A Novel Active Islanding Detection Method of Grid-connected Photovoltaic Inverters Based on Current-Disturbing

Author

Chunjiang, Zhang ; Wei, Liu ; Guocheng, San ; Weiyang, Wu

Author_Institution

Coll. of Electr. Eng., Yanshan Univ., Hebei

Volume

3

fYear

2006

fDate

14-16 Aug. 2006

Firstpage

1

Lastpage

4

Abstract

A novel method for islanding detection of a grid-connected photovoltaic system is proposed in this paper. Islanding can be more effectively detected through adding periodical disturbing current to the output current of the inverter. Compared with the active frequency drift method, the method has the many merits that it does no harm to utility, doesn´t affect the utility frequency and also it does not generate harmonic current and voltage. In addition to, it has the least NDZ (non detection zone). This method has been proved by simulations and experiments

Keywords

invertors; photovoltaic power systems; power grids; grid-connected photovoltaic inverters; islanding detection method; Frequency; Inverters; Photovoltaic systems; Power supplies; Power system harmonics; Power system protection; Power transformers; Solar power generation; Switches; Voltage; active current-disturbing; grid-connected inverter; islanding;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International

Conference_Location

Shanghai

Print_ISBN

1-4244-0448-7

Type

conf

DOI

10.1109/IPEMC.2006.4778243

Filename

4778243