| 引用本文: | 崔贵平,罗隆福,李勇,刘裕兴,王涛.基于新型YNvd平衡变压器的电气化铁道同相供电系统[J].电力自动化设备,2019,39(2): |
| CUI Guiping,LUO Longfu,LI Yong,LIU Yuxing,WANG Tao.Co-phase power supply system based on novel YNvd balanced transformer for electrified railway[J].Electric Power Automation Equipment,2019,39(2): |
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| 摘要: |
| 针对电气化铁路牵引供电系统中存在的无功、负序、谐波及过分相问题，提出了一种由新型YNvd平衡变压器、综合潮流控制器(IPFC)组成的同相供电系统。与采用传统的YNvd平衡变压器进行同相供电的装置相比，其通过合理配置新型YNvd平衡变压器绕组的电压等级，节省了1台单相耦合降压变压器，从而降低了整套装置的成本和占地空间。对新型YNvd同相牵引供电系统的补偿原理进行了详细的分析，为实现补偿电流的无偏差跟踪，提出了一种基于广义积分迭代控制算法的电流控制器设计方法。仿真结果证明了所提方法和控制策略的可行性和有效性。 |
| 关键词: 电气化铁路 YNvd平衡变压器 同相供电 综合潮流控制器 广义积分 电分相 |
| DOI：10.16081/j.issn.1006-6047.2019.02.024 |
| 分类号:U223.5 |
| 基金项目:国家自然科学基金资助项目(51477046)；湖南省重大科技专项(2015GK1027,2017GK2241) |
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| Co-phase power supply system based on novel YNvd balanced transformer for electrified railway |
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CUI Guiping, LUO Longfu, LI Yong, LIU Yuxing, WANG Tao
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National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Changsha 410082, China
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| Abstract: |
| 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. |
| Key words: electric railways YNvd balanced transformer co-phase power supply integrated power flow controller generalized integral neutral section |
