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The Implementation of a New Scheme Based on Integrated Functions of Back-to-Back Power Grid Synchronization Parallel and UPFC

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6 Author(s)
Jia-Jun Liu ; Inst. of Water Resources & Hydro-Electr. Eng., Xi'an Univ. of Technol., Xi'an, China ; Ying Qi ; Mei-juan Xue ; Li-xiao Yao
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According to the theory of Voltage Source Converter (VSC) can control active power and reactive power simultaneously and independently, back-to-back VSC is applied to the synchronous parallel operation in power grids. Combined with the characteristic of UPFC circuit structure, this paper proposes a new scheme based on power transmission which can realize integrated functions of power system synchronization and UPFC. The proposal realizes the control to tie-line when back-to-back VSC accomplishes the synchronization between grids, the device quits synchronization and transfers to another running -UPFC. The device can be fully used and maximize overall efficiency can be made. This proposal has a good application value and application prospect.

Published in:

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Date of Conference:

25-28 March 2011