Author(s)

C.K. Lee, N.M. Kwok & P.C.K. Luk

Abstract

Simulation of a position control system using brushless DC motors C.K. Lee/ N.M. Kwok,* P.C.K o Depar(me^( o/ EZecfyo^zc En Polytechnic, Hung Horn, Hong Kong Gordon University, Schoolhill, Aberdeen ABO 1FR, UK ABSTRACT A computer program is written in the PC environment to simulate a position control system using a brushless DC motor drive. This program features user friendly interfaces to set the simulation parameters and an online display of the controlled variables. A collection of statistical data is also provided. The calcu- lation and graphical plots are developed with the MATLAB environment. The practical approach of using a discrete controller to control a continuous plant is adopted in the simulation. This program will be valuable for off-line system design and can be considered as a reference model for online tuning of the controller parameters for a host computer where this program is running. INTRODUCTION Brushless DC motors find more applications as motion actuators nowad

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