PERFORMANCE ANALYSIS OF INVERTER-FED PERMANENT MAGNET SYNCHRONOUS MOTOR

Abstract

The use of permanent magnet synchronous motors (PMSM) for variable - speed industrial drive applications has always been a valuable suggestion. The permanent magnet synchronous

motor, often the best choice among a.c. machines for many

• industrial tasks. It is simple, cheap, high efficient, and robust in construction. In this thesis a new study of

permanent magnet synchronous motor with voltage - frequency control is proposed. This technique uses a rectifier (fully controlled bridge) and an inverter (pulse-width modulation). This method provides a mean of speed control, which is simple, continuous, and relatively economical . • This thesis is concerned with the comparison of perfor-

mance of PMSM

The voltage

with.and without voltage - frequency control.

frequency control and harmonic content

including harmonic distortion are

and optimization of operation

analysed.

modes of

The comparison

pulse - width

modulation inverter are also presented.

• The study provides a quantitative assessment of the performance of permanent magnet synchronous motor when its

synchronous speed to be varied using a power electronic circuit. This study will help the designer and engineers to choose the suitable type of motor according to the type of application they need.