Performance enhancement of brush less dc drive systems

Abstract

The quality of human life can be strongly related to the use of newlineelectrical energy in a smart way Worldwide about twothirds of electricity is newlineconsumed by motors used in powers industrial facilities attached with motion newlinecontrol Electric motors are widely spread in the modern world almost newlineanything that uses electrical energy has one or more electrical motors in it newlineHigh dynamic performance of an electric drive system is a fundamental newlineprerequisite in motion control applications A typical drive system comprises newlinean electric motor power electronic drive circuit sensors controllers etc newlineAC PM Motors consist of a conventional poly phase stator and a newlinePM rotor part Hence AC PM motors can be called as permanent magnet newlinesynchronous motor PMSM The brushless dc motor BLDCM is one kind newlineof permanent magnet synchronous motor PMSM having permanent magnets newlineon rotor and trapezoidal shape back EMF Threephase winding has a newlineconcentrated fullpitch distribution instead of a sinusoidal distribution newline newline