Coordinated Control Method of Voltage and Reactive Power for Active Distribution Networks Based on Soft Open Point

Journal Article · Wed Mar 22 00:00:00 EDT 2017 · IEEE Transactions on Sustainable Energy

DOI:https://doi.org/10.1109/TSTE.2017.2686009· OSTI ID:1394744

Li, Peng ^[1]; Ji, Haoran ^[2]; Wang, Chengshan ^[1]; Zhao, Jinli ^[1]; Song, Guanyu ^[1]; Ding, Fei ^[3]; Wu, Jianzhong ^[4]

---

1. Tianjin Univ. (China). Key Lab. of Smart Grid of Ministry Education
2. Tianjin Univ. (China). Key Lab. of Smart Grid of Ministry of Education
3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
4. Cardiff Univ., Cardiff (United Kingdom). Institute of Energy, School of Engineering

The increasing penetration of distributed generators (DGs) exacerbates the risk of voltage violations in active distribution networks (ADNs). The conventional voltage regulation devices limited by the physical constraints are difficult to meet the requirement of real-time voltage and VAR control (VVC) with high precision when DGs fluctuate frequently. But, soft open point (SOP), a flexible power electronic device, can be used as the continuous reactive power source to realize the fast voltage regulation. Considering the cooperation of SOP and multiple regulation devices, this paper proposes a coordinated VVC method based on SOP for ADNs. Firstly, a time-series model of coordi-nated VVC is developed to minimize operation costs and eliminate voltage violations of ADNs. Then, by applying the linearization and conic relaxation, the original nonconvex mixed-integer non-linear optimization model is converted into a mixed-integer second-order cone programming (MISOCP) model which can be efficiently solved to meet the requirement of voltage regulation rapidity. Here, we carried out some case studies on the IEEE 33-node system and IEEE 123-node system to illustrate the effectiveness of the proposed method.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: National Key Technology Research and Development Program of China; National Natural Science Foundation of China (NSFC); USDOE
• Grant/Contract Number: AC36-08GO28308
• OSTI ID: 1394744
• Report Number(s): NREL/JA-5D00-68178; MainId:21991; UUID:c82a8049-8d0d-e711-8943-d89d67132a6d; MainAdminID:10467
• Journal Information: IEEE Transactions on Sustainable Energy, Vol. 8, Issue 4; ISSN 1949-3029
• Publisher: IEEE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
active distribution network
ADN
distributed generator
DG
soft open point
SOP
voltage and VAR control
VVC
mixed-integer second-order cone programming
MISOCP