Modeling and control of a switched reluctance motor using simulation software

Abstract

Switched Reluctance Motor drive system (SRD) integrates modern power electronic technology and automatic control technology as a whole. With its characteristics of simple structure, low cost and excellent speed regulation performance, it has become one of the hottest topics in the field of electric drive. This dissertation focuses on the theme of realizing the design of switched reluctance motor drive system with high efficiency and energy saving. Based on learning and summarizing the relevant literatures, the research of the control strategy and controller of this system is carried out. First, the basic characteristics and working principle of switched reluctance motor are analyzed. Second, the speed regulation characteristics of switched reluctance motor can be obtained after its basic equation and linear model are introduced. In contrast to the advantages and disadvantages of various control strategies, it is finally determined that Current Chopping Control (CCC) strategy is used to design SRD. In order to verify the feasibility and practicality of Current Chopping Control strategy, this dissertation researches and simulates the SRD on the platform of MATLAB/SIMULINK and JMAG. Simulation results demonstrate convincingly that the CCC strategy helps the motor performs well and the ripples of its current and torque are acceptable.