Title :
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
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;
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
DOI :
10.1109/TD-ASIA.2009.5356887
