\(\Delta \)-Y Transformer-based Railway Co-phase Power System

IF 2.6 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Arabian Journal for Science and Engineering Pub Date : 2024-05-08 DOI:10.1007/s13369-024-09055-w
Aliasgar P. Shayer, Mahmadasraf A. Mulla
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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.

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基于 $$\Delta $$ -Y 变压器的铁路同相供电系统
在铁路牵引变电站中,电力电子设备与牵引变电站的特殊变压器结合使用,可减轻电能质量问题。为了研究电力电子设备与传统变压器的结合使用,本研究将传统的三角星型变压器与电力电子变流器结合使用。该系统利用单相背靠背变流器形成一个同相系统,从而解决了电流不平衡和功率因数校正问题。控制理论推导出牵引变压器次级的电流值,以便从电网电源的三个相位汲取平衡的电力。因此,开发了一种控制算法,用于计算参考变流器电流和操作变流器。控制理论的验证是通过分析完成的。在不同负载条件下进行了仿真和实时硬件在环实验。研究了系统的稳态和动态行为,以验证所提出的控制算法。这项工作是作为概念验证提出的。
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来源期刊
Arabian Journal for Science and Engineering
Arabian Journal for Science and Engineering MULTIDISCIPLINARY SCIENCES-
CiteScore
5.70
自引率
3.40%
发文量
993
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.
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