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New approach to determine capacity of dynamic reactive power compensation using economic voltage difference

  • Feng Qian
  • , Jian Chao Zheng
  • , Guang Fu Tang
  • , Zhi Yuan He
  • State Grid Corporation of China

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Aiming at the limitation in designing reactive compensation arrangement in power grids of China at present, a novel algorithm was proposed to determine dynamic reactive power compensation capacity according to economic voltage difference. The present situations of reactive power compensation in power grids of China were analyzed and the concept of economic voltage difference was introduced based on basic principles of it. The calculation formula for reasonable range of dynamic reactive power compensation capacity was derived by using surplus reactive power of transmission line, reactive power loss of transformer and load of various operational modes in order to reduce active power loss and voltage drop caused by transmitting reactive power. The proposed method can effectively reduce line loss and investment of reactive power compensation in power grids, improve voltage quality and operation benefits. Simulation results testify the validity and practicality of the proposed method.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalZhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Volume29
Issue number1
StatePublished - 5 Jan 2009

Keywords

  • Active power loss
  • Capacity
  • Economic voltage difference
  • Reactive power compensation
  • Voltage quality

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