Design and implementation of a switched reluctance motor drive with a novel converter

In this paper, a novel converter for a switched reluctance motor (SRM) driv e system is proposed. A. small capacitance is used to store the energy extr acted from an offgoing phase and raise the de bus voltage during phase comm utation. The raised bus voltage can turn on the next ongoing phase and turn off the offgoing phase quickly. As a result, the commutation interval of t he motor is effectively reduced. The transient and load disturbance respons es of the drive system are improved, and the adjustable speed range is exte nded. In addition, this new converter is simple and easy to implement. Only a few extra components are required. Based on this new converter, a high p erformance SRM drive system has been designed. A 32-bit microprocessor base d system has been implemented to verify the proposed methods. Several exper imental results show that the proposed drive system performs better than th e traditional drive systems. (C) 2000 Elsevier Science S.A. All rights rese rved.