HVDC power transmission oriented grid-connection topology and control strategy for wind farm composed of doubly fed induction generators

被引：0
作者：
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang Province
来源：
Nian, H. (nianheng@zju.edu.cn) | 1731年 / Power System Technology Press卷 / 38期
关键词：
DC power transmission; Doubly fed induction generator; Indirect air-gap flux orientation; Wind power generation system;
D O I：
10.13335/j.1000-3673.pst.2014.07.003
中图分类号：
学科分类号：
摘要：
A kind of HVDC power transmission oriented grid-connection topology and corresponding control strategy for wind farm composed of doubly fed induction generators (DFIG) is proposed. In the proposed topology the DFIG is connected to power grid via the DC bus inside the DFIG, and the converter is controlled by indirect air gap flux linkage orientation strategy and air gap electromotive force (emf) orientation strategy to ensure that a three-phase sinusoidal emf can be generated in the air gap of DFIG, meanwhile the active power transmitted from DFIG to DC bus can be flexibly adjusted. Besides the control strategy within the whole speed range of DFIG under the proposed topology is analyzed. Finally, the feasibility of the proposed topology and corresponding control strategy is validated by a constructed experimental system for the DC grid-connection and power transmission of DFIG.
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页码：1731 / 1738
页数：7
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