ISSN 1000-1026
CN 32-1180/TP
  • ISSN 1000-1026
  • CN 32-1180/TP

Citation: LI ZIHAO,LI TIE,WU WENCHUAN,ZHANG BOMING,JIANG FENG,CUI DAI.Minkowski Sum Based Flexibility Aggregating Method of Load Dispatching for Heat Pumps[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20180830010 copy

Minkowski Sum Based Flexibility Aggregating Method of Load Dispatching for Heat Pumps

  • Received Date: August 30, 2018
    Accepted Date: October 08, 2018
    Available Online: 2019-01-11

  • Abstract:

        With the implementation of the "Coal to Electricity" project, the heat pump load in the distribution network increases significantly, and the large peak-valley-gap of heating load leads to low utilization of equipment. At the same time, small photovoltaic power generation is widely connected to the distribution network, inducing photovoltaic energy elimination difficulties. In this paper, a geometry based flexibility aggregating method and revenue settlement for heat pumps joining in day-ahead dispatch of distribution network is proposed. In order to accurately describe the polymeri-zation flexibility of the heat pump load cluster, this paper uses the constraint space superposition method based on Minkowski sum, and describes the heat pump cluster as a "virtual synchronous machine" or "virtual battery" model by looking for its maximal inner cube or rectangular pyramid simplification constraint. Furthermore, a method of income distribution among users based on approximated sharply value is proposed. Case study verifies our method with an IEEE-33 buses system.

  • Keywords:

    active distribution network; heat pump; day-ahead scheduling; virtual synchronous machine; virtual battery; Min-kowski Sum; Sharply Value

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