南方电网多直流调制控制的交互影响与协调

LI Peng; WU Xiaochen; ZHANG Yao; JIN Xiaoming; XU Aidong

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南方电网多直流调制控制的交互影响与协调

更新时间：2025-08-13

- 南方电网多直流调制控制的交互影响与协调
- Automation of Electric Power Systems Vol. 31, Issue 21, Pages: 90-93(2007)
- 作者机构：
  
  1. 南方电网技术研究中心,广东省,广州市,510623
  2. 华南理工大学电力学院,广东省,广州市,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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LI Peng, WU Xiaochen, ZHANG Yao, et al. [J]. Automation of electric power systems, 2007, 31(21): 90-93.
DOI：

LI Peng, WU Xiaochen, ZHANG Yao, et al. [J]. Automation of electric power systems, 2007, 31(21): 90-93. DOI：

摘要

受限于现有的小扰动分析软件无法对高压直流输电系统（HVDC）控制回路建模，直流控制器的分析和设计严重依赖于时域仿真，无法获得对于控制器性能的机理性认识。文中利用NETOMAC仿真软件中NEVA的自定义控制器功能，定义了新的HVDC控制回路模型。利用根轨迹技术，分析了2008年度南方电网3回直流调制采用广域信号反馈控制时各自的不同性能，发现了由于HVDC调制引发的模态谐振现象，这种现象的存在使得直流调制控制的阻尼效果被削弱。最后，提出一种利用多直流协调控制消除模态谐振的方案，并通过NETOMAC的时域仿真加以验证。

Abstract

Due to the limitation of modeling of HVDC control loops in small signal stability analysis， current works on HVDC modulation controller design strongly depend on time-domain simulation， which cannot give more insight into mechanism of controllers. The paper induces a novel HVDC modulation loop model through customized control function of NEVA. By using the root locus method， different impacts of three-HVDC modulation control of China Southern Power Grid（CSG） with wide-area feedback signals on CSG's oscillation modes are analyzed. A strong nonlinear modal interaction phenomenon called‘modal resonance' is observed， and modal resonance may result in deterioration of damping. Finally， a scheme of coordination of multiple HVDC modulation to mitigate modal resonance is proposed， which is validated by NETOMAC time-domain simulation.

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