On-line Identification Method for Thermally Stable Power Limit Interval of Transmission Section

Jinlong ZHANG; Yanhong BAO; Lei HUANG; Taishan XU; Jian ZHOU; Wei XU

doi:10.7500/AEPS20200201003

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On-line Identification Method for Thermally Stable Power Limit Interval of Transmission Section

Basic Research | 更新时间：2025-06-16

- On-line Identification Method for Thermally Stable Power Limit Interval of Transmission Section
- Automation of Electric Power Systems Vol. 44, Issue 14, Pages: 79-85(2020)
- 作者机构：
  
  1. 南瑞集团有限公司(国网电力科学研究院有限公司)，江苏省南京市 211106
  2. 中国南方电网电力调度控制中心，广东省广州市 510623
  3. 智能电网保护和运行控制国家重点实验室，江苏省南京市 211106
- 作者简介：
- 基金信息：
  
  China Southern Power Grid Company Limited
- DOI：10.7500/AEPS20200201003
  CLC：
- Received：01 February 2020，
  
  Revised：2020-03-16，
  
  Published Online：21 May 2020，
  
  Published：25 July 2020
- 稿件说明：
移动端阅览
张金龙,鲍颜红,黄磊等.输电断面热稳定功率极限区间在线识别方法[J].电力系统自动化,2020,44(14):79-85.

ZHANG Jinlong,BAO Yanhong,HUANG Lei,et al.On-line Identification Method for Thermally Stable Power Limit Interval of Transmission Section[J].Automation of Electric Power Systems,2020,44(14):79-85.
张金龙,鲍颜红,黄磊等.输电断面热稳定功率极限区间在线识别方法[J].电力系统自动化,2020,44(14):79-85. DOI： 10.7500/AEPS20200201003.

ZHANG Jinlong,BAO Yanhong,HUANG Lei,et al.On-line Identification Method for Thermally Stable Power Limit Interval of Transmission Section[J].Automation of Electric Power Systems,2020,44(14):79-85. DOI： 10.7500/AEPS20200201003.

摘要

针对日益复杂多变的运行情况和系统对安全稳定经济运行的要求，提出了输电断面热稳定功率极限区间在线识别方法。首先建立输电断面热稳定功率最小极限（PTTC）和最大极限（OTTC）的优化模型，然后基于关键热稳模式筛选，采用改进Benders分解法将原问题降维、解耦，最后基于集群计算平台快速求解。所提方法为调度运行人员实时准确掌握系统安全稳定边界、动态释放输电能力提供了技术手段，某实际系统的算例分析验证了提出方法的实用性和有效性。

Abstract

To meet the requirements for the safe

stable and economic operation of power system under the increasingly complex and changing operation condition

an on-line identification method for thermally stable power limit interval of transmission section is proposed. An optimization model of thermally stable power limit is established for the pessimistic total transfer capability (PTTC) and optimistic total transfer capability (OTTC) of the transmission section. Based on screening of key thermally stable mode

the improved Benders decomposition method is used to reduce and decouple the original problem. The cluster computing platform is adopted to improve the calculation speed. The proposed method provides technical means for the dispatch operators to accurately grasp the security and stability boundaries of the system in real time and dynamically release power transmission capabilities. The analysis on an actual system example verifies the practicability and effectiveness of the proposed method.

关键词

Keywords

references

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