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Modelling and control of a railway power conditioner in co-phase traction power system under partial compensation
Ning-Yi Dai; Man-Chung Wong; Keng-Weng Lao; Chi-Kong Wong
2014-05
Source PublicationIET Power Electronics
ISSN1755-4535
Volume7Issue:5Pages:1044-1054
Abstract

Co-phase traction power supply system provides continuous power to traction loads without neutral sections. In order to reduce system unbalance, compensate reactive power and harmonics, a railway power conditioner (RPC) operates together with traction transformer in each substation. In the past study, the RPC is designed to achieve three-phase balance and unity power factor (PF) at the grid side. As a result, its rating is high. According to the power quality tariff plan in China, the penalty for reactive power can be avoided if the PF is higher than 0.9. In this study, a grid-side PF of 0.9 is achieved via different control approaches after analysis. Among these approaches, the rating of the RPC in the worst case is more than twice that in the best case. Hence, selection of a suitable control parameter is necessary. The minimum rating of the RPC is achieved by setting the power angle of phases A and B lagging and the power angle of phase C leading under partial compensation. The rating of the RPC is reduced to 70% by setting PF to 0.95 instead of 1. Simulation and experimental results are provided to show the validity of the modelling, design and control method.

DOI10.1049/iet-pel.2013.0396
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000335262200002
PublisherINST ENGINEERING TECHNOLOGY-IET, MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
The Source to ArticleScopus
Fulltext Access
Citation statistics
Cited Times [WOS]:36   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorNing-Yi Dai
AffiliationDepartment of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, People’s Republic of China
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Ning-Yi Dai,Man-Chung Wong,Keng-Weng Lao,et al. Modelling and control of a railway power conditioner in co-phase traction power system under partial compensation[J]. IET Power Electronics,2014,7(5):1044-1054.
APA Ning-Yi Dai,Man-Chung Wong,Keng-Weng Lao,&Chi-Kong Wong.(2014).Modelling and control of a railway power conditioner in co-phase traction power system under partial compensation.IET Power Electronics,7(5),1044-1054.
MLA Ning-Yi Dai,et al."Modelling and control of a railway power conditioner in co-phase traction power system under partial compensation".IET Power Electronics 7.5(2014):1044-1054.
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