Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid

Lei Guan; Jun Yao

doi:10.23919/PCMP.2023.000539

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Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid

Contents | 更新时间：2026-09-30

- Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid
- Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid
- 现代电力系统保护与控制（英文） 2024年9卷第3期页码：112-125
- 作者机构：
  
  State Key Laboratory of Power Transmission Equipment Technology, School of Electrical Engineering, Chongqing University,Chongqing,China
- 作者简介：
- 基金信息：
- DOI：10.23919/PCMP.2023.000539
  中图分类号：
- 纸质出版：2024-05-01
- 稿件说明：
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Lei Guan, Jun Yao. Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid[J]. 现代电力系统保护与控制（英文）, 2024,9(3):112-125.

Lei Guan, Jun Yao. Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid[J]. Protection and Control of Modern Power Systems, 2024, 9(3): 112-125.
Lei Guan, Jun Yao. Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid[J]. 现代电力系统保护与控制（英文）, 2024,9(3):112-125. DOI： 10.23919/PCMP.2023.000539.

Lei Guan, Jun Yao. Dynamic Coupling and Cooperative Control for Multi-Paralleled Doubly Fed Induction Generator Wind Farms During Symmetrical Low Voltage Ride-Through in a Weak Grid[J]. Protection and Control of Modern Power Systems, 2024, 9(3): 112-125. DOI： 10.23919/PCMP.2023.000539.

摘要

Abstract

In multi-fed grid-connected systems

there are complex dynamic interactions between different pieces of equipment. Particularly in situations of weak-grid faults

the dynamic coupling between equipment becomes more pronounced. This may cause the system to experience small-signal instability during the fault steady-state. In this paper

multi-paralleled doubly fed induction generator (DFIG)-based wind farms (WFs) are taken as an example to study the dynamic coupling within a multi-fed system during fault steady-state of symmetrical low voltage ride-through (LVRT) in a weak grid. The analysis reveals that the dynamic coupling between WFs will introduce a damping shift to each WF. This inevitably affects the system's dynamic stability and brings the risk of small-signal instability during fault steady-state in LVRT scenarios. Increasing the distance to fault location and fault severity will exacerbate the dynamic coupling between WFs. Because of the dynamic coupling

adjusting the control state of one WF will affect the stability of the remaining WFs in the system. Hence

a cooperative control strategy for multi-paralleled DFIG WFs is proposed to improve dynamic stability during LVRT. The analysis and the effectiveness of the proposed control strategy are verified by modal analysis and simulation.

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