一种基于储能系统的混合铁路功率调节器及其控制策略

doi:10.19595/j.cnki.1000-6753.tces.L90037

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摘要为充分利用交直交型电力机车产生的再生制动能量,提高V/v牵引供电系统的电能质量,并提高其经济性,提出一种基于储能系统的混合铁路功率调节器（ESS-HRPC）。储能装置通过双向DC-DC变换器与铁路功率调节器（RPC）的直流侧相连接,以回收利用多余的再生制动能量。一组晶闸管投切电容器（TSC）和一组晶闸管控制电抗器（TCR）用于辅助RPC提供无功功率,以降低负序电流补偿的成本。首先,分析ESS-HRPC的结构组成和工作原理,研究TCR、TSC和RPC的装置容量配置,推导系统电压、电流和功率关系;然后,设计ESS-HRPC各部分的给定参考信号和控制策略;最后,通过三种系统工况仿真验证所提ESS-HRPC及其控制策略的可行性和有效性。

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关键词 ：再生制动能量, 铁路功率调节器, 负序电流补偿, 储能系统, 电气化铁路

Abstract：To fully utilize the regenerative braking energy generated by AC-DC-AC electric locomotives and economically improve the power quality of the V/v traction system, a hybrid railway power conditioner based on energy storage system (ESS-HRPC) is proposed in this paper. The ESS is connected to the DC side of the RPC via a bidirectional DC-DC converter for recycling and utilizing the surplus regenerative braking energy. A set of thyristor-switched capacitors (TSCs) and a set of thyristor-controlled reactors (TCRs) are used to assist the RPC in providing reactive power, so that the cost for the negative sequence current compensation can be reduced. Firstly, the structure and basic principle of the ESS-HRPC are analyzed, the equipment capacity ratio of the TCRs, TSCs and RPC is studied, the capacity of the RPC for reactive power compensation is analyzed, and the relationship of voltage, current and power is derived. Then, the reference signals and control strategy of each component in the ESS-HRPC are designed. Finally, the feasibility and effectiveness of the proposed ESS-HRPC and its control strategy are verified by three system simulations.

Key words： Regenerative braking energy railway power conditioner (RPC) negative sequence current compensation energy storage system electrified railway

收稿日期: 2020-05-27

PACS:

TM922.3

基金资助:神华集团有限责任公司科技创新资助项目（CSIE16024877）

通讯作者: 通信作者何棒棒男,1994年生,博士研究生,研究方向为交直流配电系统稳定性评估与提升、牵引供电系统再生制动能量利用及电能质量改善。E-mail: he_bangbang@163.com

作者简介: 高志宣男,1991年生,博士,研究方向为电气化铁路节能、电能路由器。E-mail: gaozhixuan8577@163.com

引用本文:

何棒棒, 高志宣, 马超. 一种基于储能系统的混合铁路功率调节器及其控制策略[J]. 电工技术学报, 2021, 36(23): 4905-4915. He Bangbang, Gao Zhixuan, Ma Chao. A Hybrid Railway Power Conditioner Based on Energy Storage System and Its Control Strategy. Transactions of China Electrotechnical Society, 2021, 36(23): 4905-4915.

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