Comparison of Speed Control of Permanent Magnet Synchronous Motor using PI and Fuzzy Controller

Abstract

The variable frequency has an important usage in industrial applications. Electrical energy produced by Power Stations is normally 50/60 Hz and is not applicable for many domestic and industrial applications. There are some electrical and electromechanical devices, which need variable frequency than the fixed power supply frequency. Permanent Magnet Synchronous Motor is one of the best examples of variable frequency drives. The Permanent Magnet Synchronous Motor is widely used in the low to medium power system due to its characteristics of high efficiency, high torque to inertia ratio, high reliability, and fast dynamic performance. The Permanent Magnet Synchronous Motor and variable frequency drive have the large sum of demand in industrial and power generation applications. The frequency converter is such device, which generates the variable frequency. In this paper, the vector control of Permanent Magnet Synchronous Motor fed by a frequency converter is modelled and simulated by using PI controller and Fuzzy controller, one of the intelligent methods used in electric drives. Waveforms derived from the simulation of the vector control of Permanent Magnet Synchronous Motor fed a frequency converter are examined comparatively for PI and Fuzzy Controllers. Thus, this project strongly recommends the frequency converter for Permanent Magnet Synchronous Motor application using a Fuzzy controller.