基于IGBT混联闭环控制策略的无弧智能直流接触器
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摘要
针对机械开关分断电弧造成的触头烧损问题,提出一种基于IGBT混联闭环控制策略的无弧智能直流接触器。以单管IGBT混联的方式,实现直流接触器无弧分断,同时规避了采用IGBT模块体积大、成本高的缺陷。在相应的缓冲电路基础上,辅以静态均流闭环控制策略,解决了IGBT混联造成的串联不均压和并联不均流问题,实现了IGBT的高效利用,保证触头可靠无弧分断和系统的安全稳定性。在此基础上,通过理论分析得到了缓冲电路参数的相关约束方程,为电路优化提供理论依据,进一步减小了控制模块的成本和体积。实验结果证明所提控制方案简单有效,并具备良好的通用性。
Arcless intelligent DC contactor based on IGBT hybrid connection closed-loop control strategy is proposed to solve the problem of contact burning loss caused by breaking arc of mechanical switches. The arcless breaking of DC contactor is realized in the way of single tube IGBT hybrid connection,which avoids the defects of large volume and high cost of IGBT modules. Based on the corresponding buffer circuit,the static current balance closed-loop control strategy is adopted to solve the problem of voltage imbalance and current imbalance caused by IGBT hybrid connection,which realizes the high utilization rate of IGBT and guarantees the reliable arcless breaking and stability of system. On this basis,the relevant constraint equations of the buffer circuit parameters are obtained by theoretical analysis,which provides the theoretical basis for the circuit optimization and further reduces the cost and volume of the control module. Experimental results show that the proposed control scheme is simple and effective,and has good versatility.
Arcless intelligent DC contactor based on IGBT hybrid connection closed-loop control strategy is proposed to solve the problem of contact burning loss caused by breaking arc of mechanical switches. The arcless breaking of DC contactor is realized in the way of single tube IGBT hybrid connection,which avoids the defects of large volume and high cost of IGBT modules. Based on the corresponding buffer circuit,the static current balance closed-loop control strategy is adopted to solve the problem of voltage imbalance and current imbalance caused by IGBT hybrid connection,which realizes the high utilization rate of IGBT and guarantees the reliable arcless breaking and stability of system. On this basis,the relevant constraint equations of the buffer circuit parameters are obtained by theoretical analysis,which provides the theoretical basis for the circuit optimization and further reduces the cost and volume of the control module. Experimental results show that the proposed control scheme is simple and effective,and has good versatility.
引文
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[10]SASAKI M,NISHIO H,NG W T.Dynamic gate resistance control for current balancing in parallel connected IGBTs[C]∥IEEEApplied Power Electronics Conference and Exposition.Long Beach,CA,USA:IEEE,2013:244-249.
[11]张成,孙驰,马伟明,等.基于电路拓扑的IGBT并联均流方法[J].高电压技术,2013,39(2):505-512.ZHANG Cheng,SUN Chi,MA Weiming,et al.Paralleling current sharing method of parallel IGBTs based on circuit topology[J].High Voltage Engineering,2013,39(2):505-512.
[12]ALVAREZ R,BERNET S.Sinusoidal current operation of delaytime compensation for parallel-connected IGBTs[J].IEEE Transactions on Industry Applications,2012,50(5):3485-3493.
[13]王雪松,赵争鸣,袁立强,等.应用于大容量变换器的IGBT并联技术[J].电工技术学报,2012,27(10):155-162.WANG Xuesong,ZHAO Zhengming,YUAN Liqiang,et al.Parallel technique for IGBT modules applied in high-power converter[J].Transactions of China Electrotechnical Society,2012,27(10):155-162.
[14]LIZAMA I,ALVAREZ R,BERNET S,et al.Static balancing of the collector current of IGBTs connected in parallel[C]∥IECON 2014.Dallas,TX,USA:IEEE,2014:1827-1833.
[15]CHEN N,CHIMENTO F,NAWAZ M,et al.Dynamic characterization of parallel-connected high-power IGBT modules[C]∥Energy Conversion Congress and Exposition.Denver,Colorado,USA:IEEE,2013:4263-4269.
[2]林莘,李鑫涛,王飞鸣,等.触头烧损对SF6断路器介质恢复特性的影响[J].高电压技术,2014,40(10):3125-3134.LIN Xin,LI Xintao,WANG Feiming,et al.Dielectric recovery characteristics of SF6circuit breaker considering contact burning loss[J].High Voltage Engineering,2014,40(10):3125-3134.
[3]蓝磊,陈功,文习山,等.基于动态电阻测量的SF_6断路器触头烧蚀特性[J].高电压技术,2016,42(6):1731-1738.LAN Lei,CHEN Gong,WEN Xishan,et al.Erosion characteristics of SF6circuit breaker contacts based on dynamic contact resistance measurement[J].High Voltage Engineering,2016,42(6):1731-1738.
[4]JI S,LU T,ZHAO Z,et al.Series-connected HV-IGBTs using active voltage balancing control with status feedback circuit[J].IEEETransactions on Power Electronics,2015,30(8):4165-4174.
[5]侯凯,李伟邦,范镇淇,等.基于有源电压控制法和无源缓冲法的IGBT串联均压技术[J].电力系统自动化,2013,37(19):116-121.HOU Kai,LI Weibang,FAN Zhenqi,et al.Voltage-sharing of series connected IGBTs based on active voltage control and passive RCDtechnique[J].Automation of Electric Power Systems,2013,37(19):116-121.
[6]CLAUS D,SCHONDORF R.IGBT series connection under active voltage control with temporary clamp[C]∥European Conference on Power Electronics and Applications.Birmingham,UK:IEEE,2011:465-470.
[7]NING D,TONG X,MING S,et al.The experiments of voltage balancing methods in IGBTs series connection[C]∥Asia-Pacific Power and Energy Engineering Conference.Chengdu,China:IEEE,2010:1-4.
[8]MARIN A,POPESCU M O.Analysis of switching in an AC hybrid contactor[C]∥8th International Symposium on Advanced Topics in Electrical Engineering.Bucharest,Romania:IEEE,2013:1-4.
[8]BARAIA I,BARRENA J A,ABAD G,et al.An experimentally verified active gate control method for the series connection of IGBT/diodes[J].IEEE Transactions on Power Electronics,2012,27(2):1025-1038.
[9]张帆,杨旭,任宇,等.一种适用于固态直流断路器的IGBT串联均压电路[J].中国电机工程学报,2016,36(3):656-663.ZHANG Fang,YANG Xu,REN Yu,et al.Voltage balancing circuit for series-connected IGBTs in solid-state breaker[J].Proceedings of the CSEE,2016,36(3):656-663.
[10]SASAKI M,NISHIO H,NG W T.Dynamic gate resistance control for current balancing in parallel connected IGBTs[C]∥IEEEApplied Power Electronics Conference and Exposition.Long Beach,CA,USA:IEEE,2013:244-249.
[11]张成,孙驰,马伟明,等.基于电路拓扑的IGBT并联均流方法[J].高电压技术,2013,39(2):505-512.ZHANG Cheng,SUN Chi,MA Weiming,et al.Paralleling current sharing method of parallel IGBTs based on circuit topology[J].High Voltage Engineering,2013,39(2):505-512.
[12]ALVAREZ R,BERNET S.Sinusoidal current operation of delaytime compensation for parallel-connected IGBTs[J].IEEE Transactions on Industry Applications,2012,50(5):3485-3493.
[13]王雪松,赵争鸣,袁立强,等.应用于大容量变换器的IGBT并联技术[J].电工技术学报,2012,27(10):155-162.WANG Xuesong,ZHAO Zhengming,YUAN Liqiang,et al.Parallel technique for IGBT modules applied in high-power converter[J].Transactions of China Electrotechnical Society,2012,27(10):155-162.
[14]LIZAMA I,ALVAREZ R,BERNET S,et al.Static balancing of the collector current of IGBTs connected in parallel[C]∥IECON 2014.Dallas,TX,USA:IEEE,2014:1827-1833.
[15]CHEN N,CHIMENTO F,NAWAZ M,et al.Dynamic characterization of parallel-connected high-power IGBT modules[C]∥Energy Conversion Congress and Exposition.Denver,Colorado,USA:IEEE,2013:4263-4269.