Evaluation Method of Local Damping of Electromechanical Oscillation of Power Systems Containing Wind Turbines

SUN Zhenglong; JIANG Quanfeng; WANG Jiachen; YANG Deyou; CAI Guowei; YANG Hao

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Evaluation Method of Local Damping of Electromechanical Oscillation of Power Systems Containing Wind Turbines

更新时间：2025-12-08

- Evaluation Method of Local Damping of Electromechanical Oscillation of Power Systems Containing Wind Turbines
- Vol. 47, Issue 10, Pages: 3452-3466(2021)
- 作者机构：
  
  东北电力大学现代电力系统仿真控制与绿色电能新技术教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 October 2021，
  
  Published：2021
- 稿件说明：
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SUN Zhenglong, JIANG Quanfeng, WANG Jiachen, et al. Evaluation Method of Local Damping of Electromechanical Oscillation of Power Systems Containing Wind Turbines[J]. 2021, 47(10): 3452-3466.
DOI：

SUN Zhenglong, JIANG Quanfeng, WANG Jiachen, et al. Evaluation Method of Local Damping of Electromechanical Oscillation of Power Systems Containing Wind Turbines[J]. 2021, 47(10): 3452-3466. DOI：

摘要

精细评估风电接入后电力系统的阻尼特性

对于构建以新能源为主体的新型电力系统至关重要。机电振荡过程中始终伴随着暂态能量的耗散

能量耗散是产生阻尼的根本原因。通过计算元件级阻尼耗散

提出了含风电电力系统机电振荡局部阻尼评估方法。首先根据机电振荡分析的能量方法构建了含双馈风机的电力系统暂态能量函数;在此基础上

解析了耗散能量的时域轨迹。通过元件能量耗散与阻尼的关系

建立了阻尼贡献因子指标

用以评价系统局部阻尼贡献;通过对数据进行预处理和Prony分析

建立了基于轨迹信息的阻尼贡献因子指标计算流程。最后

通过多情况仿真分析验证了所提出局部阻尼评估方法的有效性。

Abstract

Refined evaluation of the damping characteristics of the power system when wind power is connected is essential for the construction of a new power system with new energy as the main body. The process of electromechanical oscillation is always accompanied by the dissipation of transient energy

which is the root cause of damping. By calculating the damping dissipation at the element level

this paper proposes a method for evaluating the local damping of electromechanical oscillations of power systems containing wind power. First

according to the energy method of electromechanical oscillation analysis

the transient energy function of the power system with doubly-fed induction generator is constructed; on this basis

the time-domain trajectory of the dissipated energy is analyzed. Then

according to the relationship between component energy dissipation and damping

a damping contribution factor index is established to evaluate the local damping contribution of the system; moreover

the calculation process of the damping contribution factor index based on the trajectory information is established through the preprocessing and the Prony analysis of the data.Finally

The effectiveness of the proposed local damping evaluation method is verified through simulation analysis under various conditions.

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