华南理工大学学报(自然科学版) ›› 2009, Vol. 37 ›› Issue (2): 113-117,126.

• 动力与电气工程 • 上一篇    下一篇

基于状态分离和转移费用评估的受端动态无功规划

张勇军李勇陈旭3   

  1. 1. 华南理工大学 电力学院, 广东 广州 510640; 2. 广东省 电力设计研究院, 广东 广州 510663; 3. 广东电网公司 发展规划部, 广东 广州 510600
  • 收稿日期:2008-03-07 修回日期:2008-04-28 出版日期:2009-02-25 发布日期:2009-02-25
  • 通信作者: 张勇军(1973-),男,副教授,主要从事电力系统无功优化研究. E-mail:zhangjun@scut.edu.cn
  • 作者简介:张勇军(1973-),男,副教授,主要从事电力系统无功优化研究.
  • 基金资助:

    国家自然科学基金重点资助项目(50337010);广东省自然科学基金资助项目(06025630)

Dynamic Var Planning for Receiving Ends Based on Evaluation of State Division/Transition Cost

Zhang Yong-jun1  Li Yong2  Chen Xu3   

  1. 1. School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. Guangdong Electric Power Design Institute, Guangzhou 510663, Guangdong, China ; Department of Development and Planning, Guangdong Power Grid Corporation, Guangzhou 510600, Guangdong, China
  • Received:2008-03-07 Revised:2008-04-28 Online:2009-02-25 Published:2009-02-25
  • Contact: 张勇军(1973-),男,副教授,主要从事电力系统无功优化研究. E-mail:zhangjun@scut.edu.cn
  • About author:张勇军(1973-),男,副教授,主要从事电力系统无功优化研究.
  • Supported by:

    国家自然科学基金重点资助项目(50337010);广东省自然科学基金资助项目(06025630)

摘要: 大容量受端系统的动态电压稳定性是影响电网安全稳定运行的一个重要因素,因此有必要对受端系统进行充分的动态电压支撑.定量评估动态电压支撑前后系统的各种经济损失是动态无功规划的关键.文中首先分析了多馈入受端系统受到大扰动后的状态转移过程,然后基于对状态分离费用和状态转移费用的评估,提出了完整的动态无功规划优化模型,以描述受端系统内部故障和馈入通道故障引发的各种失稳情景.最后,采用该模型对广东省受端电网2008年和2010年的动态电压支撑进行了优化计算,得到了兼具安全性和经济性的动态无功综合补偿方案.

关键词: 动态无功规划, 受端系统, 状态分离, 状态转移, 电压稳定性

Abstract:

As the dynamic voltage stability of large-scale receiving systems is a very important factor affecting the secure operation of power systems, it is necessary to provide sufficient dynamic voltage support for the receiving sys- tems. The key factor in the dynamic var planning is the quantitative economic loss evaluation without-and-with dy- namic voltage support. In this paper, the state transition course under large disturbances of multi-infeed receiving systems is analyzed. Then, based on the evaluation of state division/transition cost, a complete optimization model of dynamic var planning is presented to describe all kinds of voltage instability situations caused by both the interior faults of receiving systems and the infeed faults. The proposed model is finally applied to the optimization of the dy- namic voltage support planning of the receiving networks in Guangdong in 2008 and 2010, and a comprehensive compensation scheme with security and economic efficiency is obtained.

Key words: dynamic var'planning, receiving system, state division, state transition, voltage stability