An enhanced SOCP-based method for feeder load balancing using the multi-terminal soft open point in active distribution networks

Ji, Haoran; Wang, Chengshan; Li, Peng; Zhao, Jinli; Song, Guanyu; Ding, Fei; Wu, Jianzhong

doi:10.1016/j.apenergy.2017.09.051

An enhanced SOCP-based method for feeder load balancing using the multi-terminal soft open point in active distribution networks

Journal Article · Wed Sep 20 00:00:00 EDT 2017 · Applied Energy

DOI:https://doi.org/10.1016/j.apenergy.2017.09.051· OSTI ID:1399850

Ji, Haoran ^[1]; Wang, Chengshan ^[1]; ^[1]; Zhao, Jinli ^[1]; Song, Guanyu ^[1]; ^[2]; Wu, Jianzhong ^[3]

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

The integration of distributed generators (DGs) exacerbates the feeder power flow fluctuation and load unbalanced condition in active distribution networks (ADNs). The unbalanced feeder load causes inefficient use of network assets and network congestion during system operation. The flexible interconnection based on the multi-terminal soft open point (SOP) significantly benefits the operation of ADNs. The multi-terminal SOP, which is a controllable power electronic device installed to replace the normally open point, provides accurate active and reactive power flow control to enable the flexible connection of feeders. An enhanced SOCP-based method for feeder load balancing using the multi-terminal SOP is proposed in this paper. Furthermore, by regulating the operation of the multi-terminal SOP, the proposed method can mitigate the unbalanced condition of feeder load and simultaneously reduce the power losses of ADNs. Then, the original non-convex model is converted into a second-order cone programming (SOCP) model using convex relaxation. In order to tighten the SOCP relaxation and improve the computation efficiency, an enhanced SOCP-based approach is developed to solve the proposed model. Finally, case studies are performed on the modified IEEE 33-node system to verify the effectiveness and efficiency of the proposed method.

View Accepted Manuscript (DOE)

Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: AC36-08GO28308

OSTI ID:: 1399850

Alternate ID(s):: OSTI ID: 22764537

Report Number(s):: NREL/JA--5D00-70167

Journal Information:: Applied Energy, Journal Name: Applied Energy Journal Issue: C Vol. 208; ISSN 0306-2619

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Multi-objective operation optimization of active distribution network based on three-terminal flexible multi-state switch Zhang, Guorong; Wang, Yunqin; Peng, Bo Journal of Renewable and Sustainable Energy, Vol. 11, Issue 2 https://doi.org/10.1063/1.5053614	journal	March 2019
Optimal Network Reconfiguration in Active Distribution Networks with Soft Open Points and Distributed Generation Diaaeldin, Ibrahim; Abdel Aleem, Shady; El-Rafei, Ahmed Energies, Vol. 12, Issue 21 https://doi.org/10.3390/en12214172	journal	November 2019

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24 POWER TRANSMISSION AND DISTRIBUTION
distributed generator
enhanced second-order cone programming
feeder load balancing
flexible interconnection
multi-terminal soft open point

An enhanced SOCP-based method for feeder load balancing using the multi-terminal soft open point in active distribution networks

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