Research on the frequengcy regulation of aidding system of VSCF double-fed wind generator

The present VSCF double-fed wind generators(DFIG) adopt decoupling control, and the output of DFIG. isn't affected by the frequency of the system, so the present DFIG cann't support the frequency of the power system. To solve this problem, this article makes the traditional DFIG show the r...

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Bibliographic Details
Published inDianli Xitong Baohu yu Kongzhi Vol. 39; no. 11; pp. 56 - 61
Main Authors Peng, Xi-Yun, Liu, Rui-Ye
Format Journal Article
LanguageChinese
Published 01.06.2011
Subjects
Control
Control systems
Decoupling
Dynamical systems
Dynamics
Inertia
Rotor speed
Wind power generation
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Summary:The present VSCF double-fed wind generators(DFIG) adopt decoupling control, and the output of DFIG. isn't affected by the frequency of the system, so the present DFIG cann't support the frequency of the power system. To solve this problem, this article makes the traditional DFIG show the response of inertia as regular generating unit by adding the auxiliary frequency regulation to the traditional DFIG. To avoid the DFIG stop due to participating frequency regulation, which brings adverse effects to the recovery of the system's frequency, this article introduces a novel algorithm to prevent that kind of situation by introducing the rotor speed of DFIG to auxiliary frequency regulation. The simulation results show that the DFIG with auxiliary frequency regulation can improve the dynamic frequency of the system effectively.
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ISSN:1674-3415