Abstract

The presented paper introduces a low cost converter for Switched Reluctance Motor (SRM) control. Many types of converters are implemented to drive SRM. Generally Asymmetric Bridge Converter (ABC) is selected in which two switches are used per phase to excite the phase winding. The upper transistor in ABC faces a problem in gate-source voltage which prevents SRM phase to be excited properly. Some methods are used to solve the problem which are usually increases the cost and also decreases the efficiency of the converter circuit. The problem is basically related to the custom Mosfet drivers. In this paper, a low cost ABC is presented in order to solve the problem. In the converter, a different type of Mosfet driver is used. The constructed ABC circuit is then tested in the laboratory on a 3hp 6 by 4 SRM and the operational results are obtained.

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