Abstract

This study proposes a new approach of unified power quality conditioner which is made up of a matrix converter without energy storage devices to mitigate the current harmonics, voltage sags and swell. By connecting the matrix converter output terminals to the load side through series transformer and the input side of matrix converter is connected to the supply side with step up transformer. So a matrix converter injects the compensation voltage on the load-side, so it is possible to mitigate the voltage sag/swell problems, resulting in an efficient solution for mitigating voltage and current related power quality problems. Thus, the proposed topology can mitigate the voltage fluctuations and current harmonics without energy storage elements and the total harmonic distortion produced by the system also very low. It also reduced volume and cost, reduced capacitor power losses, together with higher reliability. The Space-Vector Modulation (SVM) is used to control the matrix converter. MATLAB/SIMULINK based simulation results are presented to validate the approach.

Keywords:

Current harmonics, MATLAB/SIMULINK, matrix converter, non linear load, unified power quality conditioner, voltage sag/swell,

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Competing interests

The authors have no competing interests.

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The authors have no competing interests.