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author:

Zhang, Yachao (Zhang, Yachao.) [1] | Liu, Yan (Liu, Yan.) [2]

Indexed by:

EI

Abstract:

The large-scale integration of electric vehicles and distributed power sources will further exacerbate the peak valley load difference in power systems, which has posed a serious challenge to the stability and economic operation of the hybrid AC/DC distribution network. A hierarchical decentralized coordinated scheduling framework for the hybrid AC/DC distribution network coupled with the photovoltaic-storage-charging integrated stations considering multiple uncertainties is firstly proposed. In this framework, a multi-objective optimization model with the pursuit of the minimum day-ahead operation cost and peak valley difference of net load is presented for the distribution network, which is solved by the normalized normal constraint method. On the other hand, a two-stage robust optimization model considering a virtual battery model and source-load uncertainty set is established for the integrated station, which is solved by the column-and-constraint generation algorithm. Furthermore, an improved alternating direction method of multipliers is developed to solve the above decentralized optimization problem. Finally, the proposed model and solving method are validated via a modified 33-bus hybrid AC/DC distribution network coupled with 3 integrated stations. Simulation results demonstrate that the multi-objective scheduling strategy can achieve prominent effects of peak shaving and valley filling compared with the single-objective strategy. Specifically, the peak valley difference of net load has reduced by 70.1 %. Moreover, the coordination operation of various controllable devices can improve the operation flexibility of power systems and alleviate the influence of the multiple uncertainties. In addition, the solving time of the proposed method has shortened by 39.9 % compared with the traditional algorithm. © 2025 Elsevier Ltd

Keyword:

Charging stations DC distribution systems Multiobjective optimization Power distribution networks State of charge

Community:

  • [ 1 ] [Zhang, Yachao]School of Electrical Engineering and Automation, Fuzhou University, Fuzhou City; 350108, China
  • [ 2 ] [Liu, Yan]Weifang Power Supply Branch of State Grid Shandong Electric Power Company, Weifang City; 261061, China

Reprint 's Address:

  • [zhang, yachao]school of electrical engineering and automation, fuzhou university, fuzhou city; 350108, china

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Source :

Journal of Energy Storage

Year: 2025

Volume: 121

8 . 9 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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