{"title":"\\(\\Delta \\)-Y Transformer-based Railway Co-phase Power System","authors":"Aliasgar P. Shayer, Mahmadasraf A. Mulla","doi":"10.1007/s13369-024-09055-w","DOIUrl":null,"url":null,"abstract":"<div><p>In a railway traction substation, power electronics devices are used in conjunction with a special transformer of a traction substation to mitigate power quality issues. To study the use of power electronics devices with conventional transformer, this research studies the use of a conventional Delta-star transformer along with power electronics converters. The system forms a co-phase system using single-phase back-to-back converters, which addresses the issue of current unbalance and power factor correction. The control theory derives the value of currents to be drawn from the secondary of traction transformer so as to draw balanced power from the three phases of the grid supply. Accordingly, a control algorithm is developed which calculates the reference converter currents and operates the converters. Validation of control theory is done analytically. Simulation and real-time hardware-in-loop experimentation are performed under different loading conditions. The steady-state and dynamic behavior of the system is studied to validate the proposed control algorithm. The work is presented as a proof of concept.</p></div>","PeriodicalId":54354,"journal":{"name":"Arabian Journal for Science and Engineering","volume":null,"pages":null},"PeriodicalIF":2.6000,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arabian Journal for Science and Engineering","FirstCategoryId":"103","ListUrlMain":"https://link.springer.com/article/10.1007/s13369-024-09055-w","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
In a railway traction substation, power electronics devices are used in conjunction with a special transformer of a traction substation to mitigate power quality issues. To study the use of power electronics devices with conventional transformer, this research studies the use of a conventional Delta-star transformer along with power electronics converters. The system forms a co-phase system using single-phase back-to-back converters, which addresses the issue of current unbalance and power factor correction. The control theory derives the value of currents to be drawn from the secondary of traction transformer so as to draw balanced power from the three phases of the grid supply. Accordingly, a control algorithm is developed which calculates the reference converter currents and operates the converters. Validation of control theory is done analytically. Simulation and real-time hardware-in-loop experimentation are performed under different loading conditions. The steady-state and dynamic behavior of the system is studied to validate the proposed control algorithm. The work is presented as a proof of concept.
期刊介绍:
King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE).
AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.