MAGNETIC-CIRCUIT MODELING OF THE FIELD REGULATED RELUCTANCE MACHINE .2. SATURATION MODELING AND RESULTS

This paper explores and offers solutions for two causes of simulation instabilities which occur when modeling machines using magnetic circui ts. An algorithm for dynamic simulation of electric machines based on the magnetic circuit model (MCM) developed in Part I of this paper is augmented to include the ability to model magnetic saturation without numerical oscillations. The resulting MCM algorithm is implemented in a digital computer program which is well suited for both simulation of transients in non-sinusoidally wound machines such as a Field Regulat ed Reluctance Machine (FRRM), and for design. The model developed is v erified using a laboratory prototype FRRM, converter, and controller.