Hybrid current regulation of photovoltaic power integrated in railway traction power supply system

ZHANG Weiqiu; CHENG Peng; ZHANG Jingyan; HOU Dazhi; SUN Shijie; MA Jing

doi:10.13890/j.issn.1000-128X.2022.03.006

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Hybrid current regulation of photovoltaic power integrated in railway traction power supply system

Low Carbon Rail Transport | 更新时间：2024-08-02

- Hybrid current regulation of photovoltaic power integrated in railway traction power supply system
- Electric drive for locomotives Issue 3, Pages: 45-52(2022)
- 作者机构：
  
  1.华北电力大学能源电力创新研究院，北京　　102206
  2.中车长春轨道客车股份有限公司工程研究中心，吉林长春　　130062
  3.华北电力大学电气与电子工程学院，北京;102206
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.03.006
  CLC： TM615;U223
- Published：10 May 2022，
  
  Received：28 April 2022，
- 稿件说明：
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ZHANG Weiqiu, CHENG Peng, ZHANG Jingyan, et al. Hybrid current regulation of photovoltaic power integrated in railway traction power supply system. [J]. Electric drive for locomotives (3):45-52(2022)
DOI：

ZHANG Weiqiu, CHENG Peng, ZHANG Jingyan, et al. Hybrid current regulation of photovoltaic power integrated in railway traction power supply system. [J]. Electric drive for locomotives (3):45-52(2022) DOI： 10.13890/j.issn.1000-128X.2022.03.006.

摘要

随着低碳化交通的持续发展，铁路交通沿线所蕴含的太阳能资源禀赋开发利用势在必行。利用铁路沿线空间资源实施光伏发电，不仅可为铁路牵引系统提供清洁电力，也可拓展新能源发电消纳空间。因此，文章提出面向铁路牵引供电网的光伏发电混合电流控制策略。该控制实施于三相静止坐标系，构造由传输光伏功率所需的正序电流分量与补偿牵引负荷所需的负序电流分量的混合电流受控目标，实现光伏逆变器的并网发电与负序补偿的统一控制。同时，该控制策略可在无需相序分离与提取的条件下，完成对单相牵引负荷负序电流的补偿，增强高压侧电网电能质量。最后，在RTLAB硬件在环试验平台验证了文章所提控制策略的有效性。

Abstract

With the sustainable development of low-carbon transportation

it is imperative to develop and utilize the solar energy resources along the railway. Using the space resources along the railway to implement photovoltaic power generation can not only provide clean electricity for railway traction system

but also expand the consumption space of new energy power generation. Therefore

a hybrid current control strategy of photovoltaic power generation for railway traction power supply network was proposed. The control was implemented in the three-phase static coordinate system

and the mixed current was controlled by the positive sequence current component required by photovoltaic power transmission and the negative sequence current component required by traction load compensation

so as to realize the unified control of grid-connected power generation and negative sequence compensation of photovoltaic inverters. At the same time

the control strategy can complete the negative sequence current compensation of single-phase traction load without phase sequence separation and extraction

and enhance the power quality of high-voltage side grid. Finally

the effectiveness of the proposed control strategy was verified on the RT-LAB hardware-in-the-loop experimental platform.

关键词

电气化铁路牵引供电光伏发电混合电流负序补偿仿真

Keywords

electrified railwaytraction power supplyphotovoltaic powerhybrid currentnegative-sequence current compensationsimulation

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