Robust Control Design for Voltage Tracking Loop of Dynamic Voltage Restorers

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2015/09/01

タイトル(英語): Robust Control Design for Voltage Tracking Loop of Dynamic Voltage Restorers

著者名: Bruno Augusto Ferrari (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo), Naji Rajai Nasri Ama (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo), Kelly Caroli

著者名(英語): Bruno Augusto Ferrari (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo), Naji Rajai Nasri Ama (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo), Kelly Caroline Mingorancia de Carvalho (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo), Fernando Ortiz Martinz (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo), Lourençco Matakas Junior (Electrical Energy and Automation Department of Polytechnic School of the University of Sao Paulo)

キーワード: robust control，Dynamic Voltage Restorer (DVR)，H∞

要約(英語): The dynamic voltage restorer (DVR) is a power electronics based solution for mitigation of voltage sags and voltage swells effects on sensitive loads that injects voltages in series with the grid. Typically, the controller structure for a DVR comprises an inner current loop and an outer voltage loop. Usually, a proportional controller or a proportional integral controller is used for the current loop, and a resonant controller is used for the voltage loop. This paper presents the design of a robust controller for the voltage tracking loop of a DVR that guarantees robust stability against load parameter variation. Moreover, the proposed controller ensures the tracking of a sinusoidal voltage waveform as well the rejection of the nonlinear load current influence, both with a prespecified error. The voltage controller design is based on the H∞ parameter specification approach. All performance and robustness requirements are specified and analyzed on the basis of the frequency response plot of the closed loop transfer function. The proposed controller performance is validated by simulation and by experiments carried out on a low-scale DVR prototype.

本誌: IEEJ Journal of Industry Applications Vol.4 No.5 （2015）

本誌掲載ページ: 634-642 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/4/5/4_634/_article/-char/ja/