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Journal of the Korean Institute of Illuminating and Electrical Installation Engineers

ISO Journal TitleJ Korean Inst. IIIum. Electr. Install. Eng.
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Title Study on Transient Improvement through Governor Control under Asynchronous Transition of CTTS
Authors Byoung-Wook Kang ; Hui-Seok Chai ; Woon-Ki Han ; Hyun-Sung Lim ; Seung-Ok Kwon ; Jae-Chul Kim
DOI http://dx.doi.org/10.5207/JIEIE.2015.29.11.047
Page pp.47-52
ISSN 1225-1135
Keywords Emergency generator ; Asynchronous transition ; Governor control ; Automatic Voltage Regulator
Abstract This paper derives the problems that occur when asynchronous transfer in case of phase, frequency, voltage between the emergency generator and the grid and proposed the countermeasure to solve this problem when the transfer switch replace ATS(Automatic Transfer Switch) with CTTS(Closed Transition Transfer Switch) for the non-interrupting switching. In order to simulate above cases, modelling was used the transient analysis program PSCAD/EMTDC. By using this, the customer installed emergency generator and the grid was implemented. We compared three cases of asynchronous transition based on the basic case and proposed improvement by controlling the governor of emergency generator.