RTDS simulation of grid-side converter for wind power generator under unbalanced grid fault

Author

Wang, Zhiming ; Liu, Qihui

Author_Institution

Coll. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China

fYear

2010

fDate

10-13 Oct. 2010

Firstpage

526

Lastpage

530

Abstract

The appropriate control strategy of grid-side converter (GSC) under unbalanced grid fault is important for wind power generator´s fault-ride-through (FRT) capacity. Based on the basic principles of voltage space vector control, this paper studied the mathematical model of GSC under unbalanced grid conditions, and developed one efficient separation method of positive and negative sequence components on the basis of comparative analysis of present methods. The control strategy based on voltage-oriented vector control technology was established and simulation research using RTDS (Real Time Digital Simulator) was carried on. The results verified the validity and correctness of the strategy proposed by this paper.

Keywords

AC generators; digital simulation; power convertors; power engineering computing; power grids; power system control; power system faults; wind power plants; RTDS simulation; control strategy; fault-ride-through capacity; grid side converter; negative sequence component; positive sequence component; real time digital simulator; unbalanced grid fault; voltage space vector control; wind power generator; Converters; Generators; Harmonic analysis; Mathematical model; Power harmonic filters; Reactive power; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2010 International Conference on

Conference_Location

Incheon

Print_ISBN

978-1-4244-7720-3

Type

conf

Filename

5664018