Optimal Distributed Configuration of Electric Heater and Heat Storage Considering Capacity Distribution

doi:10.11930/j.issn.1004-9649.201911030

Abstract

Abstract: It is an effective measure to reduce wind power curtailment by making full use of the adjustable capacity of electric heater (EH) and heat storage (HS). However, most of the current research focuses on the concentrated capacity optimization of EH and HS, which is easy to break through the constraints of grid operation. In view of this, this paper proposed an optimal configuration method of EH and HS considering capacity distribution. Taking the symplified 8-node actual power grid as an example, a comprehensive energy system mathematical model is established based on the DC power flow model, which considers the capacity, operation constraints and specific distribution of EH ans HS. On this basis, taking the optimal economic benefits as the goal, the optimal distribution model of EH and HS is given which meets a certain heat load ratio. The simulation results show that the phenomenon of wind power curtailment of the system will be reduced, and the economic benefits of the system will be significantly improved when EH and HS are in the optimal allocation.

Key words: integrated electric-thermal system, wind power curtailment, electric heater, heat storage, optimal configuration

ZHU Ziqi, ZHANG Weitao, HAN Mingliang, ZHANG Wensong. Optimal Distributed Configuration of Electric Heater and Heat Storage Considering Capacity Distribution[J]. Electric Power, 2020, 53(11): 69-77.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201911030

https://www.electricpower.com.cn/EN/Y2020/V53/I11/69

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