考虑电动斥力的直流牵引供电系统开断特性
齐阳刘禹彤吉星佟俊达周沫高凤喜
Opening and Breaking Characteristics of DC Traction System Based on Electro-dynamic Repulsion Force
QI YangLIU YutongJI XingTONG JundaZHOU MoGAO Fengxi
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作者信息:国网辽宁省电力有限公司经济技术研究院，110015，沈阳
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Affiliation:Economy Technical Research Institute of Liaoning Electric Co.，Ltd.，110015，Shenyang，China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2021.01.016
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中图分类号/CLCN:U231.8； TM561.1
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栏目/Col:研究报告
摘要:
空气直流断路器在城市轨道交通直流牵引供电系 统中起着分断电路的作用。 随着断路器的开断容量的提高， 电动斥力对供电系统开断性能的影响越发明显。 基于麦克斯 韦电磁学理论，分析了电动斥力的产生原理，计算了分断电 流过程触头间的电动斥力。 通过建立动力学仿真模型，分析 了断路器空载和短路开断时的分闸特性，并进行了断路器开 断特性的试验研究。
Abstracts:
The air DC circuit breaker in urban rail transit DC traction power supply system is mainly used for breaking circuit. With the increase of opening and breaking volume，the impact of electro-dynamic repulsion force on the opening and breaking performance of power supply system is growing evident. Based on Maxwell electromagnetism theory，the emergence principle of electro -dynamic repulsion forces is analyzed，and the electro -dynamic repulsion force between contact point during current breaking process is calculated. Through building dynamics simulation model，the separation characteristics demonstrated during breaker empty load and short circuit opening and breaking are analyzed，and opening and breaking characteristics of the breaker are tested and studied.
时评 / Commentary
引文 / Ref:
齐阳，刘禹彤，吉星，等.考虑电动斥力的直流牵引供电系统开断特性[J].城市轨道交通研究，2021，24（1）：74.
QI Yang，LIU Yutong，JI Xing，et al.Opening and Breaking Characteristics of DC Traction System Based on Electro-dynamic Repulsion Force[J].Urban mass transit，2021，24（1）：74.
QI Yang，LIU Yutong，JI Xing，et al.Opening and Breaking Characteristics of DC Traction System Based on Electro-dynamic Repulsion Force[J].Urban mass transit，2021，24（1）：74.
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