Co-optimising distribution network adequacy and security by simultaneous utilisation of network reconfiguration and distributed energy resources

• Published in: IET generation, transmission & distribution Vol. 13; no. 20; pp. 4747 - 4755
• Main Authors: Ahmadi, Seyed-Alireza, Vahidinasab, Vahid, Ghazizadeh, Mohammad Sadegh, Mehran, Kamyar, Giaouris, Damian, Taylor, Phil
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 22.10.2019
• Subjects: 83‐bus distribution network; active distribution network; DERs; distributed energy resources; distributed power generation; distribution network security; distribution networks; fast reconfiguration method; graph theory; IEEE 33‐bus distribution network; line security index; network reconfiguration; network reliability; optimisation; optimising distribution network adequacy; power distribution economics; power distribution planning; power distribution reliability; power system security; reconfiguration process; reconfiguration studies; Research Article; security concerns; simultaneous reconfiguration; simultaneous utilisation; smart power grids; distribution networks; graph theory; power distribution planning; smart power grids; distributed power generation; optimisation; fast reconfiguration method; reconfiguration studies; IEEE 33-bus distribution network; optimising distribution network adequacy; simultaneous reconfiguration; active distribution network; security concerns; 83-bus distribution network; distribution network security; distributed energy resources; network reconfiguration; power distribution economics; line security index; power system security; network reliability; simultaneous utilisation; power distribution reliability; DERs; reconfiguration process
• ISSN: 1751-8687; 1751-8695; 1751-8695
• DOI: 10.1049/iet-gtd.2019.0824

With the evolution of smart grids, penetration of distributed energy resources (DERs) in the distribution networks has become ever-increasing problem. To improve network reliability, the complexity of the two important aspects of adequacy and security must be well assessed. There is a trade-off between adequacy of DERs, and the distribution network security, i.e. improving the adequacy can reduce the security. In this study, enhancement of the distribution network adequacy and security is proposed. In this regard, capacity of simultaneous reconfiguration and DERs sizing are utilised to improve the adequacy and security of an active distribution network. In the reconfiguration process, graph theory concept is adopted to implement a fast reconfiguration method. Since DERs are active, a combined bus and line security index is used to overcome security concerns of their existence. The IEEE 33-bus distribution network as a widely used standard test system in reconfiguration studies, and a practical 83-bus distribution network of Taiwan Power Company (TPC) which is a part of a real distribution network, are used to test the performance of the proposed method. The simulation results demonstrate the performance of the proposed framework.