent magnet synchronous motor with surface magnet (SPMSM) drive using genetic algorithm fuzzy logic controller. After reviewing the advantages of this solution, a possible vector control schemes for SPMSM drives based on the principle of rotor flux oriented control is considered. Based on motor dynamics and non-linear load characteristics, a GA fuzzy logic controller is developed and integrated with the vector control scheme of the SPMSM drive. The efficiency of the proposed GAFLC based SPMSM drive and the feasibility of the proposed control system is verified by simulation results at different dynamic operating conditions such as sudden load change, parameter variations, step change of command speed, etc. Furthermore the proposed fuzzy logic controller makes the drive system robust, accurate and insensitive to parameter variations.