High‐accuracy voltage regulation method for PV distribution systems. Issue 10 (1st May 2019)

• Record Type: Journal Article
• Authors: Zhang, Zhanqiang; Dou, Chunxia; Yue, Dong; Zhang, Bo
• Is Part Of: Electronics letters. Volume 55:Issue 10(2019)
• Page Start: 615
• Page End: 617
• Publication Date: 2019-05-01
• Subjects: photovoltaic power systems -- voltage control -- power generation control -- power distribution control -- distributed power generation -- compensation -- PI control; high‐accuracy voltage regulation method -- PV distribution systems -- novel voltage regulation method -- voltage security -- photovoltaic distribution systems -- two‐level regulation -- VDE -- voltage difference -- VDI -- primary regulation -- sensitivities‐based power compensation -- secondary regulation -- PV platform -- voltage deviation -- evaluation indexes -- PI coordinate compensator; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2019.0111
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : In this Letter, a novel voltage regulation method is proposed for ensuring voltage security in photovoltaic (PV) distribution systems. It is a two‐level regulation to reduce overall voltage deviation (VDE) and voltage difference (VDI). Firstly, evaluation indexes for VDE and VDI are built. Then, in order to reduce VDE, primary regulation by sensitivities‐based power compensation is developed. Furthermore, in order to reduce VDI, secondary regulation by using PI coordinate compensator is built. Compared with other methods, the proposed method can achieve high regulation accuracy. The effectiveness is verified in a PV platform.