Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (2): 113-117,126.

• Power & Electrical Engineering • Previous Articles     Next Articles

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）

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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