Research on Mechanical DC Circuit Breaker Based on Low Voltage Capacitor to Generate Resonant Current

doi:10.16628/j.cnki.2095-8188.2020.09.005

Abstract

Abstract:

This paper analyzed the characteristics of two topologies of resonant type mechanical DC circuit breakers.A new topology structure of DC circuit breaker with lower cost was proposed.The working principle of the new type DC circuit breaker is analyzed,meanwhile the theoretical calculation basis of the main components of the circuit breaker is also proposed.The design correctness of the main component parameters is verified by simulation.With lower cost and simple control structure,the new DC circuit breaker can be widely applied in the medium voltage DC distribution network field,where the equipment cost needs to be controlled strictly.

Key words: mechanical DC circuit breaker, high voltage capacitor, charging capacitor, breaking current, breaking voltage, stray inductance, reclosing

CLC Number:

TM561

HE Qinglian, FAN Caiyun, LIU Kun. Research on Mechanical DC Circuit Breaker Based on Low Voltage Capacitor to Generate Resonant Current[J]. LOW VOLTAGE APPARATUS, 2020, 594(9): 24-29.

Figures/Tables 17

References 8

[1]	张军, 吴金龙, 王先为 , 等. 模块化混合型直流断路器开断能力影响因素分析[J]. 高压电器, 2018,54(12):204-211.
[2]	于海 . 一种强制换流型混合直流断路器方案[J]. 高压电器, 2018,54(4):205-210,215.
[3]	姚为正, 张浩, 吴金龙 , 等. 基于级联全桥型混合直流断路器的直流电网故障恢复策略研究[J]. 高压电器, 2018,54(12):96-103.
[4]	丁璨, 袁召, 何俊佳 . 机械式真空直流断路器反向电流频率的选择方法[J]. 高电压技术, 2020,46(8):2670-2676.
[5]	张梓莹, 梁德世, 蔡淼中 , 等. 机械式高压直流真空断路器换流参数研究[J]. 电工技术学报, 2020,35(12):2554-2561.
[6]	贾国渊 . 机械式高压直流断路器技术综述[J].中国高新科技, 2020(9):53-54.
[7]	韩桂全, 吴军辉, 苏扬. 一种用于中压配网的双向混合式直流断路器及开断方法, 中国, 201710372008.4[P]. 2017-08-18.
[8]	何俊佳 . 直流断路器技术发展综述[J]. 南方电网技术, 2015,9(2):9-12.

组合	C₁充电电压/V	C₁/μF	C₂/μF	第一个半波		杂散电感 /μH
组合	C₁充电电压/V	C₁/μF	C₂/μF	幅值 /kA	半波周期/μs	杂散电感 /μH
1	3 000	500	800	23.5	123	5
2	3 000	500	600	22.1	116	5
3	3 000	400	800	21.9	115	5
4	3 000	350	1 000	21.6	113	5

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