Modeling and Simulation of Switched Reluctance Machines

Abstract

This chapter discusses the modeling and simulation approaches for switched reluctance machines (SRMs). First, it presents the modeling methods for SRMs including analytical models, Artificial intelligence based models, and lookup tables based models. Furthermore, it introduces the finite element method (FEM) and experimental measurement methods to obtain high fidelity magnetic characteristics for SRMs. Step-by-step procedure is explained for SRM modeling and analysis using FEM. The direct and indirect measurement methods of SRM magnetic characteristics are included, comparison between the measured and FEM-calculated characteristics is achieved, and good agreement is seen. In addition, this chapter gives the mathematical modeling of SRM, and explains its model development using MATLAB/Simulink environment. Simulation and experimental results are obtained, a very good agreement is observed.

Diagnostically Oriented Experiments and Modelling of Switched Reluctance Motor Dynamic Eccentricity

“…The electromagnetic torque acting on the moving part of the transducer is defined as a partial derivative of magnetic co-energy after mechanical coordinate. The mechanical coordinate is the angular position of the rotor, so the electromagnetic torque acting on the rotor is determined by the relationship [ 20 ]: where: —magnetic co-energy accumulated in the motor volume: where: —the currents in the phase winding given as the coordinates on which the flux depends, as opposed to specific current values i 1 , i 2 , …, i m [ 24 , 25 , 26 ].…”