Open AccessHigh‐accuracy voltage regulation method for PV distribution systems
Author(s) -
Zhang Zhanqiang,
Dou Chunxia,
Yue Dong,
Zhang Bo
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2019.0111
Subject(s) - photovoltaic system , compensation (psychology) , voltage , voltage regulation , control theory (sociology) , voltage reference , power (physics) , computer science , electronic engineering , engineering , electrical engineering , control (management) , physics , psychology , quantum mechanics , artificial intelligence , psychoanalysis
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.