Research and Application of Rapid Mechanical Switch of Hybrid DC Circuit Breaker

doi:10.12204/j.issn.1000-7229.2022.08.012

Abstract

Abstract:

The grid-connected consumption of "green and low-carbon" new energy such as large-scale wind power and new photovoltaic power urgently needs the development and research on new flexible DC transmission technology and equipment. On the basis of the test and demonstration project of Zhangbei DC power transmission, this paper systematically studies the core equipment of hybrid DC circuit breaker. According to the working principle of hybrid DC circuit breaker and the performance requirements of fast mechanical switch, the high-voltage fast mechanical switch is proposed. Through the finite element simulation of the dynamic characteristics of fast mechanical switch, it shows that the fast mechanical switch can move to the transient voltage insulation distance within 2 ms, and the simulation results are verified by electrical performance test. The successfully developed high-voltage and high-current fast mechanical switch has been put into practice in Zhangbei HVDC transmission test and demonstration project.

Key words: hybrid HVDC circuit breaker, fast mechanical switch, electromagnetic repulsion mechanism, vacuum interrupter

CLC Number:

TM521

LIU Yaping, CHEN Junping, FANG Chun’en, LIU Mengqi. Research and Application of Rapid Mechanical Switch of Hybrid DC Circuit Breaker[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(8): 120-127.

Figures/Tables 13

Fig.1 Breaking principle of hybrid HVDC circuit breaker

Fig.2 Fast mechanical switch with multiple breaks

Fig.3 Design scheme of fast mechanical switch module

Fig.4 Electromagnetic repulsion actuator

Fig.5 Bi-stable spring hold mechanism

Fig.6 FEM model of the electromagnetic repulsive mechanism

Table 1 Parameters of electromagnetic repulsion mechanismmm

Fig.7 Opening waveforms of the fast mechanical switch

Fig.8 Epoxy resin sealed pole

Table 2 Parameters of fast mechanical switch module

Fig.9 Testing waves of fast mechanical switch’s opening

Fig.10 Dynamic switching voltage

Fig.11 Dynamic insulation test waveforms of fast mechanical switch module

References 19

[1]	刘晨阳, 王青龙, 柴卫强, 等. 应用于张北四端柔直工程±535 kV混合式直流断路器样机研制及试验研究[J]. 高电压技术, 2020, 46(10): 3638-3646.
	LIU Chenyang, WANG Qinglong, CHAI Weiqiang, et al. Development and experimental research of ±535 kV hybrid DC circuit breaker prototype applied in Zhangbei four-terminal VSC-HVDC project[J]. High Voltage Engineering, 2020, 46(10): 3638-3646.
[2]	郭贤珊, 周杨, 梅念, 等. 张北柔直电网的构建与特性分析[J]. 电网技术, 2018, 42(11): 3698-3707.
	GUO Xianshan, ZHOU Yang, MEI Nian, et al. Construction and characteristic analysis of Zhangbei flexible DC grid[J]. Power System Technology, 2018, 42(11): 3698-3707.
[3]	汤广福, 王高勇, 贺之渊, 等. 张北500 kV直流电网关键技术与设备研究[J]. 高电压技术, 2018, 44(7): 2097-2106.
	TANG Guangfu, WANG Gaoyong, HE Zhiyuan, et al. Research on key technology and equipment for Zhangbei 500 kV DC grid[J]. High Voltage Engineering, 2018, 44(7): 2097-2106.
[4]	杜晓磊, 郭庆雷, 吴延坤, 等. 张北柔性直流电网示范工程控制系统架构及协调控制策略研究[J]. 电力系统保护与控制, 2020, 48(9):164-173.
	DU Xiaolei, GUO Qinglei, WU Yankun, et al. Research on control system structure and coordination control strategy for Zhangbei demonstration project of MMC-HVDC grid[J]. Power System Protection and Control, 2020, 48(9):164-173.
[5]	韩乃峥, 贾秀芳, 赵西贝, 等. 一种新型混合式直流故障限流器拓扑[J]. 中国电机工程学报, 2019, 39(6): 1647-1658.
	HAN Naizheng, JIA Xiufang, ZHAO Xibei, et al. A novel hybrid DC fault current limiter topology[J]. Proceedings of the CSEE, 2019, 39(6): 1647-1658.
[6]	王渝红, 王媛, 曾琦, 等. 阻容式直流断路器及其在柔直系统中的应用[J]. 高电压技术, 2019, 45(1): 1-11.
	WANG Yuhong, WANG Yuan, ZENG Qi, et al. Resistor and capacitor based DC circuit breaker and its application in flexible DC system[J]. High Voltage Engineering, 2019, 45(1): 1-11.
[7]	魏晓光, 周万迪, 张升, 等. 模块化混合式高压直流断路器研究与应用[J]. 中国电机工程学报, 2020, 40(6): 2038-2047.
	WEI Xiaoguang, ZHOU Wandi, ZHANG Sheng, et al. Research and application of modular hybrid high voltage DC circuit breaker[J]. Proceedings of the CSEE, 2020, 40(6): 2038-2047.
[8]	潘垣, 袁召, 陈立学, 等. 耦合型机械式高压直流断路器研究[J]. 中国电机工程学报, 2018, 38(24): 7113-7120.
	PAN Yuan, YUAN Zhao, CHEN Lixue, et al. Research on the coupling mechanical high voltage DC circuit breaker[J]. Proceedings of the CSEE, 2018, 38(24): 7113-7120.
[9]	石巍, 曹冬明, 杨兵, 等. 500kV 整流型混合式直流断路器[J]. 电力系统自动化, 2018, 42(7):102-107.
	SHI Wei, CAO Dongming, YANG Bing, et al. 500 kV commutation-based hybrid HVDC circuit breaker[J]. Automation of Electric Power Systems, 2018, 42(7): 102-107.
[10]	张翔宇, 余占清, 黄瑜珑, 等. 500kV耦合负压换流型混合式直流断路器原理与研制[J]. 全球能源互联网, 2018, 1(4): 413-422.
	ZHANG Xiangyu, YU Zhanqing, HUANG Yulong, et al. Principle and development of 500 kV hybrid DC circuit breaker based on coupled negative voltage commutation[J]. Journal of Global Energy Interconnection, 2018, 1(4): 413-422.
[11]	张怿宁, 罗易萍, 洪妍妍. 基于多端口混合直流断路器的LCC-VSC混合多端直流输电系统故障清除方案[J]. 电力系统保护与控制, 2021, 49(4):146-153.
	ZHANG Yining, LUO Yiping, HONG Yanyan. Multi-port DC circuit breaker-based fault clearing scheme for LCC-VSC hybrid multi-terminal HVDC systems[J]. Power System Protection and Control, 2021, 49(4):146-153.
[12]	郭兴宇, 梁德世, 黄智慧, 等. 基于多场耦合的电磁斥力机构运动参数研究[J]. 高电压技术, 2022, 48(2): 626-635.
	GUO Xingyu, LIANG Deshi, HUANG Zhihui, et al. Research on motion parameters of electromagnetic repulsion mechanism based on multi-field coupling[J]. High Voltage Engineering, 2022, 48(2): 626-635.
[13]	张宁, 陈龙龙, 丁骁, 等. 基于涡流感应原理的快速机械开关电磁缓冲影响因素研究[J]. 高压电器, 2021, 57(11): 66-75.
	ZHANG Ning, CHEN Longlong, DING Xiao, et al. Research on electromagnetic buffering influence factor of fast mechanical switch based on eddy current induction principle[J]. High Voltage Apparatus, 2021, 57(11): 66-75.
[14]	刘彬, 于海波, 许元震, 等. 面向工程应用的高效率电磁斥力机构设计及试验[J]. 高电压技术, 2020, 46(12):4283-4290.
	LIU Bin, YU Haibo, XU Yuanzhen, et al. Design and experiment of high efficiency electromagnetic repulsion mechanism for engineering application[J]. High Voltage Engineering, 2020, 46(12): 4283-4290.
[15]	刘亚萍, 杨勇, 魏争, 等. 柔性直流输电工程高压直流断路器耗能支路MOV可靠性提升管控[J]. 设备监理, 2021(11): 21-26.
	LIU Yaping, YANG Yong, WEI Zheng, et al. High voltage DC circuit breaker energy consumption branch MOV reliability improvement control of flexible DC transmission project[J]. Plant Engineering Consultants, 2021(11): 21-26.
[16]	章宝歌, 孙瑞. 新型具有限流功能多端口高压直流断路器拓扑[J]. 电力建设, 2021, 42(11): 13-22.
	ZHANG Baoge, SUN Rui. New topology of multi-port high-voltage DC circuit breaker with current-limiting function[J]. Electric Power Construction, 2021, 42(11): 13-22.
[17]	彭昊, 夏向阳, 杨银, 等. 基于耦合负压电路的混合式直流断路器拓扑研究[J]. 电气工程学报, 2019, 14(4):46-50.
	PENG Hao, XIA Xiangyang, YANG Yin, et al. Topology of hybrid DC circuit breaker based on coupled negative pressure circuit[J]. Journal of Electrical Engineering, 2019, 14(4):46-50.
[18]	何俊佳. 高压直流断路器关键技术研究[J]. 高电压技术, 2019, 45(8):2353-2361.
	HE Junjia. Research on the key technology of HVDC circuit breaker[J]. High Voltage Engineering, 2019, 45(8):2353-2361.
[19]	温伟杰, 黄瑜珑, 陈政宇, 等. 一种基于换流驱动电路的混合式高压直流断路器[C]// 中国电机工程学会高电压专业委员会.中国电机工程学会高电压专业委员会2015年学术年会论文集. 2015:1-7.
	[ 20 董溪坤, 王维庆, 张新燕, 等. 新型高压直流断路器开断能力的研究[J]. 电力学报, 2013, 28(3):191-195.
	DONG Xikun, WANG Weiqing, ZHANG Xinyan, et al. Study on the breaking capacity of the new HVDC circuit breaker[J]. Journal of Electric Power, 2013, 28(3):191-195.