A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms

Qian Hui; Jinlu Yang; Xia Yang; Zhe Chen; Yan Li; Yun Teng

doi:10.17775/CSEEJPES.2019.00250

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A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms

Special Section Papers | 更新时间：2025-12-18

- A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms
- A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms
- 中国电机工程学会电力与能源系统学报(英文) 2019年5卷第2期页码：259-265
- 作者机构：
  
  1. Shenyang University of Technology,,, CN,Liaoning,Shenyang
  2. State Grid East Inner Mongolia Electric Power Supply, Co., Ltd,.,Hohhot,China,010020
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2019.00250
  中图分类号：
- 纸质出版：2019
- 稿件说明：
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Qian Hui, Jinlu Yang, Xia Yang, 等. A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms[J]. 中国电机工程学会电力与能源系统学报(英文), 2019,5(2):259-265.

Qian Hui, Jinlu Yang, Xia Yang, et al. A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms[J]. CSEE Journal of Power and Energy Systems, 2019, 5(2): 259-265.
Qian Hui, Jinlu Yang, Xia Yang, 等. A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms[J]. 中国电机工程学会电力与能源系统学报(英文), 2019,5(2):259-265. DOI： 10.17775/CSEEJPES.2019.00250.

Qian Hui, Jinlu Yang, Xia Yang, et al. A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms[J]. CSEE Journal of Power and Energy Systems, 2019, 5(2): 259-265. DOI： 10.17775/CSEEJPES.2019.00250.

摘要

Abstract

In view of the variable parameters that affect the transient stability of electromagnetic torque and mechanical torque balance in AC-DC system

and the uncertainty of wind power in large-scale interconnection of wind farm. This paper proposes a linear parameter varying (LPV) robust feedback control method for transient stability of interconnected systems. The proposed LPV robust feedback control method uses the DC channel power control and the mechanical power in the interconnected system as the control target to improve the transient stability of the interconnected system with wind farm channel. Firstly

aiming at the strong nonlinear characteristics of the interconnected system

the power balance and the wind power output uncertainty in the transient process

the transient process is designed as a linear model of variable parameters. Then

the H∞ robust output feedback controller is designed according to the LPV model. The transient stability control strategy topology and transfer function of the interconnected system are proposed. Finally

the proposed scheme is verified by an interconnected system formed by four equal-value grids through AC and DC lines in a digital simulation platform. The results show that the LPV robust feedback control model proposed in this paper has better response characteristics and transient stability control effects for interconnected systems with wind power weak sending-end system.

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