Small Signal Stability Analysis for a DFIG-Based Offshore Wind Farms Collected Through VSC-HVDC Transmission System

Kai Liao, Zhengyou He, Bin Sun, Yong Jia

School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China.

DOI: 10.4236/epe.2013.54B083                

Abstract

This paper modeled a doubly fed induction generator (DFIG) - based offshore wind farm integrated through a voltage source converter –based high voltage direct current (VSC-HVDC) transmission system, which is collected with infinite bus for small signal stability analysis. The control system of HVDC system is considered for the stability analysis. The impact of the VSC control parameters on the network stability is studied. The lineared dynamic model is employed to do small signal stability analysis by the eigenvalue analysis. The locus of the eigenvalue, which is corresponding to the oscillation model is studied. Time domain simulations conducted in Matlab/Simulink are used to validate the small signal stability analysis.

Keywords

DFIG; Offshore Wind Farm; VSC-HVDC; Small Signal Stability

Conflicts of Interest

The authors declare no conflicts of interest.

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