High-performance prediction for variable-speed switched reluctance drives

Abstract

This work presents a simple developed nonlinear dynamic model of a variable reluctance motor (VRM) based on its magnetic characteristics, considering the saturation effect. Most preliminary design work is centered on a fixed speed, or a small number of fixed speeds, even when the requirement is for operation over a wide speed range. This work deals with both constant and variable speed operation. Model development is motivated by the good performance predictions required to support and simplify the design of a such high performance controller. Because the magnetization curves do not need to be pre-calculated, measured, stored, curve-fitted, or idealized the model is extremely simple fast, and accurate. Simulation results of the phase current and torque in both chopping and single-pulse modes of operation are presented.