Co-phase power supply system based on novel YNvd balanced transformer for electrified railway

被引：0
|
作者：
Cui G. [1 ]
Luo L. [1 ]
Li Y. [1 ]
Liu Y. [1 ]
Wang T. [1 ]
机构：
[1] National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2019年 / 39卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Co-phase power supply; Electric railways; Generalized integral; Integrated power flow controller; Neutral section; YNvd balanced transformer;
D O I：
10.16081/j.issn.1006-6047.2019.02.024
中图分类号：
学科分类号：
摘要：
To address the problems of reactive power, negative sequence, harmonic and passing over of neutral section in electrified railway traction power supply system, a co-phase traction power supply system that consists of novel YNvd balanced transformer and IPFC(Integrated Power Flow Controller) is proposed. Compared with the co-phase power supply system with traditional YNvd balanced transformers, the proposed approach saves a single-phase coupled step-down transformer by reasonably configuring the voltage level of the winding of the novel YNvd balanced transformer, which results in reduced investment cost and space of the entire equipment. Detailed compensation principle of the co-phase traction power supply system based on novel YNvd balanced transformer is analyzed. A current controller design method based on generalized integral iterative control algorithm is proposed to enable the error free tracking of the compensation current. Simulative results verify the feasibility and effectiveness of the proposed method and control strategy. © 2019, Electric Power Automation Equipment Press. All right reserved.
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页码：158 / 163and180
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