长距离输电型电网振荡中心分布及解列措施

DING Jian

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长距离输电型电网振荡中心分布及解列措施

更新时间：2025-08-13

- 长距离输电型电网振荡中心分布及解列措施
- Automation of Electric Power Systems Vol. 39, Issue 10, Pages: 186-191(2015)
- 作者机构：
  
  中国电力科学研究院,北京市,100192
- 作者简介：
- 基金信息：
- DOI：
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- Published：2015
- 稿件说明：
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DING Jian. [J]. Automation of electric power systems, 2015, 39(10): 186-191.
DOI：

DING Jian. [J]. Automation of electric power systems, 2015, 39(10): 186-191. DOI：

摘要

针对中国典型的长距离输电型互联电网——西北电网

采用时域仿真分析并结合电网物理特性的定性分析方法

基于不同水平年多个运行方式下大量仿真计算

进行西北电网失步振荡中心在不同水平年、不同故障扰动条件下分布情况的对比分析

论述了在该类型电网中失步振荡中心分布的特点、影响因素和一般特征。在此基础上

针对失步断面近区发电机组受振荡能量冲击

与振荡中心两侧振荡机群均失去同步的情况及其对常规解列措施的影响

提出了在确保主失步振荡机群合理解开前提下

按失步断面解开后形成的末端电网恢复效果原则选择解列断面或加配其他措施的改进解列措施。

Abstract

Based on time domain simulation and grid physical qualitative analysis

a large amount of simulation calculation in multiple operation modes of different years is performed on China’s northwest power grid

which is a typical long distance transmission system. The out-of-step oscillation centers distribution

influencing factors and characteristics are summarized. For generators suffering oscillation energy impact from the islanding near the oscillation center and failure to keep synchronization with either oscillated generator group

measures to improve islanding operation are taken to ensure rational islanding of the major out-of-step units prior to choosing the islanding cross section on the principle of the recovery effect of the islanded sub-grid groups. This work is supported by State Grid Corporation of China

Major Projects on Planning and Operation Control of Large Scale Grid (No. SGCC-MPLG001-2012).

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