Topology-switching Soft Open Point Assisted Real-time Cooperative Operation of Active Distribution Networks Considering Voltage Stability

Binjie Wang; Wu Tu; Xiaodong Yang; Hui Fang; Lijian Ding; Wei Lou; Qiuwei Wu; Jinyu Wen

doi:10.35833/MPCE.2025.000431

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Topology-switching Soft Open Point Assisted Real-time Cooperative Operation of Active Distribution Networks Considering Voltage Stability

Original Paper | 更新时间：2026-09-28

- Topology-switching Soft Open Point Assisted Real-time Cooperative Operation of Active Distribution Networks Considering Voltage Stability
- Journal of Modern Power Systems and Clean Energy Vol. 14, Issue 5, Pages: 1793-1805(2026)
- 作者机构：
  
  1.State Key Laboratory of High Efficiency and High Quality Electric Energy Conversion, Hefei University of Technology, Hefei 230009, China
  2.State Grid Anhui Ultra High Voltage Company, Hefei 230022, China
  3.Electric Power Research Institute of State Grid Anhui Electric Power Co., Ltd., Hefei 230601, China
  4.School of Electronics, Electrical Engineering, and Computer Science, Queen’s University Belfast, Belfast, BT8 5BN, U.K.
  5.State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
- 作者简介：
  
  Binjie Wang received the M.S. degree in control science and engineering from Zhejiang University of Technology, Hangzhou, China, in 2024. He is currently pursuing the Ph.D. degree in electrical engineering at Hefei University of Technology, Hefei, China. His research interests include three-phase unbalanced voltage security and control in distribution networks. Email:dr_wangbinjie@163.com
  Wu Tu received the M.S. degree in electrical engineering from Hefei University of Technology, Hefei, China, in 2025. His research interest includes voltage regulation in power systems. Email:W_tu224@163.com
  Xiaodong Yang received the Ph.D. degree in control science and engineering from Zhejiang University of Technology, Hangzhou, China, in 2019. He is currently an Associate Professor with the School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, China. His research interests include resilient distribution system, multi-microgrid, and power system control and optimization. Email:yang_xd90@163.com
  Hui Fang received the B.S. and M.S. degrees in electrical engineering from Hefei University of Technology, Hefei, China, in 2016 and 2019, respectively, where she is currently pursuing the Ph.D. degree in electrical engineering. She is also an Engineer with the State Grid Anhui Ultra High Voltage Company, Hefei, China. Her research interests include planning and operation optimization of distribution networks with high renewable penetration. Email:e-mail: fangh_2017@163.com
  Lijian Ding received the Ph.D. degree from North China Electric Power University, Beijing, China, in 2000. He is a Full Professor and the Dean with the School of Electrical Engineering and Automation, Hefei University of Technology, Hefei, China. His research interests include high-voltage technology, fault identification, electromagnetic compatibility, and reliability of wide bandgap power electronic system. Email:ljding@hfut.edu.cn
  Wei Lou received the Ph.D. degree from Dalian University of Technology, Dalian, China, and is currently a Senior Engineer with the Electric Power Research Institute of State Grid Anhui Electric Power Co., Ltd., Hefei, China. His research interests include intelligent operation and control of new distribution system. Email: louwei_sgcc@foxmail.com
  Qiuwei Wu received the Ph.D. degree from Nanyang Technological University, Singapore, in 2009. His research interests include decentralized and distributed optimal operation and control of power system with high penetration of renewable energy. Email: qiuwei.wu@ qub.ac.uk
  Jinyu Wen received the Ph.D. degree in electrical engineering from Huazhong University of Science and Technology (HUST), Wuhan, China, in 1998. He is currently a Professor with the School of Electrical and Electronic Engineering, HUST. His research interests include renewable energy integration, energy storage, multi-terminal high-voltage direct current, and power system operation and control. Email: jinyu.wen@hust.edu.cn
- 基金信息：
- DOI：10.35833/MPCE.2025.000431
  CLC：
- Received：15 May 2025，
  
  Revised：2025-10-09，
  
  Accepted：29 December 2025，
  
  Online First：02 February 2026，
  
  Published：15 September 2026
- 稿件说明：
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Wang Binjie,Tu Wu,Yang Xiaodong,et al.Topology-switching Soft Open Point Assisted Real-time Cooperative Operation of Active Distribution Networks Considering Voltage Stability[J].Journal of Modern Power Systems and Clean Energy,2026,14(05):1793-1805.
DOI：

Wang Binjie,Tu Wu,Yang Xiaodong,et al.Topology-switching Soft Open Point Assisted Real-time Cooperative Operation of Active Distribution Networks Considering Voltage Stability[J].Journal of Modern Power Systems and Clean Energy,2026,14(05):1793-1805. DOI： 10.35833/MPCE.2025.000431.

摘要

Abstract

The large-scale integration of photovoltaic (PV) generation poses serious challenges of voltage violations and instability risks to active distribution networks (ADNs). To address these issues

this paper proposes a topology-switching soft open point (TS-SOP) assisted real-time cooperative operation framework of ADNs. The proposed framework ensures voltage stability by explicitly incorporating voltage stability margin (VSM) constraints. A TS-SOP model is developed that enhances power flow controllability and reduces standby losses through switchable feeder interconnections and flexible converter operating modes. The proposed framework coordinates day-ahead pre-dispatch

intra-day dynamic correction

and real-time voltage regulation

featuring a two-stage volt/var control. The first stage employs model predictive control to mitigate PV-driven fluctuations

while the second stage embeds VSM constraints into droop curve parameter optimization

ensuring that local droop control actions respect the system stability limits. Simulations on a modified IEEE 33-node system demonstrates that

compared with conventional fixed-topology SOP and droop-only schemes

the proposed framework not only reduces network losses and voltage violations

but also ensures VSM compliance

effectively coordinating fast voltage regulation with system-wide stability while improving the operating economy.

关键词

Keywords

references

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