Embedded Runge–Kutta methods for the integration of a current control loop in an SRM dynamic finite element model

Abstract

The use of embedded Runge–Kutta methods for the time-domain simulation of a dynamic finite element model of a switched reluctance motor is discussed, along with the features of embedded Runge–Kutta methods for the numerical solution of this model. It is shown that step size control and interpolator polynomials can be used to take accurately into account the discrete effects of current control and a pulse width modulated supply on the drive dynamics.