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Control Strategy for Enhancing Voltage Quality in Distribution Network by Orderly Charging Based on Equivalent Mapping Theory
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Zhihao NING  Member, CPSS1, Xiaoyuan WANG1, Jiran ZHU1, Hui XIAO2, Linjun ZENG2, 3
Journal of Power Supply | 2025, 23(3) : 162 - 172
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Journal of Power Supply | 2025, 23(3): 162-172
• Special Issue on Analysis and Control of Power Quality in New Power Systems •
Control Strategy for Enhancing Voltage Quality in Distribution Network by Orderly Charging Based on Equivalent Mapping Theory
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Zhihao NING  Member, CPSS1, Xiaoyuan WANG1, Jiran ZHU1, Hui XIAO2, Linjun ZENG2, 3
Affiliations
  • 1.Electric Power Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007, China
  • 2.State Key Laboratory of Disaster Prevention & Reduction for Power Grid (Changsha University of Science & Technology), Changsha 410114, China
  • 3.College of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114, China
Published: 2025-05-30 doi: 10.13234/j.issn.2095-2805.2025.3.162
Outline
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The widespread adoption of electric vehicles (EVs) has significantly accelerated the electrical transition of transportation, which brings challenges to distribution network such as "peak-on-peak" demand and deterioration of power quality. Moreover, the power and traffic systems belong to two different operators, so it is difficult to perform centralized optimization. To address these issues, a novel non-iterative coordinated optimization method for power-traffic based on the equivalent mapping theory is proposed. First, a decoupled framework for power-traffic incorporating the power at charging stations is established, and the optimal operation model of distribution network is transformed into a piecewise cost function with boundary charging station power and the corresponding equivalent constraint sets, thereby achieving the decoupled and coordinated optimization of power-traffic systems. Second, by exploiting the intrinsic relationship between boundary cost functions and nodal electricity prices, an optimized charging strategy for EVs which incorporates price signals is put forward, so as to alleviate the overload issues in distribution network. Finally, the effectiveness of the proposed method is validated through a case study, and results also demonstrate that the orderly charging strategy can effectively guide the EV charging behavior and improve the voltage quality.

Electric vehicle (EV)  /  traffic network  /  distribution network  /  orderly charging  /  voltage quality
宁志毫中国电源学会会员, 王小源, 朱吉然, 肖辉, 曾林俊. 基于等值映射理论的有序充电提升配电网电压质量控制策略研究. 电源学报, 2025 , 23 (3) : 162 -172 . DOI: 10.13234/j.issn.2095-2805.2025.3.162
Zhihao NING, Xiaoyuan WANG, Jiran ZHU, Hui XIAO, Linjun ZENG. Control Strategy for Enhancing Voltage Quality in Distribution Network by Orderly Charging Based on Equivalent Mapping Theory[J]. Journal of Power Supply, 2025 , 23 (3) : 162 -172 . DOI: 10.13234/j.issn.2095-2805.2025.3.162
Funding
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  • State Grid Hunan Electric Power Co., Ltd. Science and Technology Project (Major Project)(5216A5240006)
Appendix
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Year 2025 volume 23 Issue 3
57
7
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Article Info
doi: 10.13234/j.issn.2095-2805.2025.3.162
  • Receive Date：2024-12-03
  • Online Date：2026-10-26
  • Published：2025-05-30
Article Data
Affiliations
History
  • Received：2024-12-03
  • Revised：2025-03-13
  • Accepted：2025-03-26
Funding
State Grid Hunan Electric Power Co., Ltd. Science and Technology Project (Major Project)(5216A5240006)
Affiliations
    1.Electric Power Research Institute, State Grid Hunan Electric Power Co., Ltd., Changsha 410007, China
    2.State Key Laboratory of Disaster Prevention & Reduction for Power Grid (Changsha University of Science & Technology), Changsha 410114, China
    3.College of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114, China
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