用于城轨直流牵引系统的混合型MMC全桥子模块比例设计方法

doi:10.11930/j.issn.1004-9649.202011100

中国电力 ›› 2022, Vol. 55 ›› Issue (4): 54-62.DOI: 10.11930/j.issn.1004-9649.202011100

• 基于电力电子装备的配电网运行控制与形态演变 • 上一篇下一篇

用于城轨直流牵引系统的混合型MMC全桥子模块比例设计方法

席嫣娜^1,3, 李笑彤^1,3, 李子明², 魏应冬², 李笑倩², 王方敏^1,3, 李伟^1,3, 李伟瑞²

1. 国网北京市电力公司，北京 100031;
2. 电力系统及发电设备控制和仿真国家重点实验室（清华大学电机系），北京 100084;
3. 北京电力经济技术研究院有限公司，北京市 100055

收稿日期:2021-02-23 修回日期:2022-03-02 出版日期:2022-04-28 发布日期:2022-04-24
作者简介:席嫣娜（1992—），女，博士，从事轨道交通柔性供电技术、多元化负荷特性分析与接入系统研究，E-mail：xiyanna@163.com;李笑倩（1987—），女，通信作者，助理研究员，博士，从事大功率电力电子变流器、轨道交通柔性供电技术研究，E-mail：lixq-dee@tsinghua.edu.cn
基金资助:
国网北京市电力公司科技项目（520234190003）; 国家自然科学基金资助项目（51807105）; 国家自然科学基金国际（地区）合作与交流资助项目（52011530129）。

A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit

XI Yanna^1,3, LI Xiaotong^1,3, LI Ziming², WEI Yingdong², LI Xiaoqian², WANG Fangmin^1,3, LI Wei^1,3, LI Weirui²

1. State Grid Beijing Electric Power Company, Beijing 100031, China;
2. State Key Laboratory of Control and Simulation of Power System and Generation Equipment (Department of Electrical Engineering, Tsinghua University), Beijing 100084, China;
3. Beijing Electric Power Economic Research Institute Co., Ltd., Beijing 100055, China

Received:2021-02-23 Revised:2022-03-02 Online:2022-04-28 Published:2022-04-24
Supported by:
This work is supported by the Science and Technology Project of State Grid Beijing Electric Power Company (No.520234190003), National Natural Science Foundation of China (No.51807105), National Natural Science Foundation of China, International (Regional) Cooperation and Exchange Programs (No.52011530129).

摘要/Abstract

摘要： 城市轨道交通直流牵引供电系统是一个低电压大电流系统，受制于开关器件的通流能力，两电平变流器的单台容量难以满足需求。由全桥子模块和半桥子模块组成的混合型模块化多电平换流器（modular multilevel converter, MMC）可用于调制比大于1的系统中，利用全桥子模块的负电平输出能力，可以提高交流电压或降低直流电压。针对可用于城市轨道交通直流牵引供电系统的混合型MMC，提出一种全桥子模块比例的设计方法，满足高调制比稳态运行的需求和直流故障清除能力的需求，选取了常见的1 500 V地铁系统作为算例，选取3组参数，在PSCAD软件中搭建仿真模型，验证了设计方法的正确性。

关键词: 模块化多电平换流器, 混合型MMC, 全桥子模块比例, 直流牵引供电

Abstract: The characteristic of urban rail DC traction power supply system is low voltage and large current. The capacity of a converter fails to meet the demand, limited by the current capacity of the switching device. Hybrid modular multilevel converter (MMC) is composed of full-bridge submodule and half-bridge submodule. It can be used in systems with modulation ratio greater than one. Utilizing the negative level output capability of the full-bridge submodule, the increase of the AC voltage or the reduction of the DC voltage can be achieved. This article is aimed at the hybrid MMC that can be applied in the DC traction power supply system and proposes a design method for the proportion of full-bridge submodule. This method meets the needs of high modulation ratio steady state operation and DC fault clearing capability. A 1 500 V subway system is selected as an example and three sets of parameters are also selected. The simulation model was built in PSCAD software to verify the correctness of the design method.

Key words: modular multilevel converter, hybrid MMC, proportion of full-bridge submodule, DC traction power supply

席嫣娜, 李笑彤, 李子明, 魏应冬, 李笑倩, 王方敏, 李伟, 李伟瑞. 用于城轨直流牵引系统的混合型MMC全桥子模块比例设计方法[J]. 中国电力, 2022, 55(4): 54-62.

XI Yanna, LI Xiaotong, LI Ziming, WEI Yingdong, LI Xiaoqian, WANG Fangmin, LI Wei, LI Weirui. A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit[J]. Electric Power, 2022, 55(4): 54-62.

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用于城轨直流牵引系统的混合型MMC全桥子模块比例设计方法

A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit

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用于城轨直流牵引系统的混合型MMC全桥子模块比例设计方法

A Design Method of Hybrid MMC Full-bridge Submodule Proportion Applied to DC Traction Power Supply System for Urban Rail Transit

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