The Convex-Concave Optimization for the Design of a Robust Proportional-Resonant Controller for Grid-Connected Inverter

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Publication Details

Author list: Wipulapong R., Boonto S., Polwisate W.

Publisher: Hindawi

Publication year: 2019

Start page: 1398

End page: 1403

Number of pages: 6

ISBN: 9784907764678

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85073871478&doi=10.23919%2fSICE.2019.8860059&partnerID=40&md5=ba85c3e4fc05ee16404085f54dfe4690

Languages: English-Great Britain (EN-GB)

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Abstract

This paper proposes a proportional-resonant (PR) control design method by using a convex-concave optimization base on robustness constraints for the current controller of the grid-connected inverter with LC filters. The control objective is to determine a controller for maintaining the stability and performance of the system when grid-impedance variations occur. Simulation studies of the system were carried out using Matlab/Simscape to verify the effectiveness of the controller. The results indicate that the proposed control design outperforms the conventional H8 controller in terms of low-order and robustness. ฉ 2019 The Society of Instrument and Control Engineers - SICE.

Keywords

H8 controller, PR controller