Journal of South China University of Technology (Natural Science Edition) ›› 2014, Vol. 42 ›› Issue (4): 26-33.doi: 10.3969/j.issn.1000-565X.2014.04.005

• Power & Electrical Engineering • Previous Articles     Next Articles

Effect of Wind- Storage Complementary Microgrid on Reliability of Power Distribution Network

Zeng Ai- dong1 Xu Qing- shan1 Ding Mao- sheng2 Lin Zhang- sui3 Xu Xiao- hui4   

  1. 1.School of Electrical Engineering,Southeast University,Nanjing 210096,Jiangsu,China;2.Ningxia Electric Power Company of State Grid,Yinchuan 750001,Ningxia,China;3.Power Economic Research Institute,State Grid Fujian Electric Power Co.,Ltd.,Fuzhou 350012,Fujian,China;4.China Electric Power Research Institute (Nanjing),Nanjing 210003,Jiangsu, China
  • Received:2013-09-23 Revised:2014-03-07 Online:2014-04-25 Published:2014-03-03
  • Contact: 曾艾东(1991-)，男，博士生，主要从事新能源发电及微电网运行、规划与控制研究． E-mail:zengaidong@foxmail.com
  • About author:曾艾东(1991-)，男，博士生，主要从事新能源发电及微电网运行、规划与控制研究．
  • Supported by:

    国家科技支撑计划项目(2013BAA01B00);国家自然科学基金资助项目(51377021);国家电网公司科技项目(52182013000V)

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Abstract:

With the application and development of distributed generation technologies,a large number of distribu-ted generators (DGs) are installed in the form of microgrid.In this paper,first,by taking the wind- storage com-plementary microgrid as an example and by considering the operation mode of the wind- storage complementary mi-crogrid in distribution networks,several reliability indices of load and system are calculated via the Monte Carlosimulation algorithm.Next,after analyzing the characteristics of random power sources,a reliability evaluationmodel of the wind- storage complementary microgrid is established.Then,a site selection of wind- power DGs is ca-rried out according to the simulated reliability results,and an island is planned after determining the energy storagecapacity.Moreover,the possibility of malfunction of microgrids after the island formation, which is due to the ru-nning out of energy storage caused by the time- varying load and the DG output,is discussed.Finally,a reliabilitysimulation is performed with the Monte Carlo method for the power distribution network with the wind- storage com-plementary microgrid.It is found that the reliability greatly improves when a microgrid is connected.

Key words: power distribution network, wind- storage complementary microgrid, reliability evaluation, Monte Carlosimulation, islanding algorithm

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