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Network reconfiguration in distribution systems for loss reduction and load balancing

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2 Author(s)
Baran, M.E. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA ; Wu, F.F.

A general formulation of the feeder reconfiguration problem for loss reduction and load balancing is given, and a novel solution method is presented. The solution uses a search over different radial configurations created by considering switchings of the branch exchange type. To guide the search, two different power flow approximation methods with varying degrees of accuracy have been developed and tested. The methods are used to calculate the new power flow in the system after a branch exchange and they make use of the power flow equations developed for radial distribution systems. Both accuracy analysis and the test results show that estimation methods can be used in searches to reconfigure a given system even if the system is not well compensated and reconfiguring involves load transfer between different substations. For load balancing, a load balance index is defined and it is shown that the search and power flow estimation methods developed for power loss reduction can also be used for load balancing since the two problems are similar

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Power Delivery, IEEE Transactions on  (Volume:4 ,  Issue: 2 )