Negative-sequence admittance control scheme for distributed compensation of grid voltage unbalance

Author

Wang, Fei ; Mao, Hualong ; Xu, Dezhi ; Ruan, Yi

Author_Institution

Dept. of Mechatron. Eng. & Autom., Shanghai Univ., Shanghai, China

fYear

2012

fDate

10-13 June 2012

Firstpage

1

Lastpage

8

Abstract

This paper proposes to ease the responsibility of the grid for voltage unbalance correction with distributed generation systems. Specifically, the functionality to decrease the negative-sequence voltage at the grid connection point is added to the control of distributed generation inverters. By controlling the negative-sequence admittance of DG inverters, co-operative compensation for unbalanced grids is achieved. Detailed control scheme and small-signal modeling are presented, together with simulation results for the verification.

Keywords

distributed power generation; invertors; power grids; voltage control; DG inverters; distributed compensation; distributed generation inverters; distributed generation systems; grid connection point; grid voltage unbalance correction; negative-sequence admittance control scheme; negative-sequence voltage; small-signal modeling; unbalanced grid cooperative compensation; Current measurement; Feeds; Integrated circuit modeling; Load modeling; Superluminescent diodes; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Modeling for Power Electronics (COMPEL), 2012 IEEE 13th Workshop on

Conference_Location

Kyoto

ISSN

1093-5142

Print_ISBN

978-1-4244-9372-2

Electronic_ISBN

1093-5142

Type

conf

DOI

10.1109/COMPEL.2012.6251728

Filename

6251728