Journal of South China University of Technology(Natural Science Edition) ›› 2012, Vol. 40 ›› Issue (2): 118-123.

• Power & Electrical Engineering • Previous Articles     Next Articles

Method to Evaluate Energy-Saving Potential of Regional Main Power Grid and Its Application

Jiang Jin-liang  Liu Han-lin  Zhang Yong-jun   

  1. School of Electric Power//Guangdong Key Laboratory of Clean Energy Technology,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2011-05-18 Revised:2011-09-21 Online:2012-02-25 Published:2012-01-04
  • Contact: 蒋金良(1953-) ，男，副研究员，主要从事电力市场风险、电力节能规划研究． E-mail:jljiang@ scut.edu.cn
  • About author:蒋金良(1953-) ，男，副研究员，主要从事电力市场风险、电力节能规划研究．
  • Supported by:

    国家自然科学基金资助项目( 51147006)

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Abstract:

In this paper,several effective means of reducing the active power loss and a method to evaluate the energy-saving potential are proposed for regional main power grid. The investigation mainly involves the optimal replacement of heavy transmission lines,the economic operation of the main transformer,the load distribution optimization,the optimal dispatching of power plants and the reactive power optimization. Then,a general idea of energysaving planning is presented,and a case study is performed on an actual regional main power grid to evaluate the energy-saving potential according to a series of flow and reactive power optimization calculation. Finally,a relevant energy-saving planning is worked out and its energy-saving effectiveness is verified.

Key words: power system, main power grid, energy saving, potential evaluation, reactive power optimization