Investigation of PI and Fuzzy Controllers for Speed Control of PMSM Motor Drive

This paper consists of modelling of PM synchronous motor drives (PMSM) with PI controller Fuzzy based Controller. PMSM has hysteresis controller which is used to estimate the speed and current controller errors. The common PI controller is used in industry reason that the ruggedness this regulator acquires. Controlling torque and flux is important in electrical drives due to that problem DTC method is used to control flux and torque estimated errors and fed to the power electronic converters. A PI and fuzzy controllers are used as a speed controller whose input is used as a speed controller whose input is the error between the speed command and feedback speed. Conventional DTC techniques are best compared to field oriented control (FOC) and basic block diagram of fuzzy based controller and PI controllers are presented.