Avoiding Regeneration with a Matrix Converter Drive

The aim of this paper is to present a method of avoiding regeneration onto the supply from a Matrix Converter based motor drive. The avoidance of regeneration is important in many aerospace applications, such as aircraft actuation and refueling systems. In order to detect regeneration in the Matrix Converter, two techniques are proposed. These are the Power Comparison method and Input Voltage Reference method. The results of the proposed methods show that Matrix Converter is a feasible alternative for this application rather than the two-stage DC-Link converters. Experimental results from a prototype, using a 5.3-hp induction motor are presented.