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Method to Eliminate Flux Linkage DC Component in Load Transformer for Static Transfer Switch
Joint Authors
He, Yu
Mao, Chengxiong
Lu, Jiming
Wang, Dan
Tian, Bing
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-16
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Many industrial and commercial sensitive loads are subject to the voltage sags and interruptions.
The static transfer switch (STS) based on the thyristors is applied to improve the power quality and reliability.
However, the transfer will result in severe inrush current in the load transformer, because of the DC component in the magnetic flux generated in the transfer process.
The inrush current which is always 2~30 p.u.
can cause the disoperation of relay protective devices and bring potential damage to the transformer.
The way to eliminate the DC component is to transfer the related phases when the residual flux linkage of the load transformer and the prospective flux linkage of the alternate source are equal.
This paper analyzes how the flux linkage of each winding in the load transformer changes in the transfer process.
Based on the residual flux linkage when the preferred source is completely disconnected, the method to calculate the proper time point to close each phase of the alternate source is developed.
Simulation and laboratory experiments results are presented to show the effectiveness of the transfer method.
American Psychological Association (APA)
He, Yu& Mao, Chengxiong& Lu, Jiming& Wang, Dan& Tian, Bing. 2014. Method to Eliminate Flux Linkage DC Component in Load Transformer for Static Transfer Switch. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1050779
Modern Language Association (MLA)
He, Yu…[et al.]. Method to Eliminate Flux Linkage DC Component in Load Transformer for Static Transfer Switch. The Scientific World Journal No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1050779
American Medical Association (AMA)
He, Yu& Mao, Chengxiong& Lu, Jiming& Wang, Dan& Tian, Bing. Method to Eliminate Flux Linkage DC Component in Load Transformer for Static Transfer Switch. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1050779
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1050779