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ORIGINAL RESEARCH article

Front. Energy Res.
Sec. Smart Grids
Volume 12 - 2024 | doi: 10.3389/fenrg.2024.1512832
This article is part of the Research Topic Distributed Learning, Optimization, and Control Methods for Future Power Grids, Volume II View all 19 articles

Real-time Cooperative Voltage Regulation Strategy of Distribution Network Based on Approximate Dynamic Programming

Provisionally accepted
Jingjing Gu Jingjing Gu 1Mingyu Guo Mingyu Guo 2Ruijie Li Ruijie Li 2Jihe Xu Jihe Xu 1Yanyi Ye Yanyi Ye 1Zhizhong Hu Zhizhong Hu 1Shichang Cui Shichang Cui 2*
  • 1 State Grid Jiangxi Electric Power Co., Ltd, Nanchang, China
  • 2 Huazhong University of Science and Technology, Wuhan, China

The final, formatted version of the article will be published soon.

    Large-scale distributed renewable energy in the distribution network can result in reliability issues such as exceeding voltage limits and overloading power lines. Additionally, the rapid growth of electric vehicles has caused a surge in power demand in the distribution network. Therefore, how to guarantee the real-time stability of distribution network voltage under uncertain environment using available resources is an urgent problem to be solved. To this end, this paper proposes a cooperative voltage regulation of an on-load voltage regulator and electric vehicles for a distribution network considering multiple uncertainties. Firstly, an optimization model of the electric vehicle clusters considering the charging location and power is established, and the traditional on-load voltage regulator of distribution networks is also considered along with network operational constraints. Subsequently, a real-time cooperative voltage regulation strategy based on approximate dynamic programming is proposed, which employs segmented linear functions to process the value function to reduce the distribution network voltage offset and to ensure optimization accuracy. Numerical simulation results validate the feasibility and the effectiveness of the proposed cooperative voltage regulation technology involving electric vehicles and on-load tap changer in the distribution network.

    Keywords: Approximate dynamic programming, Distribution network, Electric Vehicles, Voltage optimization, onload tap changer

    Received: 17 Oct 2024; Accepted: 30 Nov 2024.

    Copyright: © 2024 Gu, Guo, Li, Xu, Ye, Hu and Cui. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Shichang Cui, Huazhong University of Science and Technology, Wuhan, China

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