基于全控型电力电子器件的强制换流型混合直流断路器
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摘要
基于全控型电力电子器件的强制换流型混合直流断路器,在辅助换流电路分断过程中,缓冲电容放电会影响机械开关分断时间;当主断路器完成分断动作,线路能量仅仅依靠避雷器释放,避雷器投入费用较高,能量释放过程较慢,容易造成器件损坏,并影响避雷器使用寿命。提出一种强制换流型混合直流断路器方案,分析了该断路器工作原理,通过对比仿真验证了该方案的可行性。与传统基于全控型器件的强制换流型混合断路器相比,其在实现电流双向流动的同时全控型器件减半;阻止了缓冲电容放电对机械开关动作时间的影响;引入接地引流二极管,可使线路电流尽快减少到零。
In the hybrid direct current(DC)circuit breaker with forced current commutation based on full-controllable power electronic devices,the snubber capacitor discharge will affect the mechanical switch opening time in the process of auxiliary commutation circuit opening.When the action of the main circuit breaker is finished,the release of line energy just relies on the lightning arrester making the device damage-prone and affecting its useful life.The arrester investment cost is high and the time of energy dissipating is long.A hybrid DC circuit breaker with forced current commutation is proposed,and its operating principle is analyzed.Finally,the feasibility of this scheme is verified by comparing with typical hybrid DC circuit breakers.Compared with the traditional hybrid DC circuit breaker with forced current commutation based on full-controllable power electronic devices,the proposed scheme realizes the current bidirectional flow with only half the full-controllable power electronics devices.It can block the snubber capacitor discharging road without affecting the mechanical switch opening time,and reduce the line current to zero as soon as possible with a grounding diode circuit.
In the hybrid direct current(DC)circuit breaker with forced current commutation based on full-controllable power electronic devices,the snubber capacitor discharge will affect the mechanical switch opening time in the process of auxiliary commutation circuit opening.When the action of the main circuit breaker is finished,the release of line energy just relies on the lightning arrester making the device damage-prone and affecting its useful life.The arrester investment cost is high and the time of energy dissipating is long.A hybrid DC circuit breaker with forced current commutation is proposed,and its operating principle is analyzed.Finally,the feasibility of this scheme is verified by comparing with typical hybrid DC circuit breakers.Compared with the traditional hybrid DC circuit breaker with forced current commutation based on full-controllable power electronic devices,the proposed scheme realizes the current bidirectional flow with only half the full-controllable power electronics devices.It can block the snubber capacitor discharging road without affecting the mechanical switch opening time,and reduce the line current to zero as soon as possible with a grounding diode circuit.
引文
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[16]WU Yifei,RONG Mingzhe,WU Yi,et al.Development of a new topology of DC hybrid circuit breaker[C]//Proceedings of the 2013 IEEE Electric Power Equipment-switching Technology Conference,October 20-23,2013,Matsue,Japan:4p.
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[18]ARMAN H,JURGEN H,BJORN J.Technical assessment of load commutation switch in hybrid HVDC breaker[J].IEEE Trans on Power Electronics,2015,30(10):5393-5400.
[19]OLIVER C,MIKE B,ROGER S,et al.Analysis and simulation of the proactive hybrid circuit breaker[C]//Proceedings of the 2015IEEE Power Electronics and Drive Systems Conference,June 9-12,2015,Sydney,Australia:4-11.
[20]周万迪,魏晓光,高冲,等.基于晶闸管的混合型无弧高压直流断路器[J].中国电机工程学报,2014,34(18):2990-2996.ZHOU Wandi,WEI Xiaoguang,GAO Chong,et al.Thyristor based hybrid arc-less high voltage direct current circuit breaker[J].Proceedings of the CSEE,2014,34(18):2990-2996.
[21]RENE S,THOMAS L.Considerations on energy absorption of HVDC circuit breakers[C]//Proceedings of the 49th International Universities Power Engineering Conference,September 2-5,2014,Romania:6p.
[2]张文亮,汤涌,曾南超.多端高压直流输电技术及应用前景[J].电网技术,2010,34(9):1-6.ZHANG Wenliang,TANG Yong,ZENG Nanchao.Multiterminal HVDC transmission technologies and its application prospects in China[J].Power System Technology,2010,34(9):1-6.
[3]魏晓光,高冲,罗湘,等.柔性直流输电网用新型高压直流断路器设计方案[J].电力系统自动化,2013,37(15):95-102.WEI Xiaoguang,GAO Chong,LUO Xiang,et al.A novel design of high-voltage DC circuit breaker in HVDC flexible transmission grid[J].Automation of Electric Power Systems,2013,37(15):95-102.
[4]CHRISTOPH M,MAURICE K,RIK W D D.Circuit breaker concepts for future high-power DC-applications[C]//Proceedings of the 2005 IEEE Industry Applications Conference,October 2-6,2005,Hong Kong,China:860-866.
[5]RUDRAKSH K,ANSHUMAN S,GEORGIOS D.State of art of power electronics in circuit breaker technology[C]//Proceedings of the 2012IEEE Energy Conversion Congress and Exposition Conference,September 16-20,2012,Raleigh,North Carolina,USA:615-622.
[6]药韬,温家良,李金元,等.基于IGBT串联技术的混合式高压直流断路器方案[J].电网技术,2015,39(9):2484-2489.YAO Tao,WEN Jialiang,LI Jinyuan,et al.A hybrid high voltage DC circuit breaker design plan with series-connected IGBTs[J].Power System Technology,2015,39(9):2484-2489.
[7]江道灼,张弛,郑欢,等.一种限流式混合直流断路器方案[J].电力系统自动化,2014,38(4):65-71.DOI:10.7500/AEPS20130624006.JIANG Daozhuo,ZHANG Chi,ZHENG Huan,et al.A scheme for current-limiting hybrid DC circuit breaker[J].Automation of Electric Power Systems,2014,38(4):65-71.DOI:10.7500/AEPS20130624006.
[8]江壮贤,庄劲武,王晨,等.双向非一致混合型真空直流断路器的分析与设计[J].中国电机工程学报,2013,33(36):142-147.JIANG Zhuangxian,ZHUANG Jinwu,WANG Chen,et al.Analysis and design of a bidirectional non-uniform vacuum DC hybrid circuit breaker[J].Proceedings of the CSEE,2013,33(36):142-147.
[9]ANSHUMAN S,GEORGIOS D D.A survey on hybrid circuitbreaker topologies[J].IEEE Trans on Power Delivery,2015,30(2):627-641.
[10]YEQI W,RAINER M.Future HVDC-grids employing modular multilevel converters and hybrid DC-breakers[C]//Proceedings of the 2013 IEEE Power Electronics and Applications Conference,September 3-5,2013,Lille,France:8p.
[11]吕玮,方太勋,杨浩,等.基于电弧电压的混合型直流断路器[J].电力系统自动化,2015,39(11):83-87.DOI:10.7500/AEPS20140928006.LYU Wei,FANG Taixun,YANG Hao,et al.Hybrid DC breaker based on arc voltage[J].Automation of Electric Power Systems,2015,39(11):83-87.DOI:10.7500/AEPS20140928006.
[12]杜翼,江道灼,郑欢,等.基于电力电子复合开关的限流式混合直流断路器参数设计[J].电力系统自动化,2015,39(11):88-95.DOI:10.7500/AEPS20140112005.DU Yi,JIANG Daozhuo,ZHENG Huan,et al.Parameter designing of the DC hybrid circuit breaker current limiting DC hybrid circuit breaker on combinatorial electronic switch[J].Automation of Electric Power Systems,2015,39(11):88-95.DOI:10.7500/AEPS20140112005.
[13]LUCA N,FABIO B,ALBERTO F,et al.Development and testing of a 10kA hybrid mechanical-static DC circuit breaker[J].IEEE Trans on Applied Superconductivity,21(6),2011:3621-3627.
[14]JACEK Z,TADEUSZ L,JOZEF C,et al.Hybrid arcless lowvoltage AC/DC current limiting interrupting device[J].IEEE Trans on Power Delivery,2000,15(4):1182-1187.
[15]LIU Luhui,ZHUANG Jinwu,WANG Chen,et al.A hybrid DC vacuum circuit breaker for medium voltage:principle and first measurements[J].IEEE Trans on Power Deliver,2014,30(5):1-6.
[16]WU Yifei,RONG Mingzhe,WU Yi,et al.Development of a new topology of DC hybrid circuit breaker[C]//Proceedings of the 2013 IEEE Electric Power Equipment-switching Technology Conference,October 20-23,2013,Matsue,Japan:4p.
[17]MAGNUS C,ANDERS B,JURGEN H,et al.The hybrid HVDC breaker:an innovation breakthrough enabling reliable HVDC grids[R].2012.
[18]ARMAN H,JURGEN H,BJORN J.Technical assessment of load commutation switch in hybrid HVDC breaker[J].IEEE Trans on Power Electronics,2015,30(10):5393-5400.
[19]OLIVER C,MIKE B,ROGER S,et al.Analysis and simulation of the proactive hybrid circuit breaker[C]//Proceedings of the 2015IEEE Power Electronics and Drive Systems Conference,June 9-12,2015,Sydney,Australia:4-11.
[20]周万迪,魏晓光,高冲,等.基于晶闸管的混合型无弧高压直流断路器[J].中国电机工程学报,2014,34(18):2990-2996.ZHOU Wandi,WEI Xiaoguang,GAO Chong,et al.Thyristor based hybrid arc-less high voltage direct current circuit breaker[J].Proceedings of the CSEE,2014,34(18):2990-2996.
[21]RENE S,THOMAS L.Considerations on energy absorption of HVDC circuit breakers[C]//Proceedings of the 49th International Universities Power Engineering Conference,September 2-5,2014,Romania:6p.