Efficiency optimal control of Switched Reluctance Machine over wide speed range applied to flywheel energy storage system

Switched Reluctance Machines (SRMs) show great advantages of structural simplicity, high reliability, wide speed range with high efficiency, which make them be ideal alternatives to applications of flywheel energy storage system. High efficiency operation over a wide speed range is important for flywheel energy storage system. This paper proposes a novel generating control strategy of SRM to optimize system efficiency over a wide speed range. At the same time, there is no state change between the low speed and the high speed status, which is different from the previous works. Both simulation and experimental results show that the system has favorable static and dynamic performance.