Electric Power ›› 2016, Vol. 49 ›› Issue (3): 123-127.DOI: 10.11930/j.issn.1004-9649.2016.03.123.05

• New Energy • Previous Articles     Next Articles

Optimal Dispatch of DC Distribution Network with Distributed Energy Resources

LIANG Haifeng, LIN Jialin, LI Peng   

  1. Department of Electrical Engineering, North China Electric Power University, Baoding 071003, China
  • Received:2015-12-08 Online:2016-04-08 Published:2016-03-20
  • Supported by:
    This work is supported by National High Technology Research and Development Program of China (No. 2015AA050104).

Abstract: DC distribution network has great advantage in promoting the absorption of distributed renewable energy sources and solving the development bottleneck of the traditional AC distribution network. Based on the existing research of DC distribution network, this paper discusses the DC distribution network integrated with various distributed energy resources(DER) in terms of network building mode and system structure, and specially studies the optimal dispatch method for DC distribution network integrated with various DERs. The operating strategies of the grid-connected units and multi-period optimal dispatch strategy are designed, and a multi-objective optimal dispatch mathematical model is built with consideration of the operating cost, environmental benefit and system loss. A case study shows that the proposed method is effective in enhancing the optimal operation of DC distribution network integrated with various DERs and improving the network’s operation indicators.

Key words: DC distribution network, distributed energy resources, optimal dispatch, multi-objective

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