Dispatching Strategy for Integrated Electric and Heating Energy System Including Renewable Energy and CAES Power Station

doi:10.11930/j.issn.1004-9649.202104022

Abstract

Abstract: Considering the insufficient energy utilization problem caused by the random connection of electric vehicle (EV) loads to the power system with high penetration rate of renewable energy, and the increasing uncertainties of the entire integrated energy system resulting from the interconnection of the electric and heating networks. A dispatching strategy is proposed for the electric and heating integrated energy system including renewable energy and CAES (compressed air energy storage) power stations. According to the power load demand, two dispatching modes are divided. At the energy end and energy storage end, the CAES and S-CAES (solar and compressed air energy storage) are used to enhance the coupling between the power grid and the heating network to achieve the efficient conversion and utilization of different energy sources. At the load end, the EV load is divided into orderly and disorder EV loads according to their controllabilities, and different operating functions are given to the S-CAES according to different modes and different optimal dispatching models are provided. Finally, the Matlab is used to perform simulation analysis under different load modes, The simulation results have verified the effectiveness and superiority of the proposed strategy in increasing renewable energy consumption and reducing overall costs.

Key words: renewable energy, electric and heating integrated energy system, overall cost, CAES, dispatching strategy

HU Funian, XU Weicheng, CHEN Jun. Dispatching Strategy for Integrated Electric and Heating Energy System Including Renewable Energy and CAES Power Station[J]. Electric Power, 2022, 55(11): 129-141.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202104022

https://www.electricpower.com.cn/EN/Y2022/V55/I11/129

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