A NOVEL SVM-BASED HYSTERESIS CURRENT CONTROLLER

In this paper, a novel space-vector-modulation (SVM)-based hysteresis current controller (HCC) is proposed. This technique utilizes all adva ntages of the HCC and SVM technique. The controller determines a set o f space vectors from a region detector and applies a space vector sele cted according to the main HCC. A set of space vectors including the z ero vector to reduce the number of switchings is determined from the s ign of the output frequency and output signals of three comparators wi th a little larger hysteresis band than that of the main HCC. A simple hardware implementation is proposed, and experimental results of the SVM-based HCC are also shown.