NDLI: Optimal Capacitor Placement to Distribution Transformers for Power Loss Reduction in Radial Distribution Systems

Content Provider	IEEE Xplore Digital Library
Author	Yan Xu Zhao Yang Dong Kit Po Wong Liu, E. Yue, B.
Copyright Year	1969
Abstract	Deploying shunt capacitor banks in distribution systems can effectively reduce the power loss and provide additional benefits for system operation. In practice, the power loss on distribution transformers can account for a considerable portion of the overall loss. This paper proposes a method for optimal placement of capacitor banks to the distribution transformers to reduce power loss. The capacitor bank locations are considered at the low-side of transformers. The net present value (NPV) criterion is adopted to evaluate the cost benefit of the capacitor installation project. First, an explicit formula for directly calculating the power loss of radial distribution systems is derived. Then, the optimal capacitor bank placement is formulated as a mixed-integer programming (MIP) model maximizing the NPV of the project subject to certain constraints. The model is suitable for being solved by commercial MIP packages, and the operational control of the capacitor banks to maximize the power loss reduction can be simply achieved by local automatic switching according to VAR measurements. The proposed method has been practically applied in the Macau distribution system, and the simulation results show that the proposed method is computationally efficient, and a considerable positive NPV can be obtained from the optimal capacitor bank placement.
Sponsorship	IEEE Power Engineering Society
Starting Page	4072
Ending Page	4079
Page Count	8
File Size	1156929
File Format	PDF
ISSN	08858950
Volume Number	28
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Capacitors Reactive power Switches Mathematical model Investment Voltage control radial distribution system Capacitor placement distribution transformer (TR) mixed-integer programming (MIP) net present value (NPV)
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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