Title :
Analysis on non-detection zone of the islanding detection in photovoltaic grid-connected power system
Author :
Fan YuGuo ; Li Chen
Author_Institution :
Inst. of Electr. Power Eng., North China Electr. Power Univ., Baoding, China
Abstract :
Until now, there is a great development in photovoltaic grid-connected power system. In addition, there is an ongoing research on the problems existed in the system. Islanding of photovoltaic grid-connected power system have adverse impact on power quality and utility equipments, affecting the performance of the utility even worse, it may damage people´s lives. Islanding detection is a key consideration for grid-connected DG. The effects of islanding detection are not only subject to the strategy it employed, but also subject to the parameter setting. Non-detection zone (NDZ) is an important index to evaluate the performance of islanding detection. In this paper, the NDZs of active frequency drift and active frequency drift with positive feedback (AFDPF) are mapped into two different load space, i.e. L×Cnorm space and Qf0 × Cnorm space. Based on it, theoretical deductions are given and simulations are developed to validate the discussions.
Keywords :
distributed power generation; photovoltaic power systems; power apparatus; power grids; power supply quality; AFDPF; NDZ analysis; active frequency drift; grid-connected DG; islanding detection performance evaluation; nondetection zone analysis; parameter setting; photovoltaic grid-connected power system; positive feedback; power quality; utility equipment; Phase frequency detector; Phase locked loops; Photovoltaic systems; Power systems; Q factor; Voltage control; Islanding Detection; Non Detection Zone; Photovoltaic Grid-Connected System;
Conference_Titel :
Advanced Power System Automation and Protection (APAP), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-9622-8
DOI :
10.1109/APAP.2011.6180527