A Dynamic Reactive Power Control for DFIG Wind Turbines andIts Impacts on Distribution Protections

Haifeng LI; Xiang GAO; Gang WANG; Zhengrong WU; Guoqing PAN

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A Dynamic Reactive Power Control for DFIG Wind Turbines andIts Impacts on Distribution Protections

运行可靠性与广域安全防御绿色电力自动化学术研究研制与开发工程应用综述风电并网安全与保护特辑（英文） | 更新时间：2025-08-13

- A Dynamic Reactive Power Control for DFIG Wind Turbines andIts Impacts on Distribution Protections
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- 电力系统自动化 2012年36卷第8期页码：185-190
- 作者机构：
  
  College of Electric Power，South China University of Technology,Guangzhou,China,510640
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划(“973计划”)，粤港关键领域重点突破项目
- DOI：
  中图分类号：
- 纸质出版日期：2012
- 稿件说明：
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Haifeng LI, Xiang GAO, Gang WANG, 等. A Dynamic Reactive Power Control for DFIG Wind Turbines andIts Impacts on Distribution Protections[J]. 电力系统自动化, 2012,36(8):185-190.
Haifeng LI, Xiang GAO, Gang WANG, 等. A Dynamic Reactive Power Control for DFIG Wind Turbines andIts Impacts on Distribution Protections[J]. 电力系统自动化, 2012,36(8):185-190. DOI：

DOI：

摘要

With the increasing penetration of distributed generations（DGs）into power grids，the fault ride-throughability of DG is attracting more and more attention.Recent grid codes require a DG to maintain its connection withthe grid during grid faults and to play an active role in the recovery of grid voltage.This paper chooses the doubly- fed induction generator（DFIG）as the typical wind turbine for study.Firstly，a dynamic reactive power controlstrategy is proposed to improve the fault ride-through characteristic of a DFIG.The contributions of a DFIG to thefault current under the dynamic reactive power control and the Crowbar control are analyzed and compared based onthe mathematical expressions and control behaviors.The impacts of a DFIG under two control strategies ondistribution protections are discussed.Studies show that although a DFIG under the dynamic reactive power controlprovides more fault current component than one under the Crowbar control，its impacts on distribution protectionsare acceptable.Finally，a10kV distribution network with a DFIG is simulated in PowerFactory DIgSILENT.Thesimulation results prove the correctness of above theoretical analysis.

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