Position Control of Four Switch Three Phase BLDC Motor Using PWM Control

Abstract

This paper presents a direct current controlled pwm method for control of four-switch, three phase BLDC motor. The main features of this converter are twofold: the first is the reduction of switches and freewheeling diode count; the second is the reduction of conduction losses. For effective utilization of the developed system, a novel direct current controlled pwm scheme is designed and implemented to produce the desired dynamic and static speed-torque characteristics.

Modeling and Simulation of Control Actuation System with Fuzzy‐PID Logic Controlled Brushless Motor Drives for Missiles Glider Applications

“…The PWM-generation logic is to switch inverter to drive BLDC motor depending on error generator from controller. To acquire feedback signals a quadrature encoder model is used to acquire rotor position information of BLDC motor to controller [ 3 , 4 ]. Modeling of controller is primary task of actuation system to maintain optimum response various command inputs.…”