Design and Implementation of Bidirectional Voltage-Multiplier Front-End Converter for Switched Reluctance Motor Drive

The asymmetric half-bridge converters are usually used for the switched-reluctance motor (SRM) drive. The current tracking speed and the current ripple are dependent on the switch-bus voltage. The larger the switch-bus voltage is, the faster the current tracking speed is, but the larger the steady-state current ripple is. In this paper, the bidirectional voltage-multiplier front-end converter (BVMFEC) with two switch-bus voltage level is proposed to meet the requirement of the current tracking speed and the current ripple. Single current sensor and single voltage sensor are used to control the BVMFEC-fed SRM drive. The proposed converter and SRM drive is demonstrated by the provided simulation results and the experimental results.