Abstract

The lack of integrated module for asymmetric half-bridge converter increases the cost to build the switched reluctance motor drive system (SRMD), and limits its wide application to some extent. This paper presents a solution for three phase switched reluctance motor (SRM) driven by three phase full-bridge converter, without adding new hardware elements. And based on vector control, the relationship between torque error and the duration of zero voltage vector is established, and the different control strategy is proposed at low and high speed for further improving torque performance. This solution not only decrease the cost of SRMD, but also reduce the number of switches and connections between converter and SRM. Finally the results of MATLAB/Simulink and RT-LAB are given to verify the proposed scheme.

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