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Title: Centralized control of transformer tap changing for voltage stability enhancement
Authors: Chang, C.S. 
Huang, J.S.
Issue Date: Oct-1999
Citation: Chang, C.S.,Huang, J.S. (1999-10). Centralized control of transformer tap changing for voltage stability enhancement. Electric Machines and Power Systems 27 (10) : 1041-1054. ScholarBank@NUS Repository.
Abstract: This paper presents a novel centralized control scheme for load tap-changing transformers. To implement the coordinated tap changing, by taking into account interaction among different transformers, the developed scheme employs successive linearization and variable-structure control techniques. The designed mechanism can be a partial implementation of the full scheme. With appropriate simplification, only the local information, associated with the participating transformers, is needed to perform the control. In preventing the voltage instability, brought about by lack of coordination among tap changers, the developed scheme is superior to conventional decentralized methods.
Source Title: Electric Machines and Power Systems
ISSN: 0731356X
Appears in Collections:Staff Publications

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