Electric Power ›› 2014, Vol. 47 ›› Issue (3): 37-41.DOI: 10.11930/j.issn.1004-9649.2014.3.37.4

• Orginal Article • Previous Articles     Next Articles

Optimal Dispatch Model of Power Systems Integrated with Large-scale Wind Power

WANG Kun, LI Lin-chuan, SUN Qian   

  1. Key Laboratory of Smart Grid of Ministry of Education, Tianjin University,Tianjin 300072
  • Received:2013-12-28 Online:2014-03-31 Published:2015-12-18

Abstract: In order to study influences of large scale of wind power on electric power system operation in generation market, a new thermal-unit commitment model is proposed considering wind power extreme fluctuation, that is taking the minimum equivalent load as the bidding capacity to determine the start-up thermal-unit, then checking whether the preliminary boot mode can meet the maximum equivalent load, if not, curtailing wind power at the minimum equivalent load moment to increase the bidding capacity. This process is repeated until the maximum equivalent load is met. An optimal model with the goal of minimizing the generation cost is put forward, and constrained cost variable method and interior point method are used to solve the OPF model. The example shows the effectiveness and feasibility of the model and algorithm.

Key words: electric power system dispatching, wind power fluctuation, bidding, optimal power flow, constrained cost variable method

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