• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

ELECTRIC POWER CONSTRUCTION ›› 2014, Vol. 35 ›› Issue (12): 38-45.doi: 10.3969/j.issn.1000-7229.2014.12.007

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Review on Unit Commitment of Power Systems with Wind Power Integration

LIU Jizhen,WANG Haidong,LI Mingyang   

  1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China
  • Online:2014-12-01

Abstract: The penetration of large-scale renewable power alters the structure of traditional power systems and brings new challenges to their operation and control. Unit commitment is an important step of power system s economic dispatch, which involves optimizing generators start up and shut down schedules to minimize the total production cost while meeting the load demand and other constraints of power systems. Due to the stochastic and intermittent characteristics of wind power, traditional unit commitment methods are not applicable for systems with large-scale wind integration. So the studies on the unit commitment problems of such systems have important significance to deal with the random and load fluctuation of wind power, and ensure the stable and economical operation of power system. In this paper, recent researches of unit commitment with wind power were reviewed. The difficulties of unit commitment brought by wind integration into the grid were analyzed, and different modeling and solution methodologies were summarized. Finally, some suggestions for the further research in this area were proposed, which could provide references for other researchers.

Key words: unit commitment, wind power, alternate electrical power systems, chance-constrained programming, scenario tree