RESEARCH ON OPTIMIZATION STRATEGY OF HESS SITE AND CAPACITY SELECTION IN DISTRIBUTION SYSTEM WITH RENEWABLE ENERGY ACCESS

Sun Donglei; Zhao Long; Sun Kaiqi; Wang Yan; Sun Yi; Wang Yao

doi:10.19912/j.0254-0096.tynxb.2022-1445

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (1) : 423-432. DOI: 10.19912/j.0254-0096.tynxb.2022-1445

RESEARCH ON OPTIMIZATION STRATEGY OF HESS SITE AND CAPACITY SELECTION IN DISTRIBUTION SYSTEM WITH RENEWABLE ENERGY ACCESS

Sun Donglei¹, Zhao Long¹, Sun Kaiqi², Wang Yan¹, Sun Yi¹, Wang Yao¹

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Abstract

To select HESS site and capacity in distribution system with renewable energy access, a two-layer optimization model considering the property of HESS is constructed, which thereby improving the operation economy and stability of the system. Firstly, this paper selects battery and super-capacitor to form HESS and connect it to the distribution system to give full play to the high-efficiency charging and discharging and high-energy throughput characteristics of HESS. Secondly, a two-layer optimization model for HESS site and capacity selection considering the property of HESS is proposed. The upper layer aims at the minimum LCC of the HESS, and take the configuration capacity and access location as the optimization variables, in which the operation cost needs to be calculated by the lower layer; the lower optimization aims to minimize the network loss, establish a SOCP model, and feed backs the planning results to the upper layer. Finally, case studies are carried out on the IEEE 33-bus distribution network, compared with ESS, the proposed HESS and its configuration strategy can effectively improve the operational stability of the distribution network under the high proportion of renewable energy access, while ensuring the operation economy of the distribution network.

Key words

renewable energy / energy storage / site selection / life cycle cost / SOCP / distribution system

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Sun Donglei, Zhao Long, Sun Kaiqi, Wang Yan, Sun Yi, Wang Yao. RESEARCH ON OPTIMIZATION STRATEGY OF HESS SITE AND CAPACITY SELECTION IN DISTRIBUTION SYSTEM WITH RENEWABLE ENERGY ACCESS[J]. Acta Energiae Solaris Sinica. 2024, 45(1): 423-432 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1445

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