基于广域信息的电力系统阻尼控制器反馈信号选择

HE Jingbo; LI Licheng; CHEN Huixiang; WU Xiaochen; LI Peng

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基于广域信息的电力系统阻尼控制器反馈信号选择

更新时间：2025-08-13

- 基于广域信息的电力系统阻尼控制器反馈信号选择
- Automation of Electric Power Systems Vol. 31, Issue 9, Pages: 6-10(2007)
- 作者机构：
  
  1. 清华大学电机系,北京市,100084
  2. 中国南方电网有限责任公司,广东省,广州市,510623
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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HE Jingbo, LI Licheng, CHEN Huixiang, et al. [J]. Automation of electric power systems, 2007, 31(9): 6-10.
DOI：

HE Jingbo, LI Licheng, CHEN Huixiang, et al. [J]. Automation of electric power systems, 2007, 31(9): 6-10. DOI：

摘要

广域阻尼控制器（WADC）是抑制电力系统区间低频振荡模式的一种新技术，区别于传统的本地控制器设计，存在大量的不同种类反馈信号之间如何选择的问题。文中提出以WADC单位控制输出量获得最大阻尼为目标，基于线性系统的理论推导得到了用于WADC广域反馈信号选择的主模比指标，并且给出了基于Prony辨识的可用于复杂系统中的主模比计算方法。在2006年南方电网交直流混联系统中，通过特征值分析和时域仿真验证了最大主模比指标的有效性。

Abstract

A new approach is proposed to choose wide area feedback signals for wide area damping controller（WADC） in bulk power systems. Firstly， a novel signal selection benchmark is proposed， which is related to modulation amplitude of WADC and reflects the real control cost. According to this criterion， an index named dominant mode ratio（DMR） is proposed using linear system theory， and the algorithm based on time-domain curves and Prony analysis is also presented. Then， studies are carried out for the China Southern Power Grid（CSG） when using DMR to select an optimal wide area auxiliary input signal for the modulation control of Gui-Guang I HVDC-link to damp the inter-area oscillation between Yunnan and Guizhou. The effectiveness of DMR index is validated through time domain simulation and eigenvalue analysis.

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