Design of dq-based voltage positive feedback for anti-islanding of a DG inverter

Author

Kim, Seul-Ki ; Jeon, Jin-Hong ; Choi, Heung-Kwan

Author_Institution

Korea Univ., Seoul, South Korea

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

The paper discusses an analytical design of dq-based voltage positive feedback (VPF) control for anti-islanding of a distributed generation (DG) inverter. Design criteria for the voltage feedback gain are presented. Based on small signal stability and step response analysis, an analytical design method for lower and upper bounds of the gain is described. It is proven that conventional VPF gain is significantly influenced by real power levels of a DG. To improve this weakness, a modified VPF is proposed. Simulation study validates the analytical design method and the modified VPF control performance for a constant power-controlled inverters.

Keywords

control system synthesis; distributed power generation; feedback; invertors; power distribution control; voltage control; DG inverter; anti-islanding; distributed generation inverter; dq-based voltage positive feedback control; power controlled inverters; small signal stability; step response analysis; voltage feedback gain; Analytical models; Design methodology; Distributed control; Feedback; Inverters; Performance analysis; Signal analysis; Stability analysis; Upper bound; Voltage control; anti-islanding; dq control; small signal stability; voltage positive feedback gain; voltage step response;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009

Conference_Location

Seoul

Print_ISBN

978-1-4244-5230-9

Electronic_ISBN

978-1-4244-5230-9

Type

conf

DOI

10.1109/TD-ASIA.2009.5356887

Filename

5356887