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Impact of Intentional Structural Changes in Distribution System Topology to Wind Turbine Siting and Sizing: A Complex Network Approach

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Weerasinghe D. J., Pahwa S., Miller R. D., Scoglio C.

Smart Grid

2015

vol. 2

issue 1

Integration of renewable distributed generation (RDG) units in radial distribution systems (RDS) has been increasingly investigated by researchers since 1995. Aging of the United States power system infrastructure intensifies line and equipment failures. Power flow reroutes which utilize switching mechanisms provide an essential service by rerouting power to the end-user, thus ensuring service reliability of the services but changing the topology of the original network. Our study proposes a novel analytical method called combined electrical topology based on electrical centrality to site RDG (wind turbines) to minimize the impact of intentional structural changes in a RDS. In order to place RDG units, the magnitude of the impedance matrix is used to identify electrically central nodes common to multiple possible configurations of power systems created by intentional structural changes. Wind turbine sizes are identified by an exhaustive search method. Results indicate that the proposed method can be used to install wind turbines to minimize the system power loss, and improve voltage profile and power quality of the RDS, minimizing the effect of intentional structural changes. Also results indicate that nodes towards the end of the branches are more electrically central than other nodes.

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1 Smart Grid

1 2015

1 Miller R. D.

1 Pahwa S.

1 Scoglio C.

1 Weerasinghe D. J.

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Impact of Intentional Structural Changes in Distribution System Topology to Wind Turbine Siting and Sizing: A Complex Network Approach