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Technique of breaking current solving of low-voltage molded
case circuit breaker based on multi-step regression |
| ZHAO Zhen,ZHANG Shu-you |
| Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China |
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Abstract In order to get the short-circuit breaking current of MCCB and efficiently, a multi-step regression method that combining statistical methods and simulation techniques was proposed. A minimum breaking unit and its life cycle of circuit breaker were defined，a quasi-linear mapping of breaking current and design variables were built by utilizing the Gaussian kernel function, the initial regression was operated on the design variables by adopting the partial least square (PLS) regression method, and state variables of the life cycle in the minimum breaking unit were calculated with simulation. A quadratic regression model of breaking current based on state variables was built. According to different periods of break, different regression models were utilized to provide the source current for simulation, The results show that the proposed method is effective, overcoming the shortcomings of the digital prototyping which is hard to establish the arc model and those of the physical prototyping which has high cost and long life cycle.
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Published: 11 December 2012
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基于分步回归的低压断路器分断电流求解技术
为快速高效获取低压塑壳断路器(MCCB))短路分断电流,结合统计学方法及仿真分析技术,提出分断电流分步回归求解方法.定义断路器最小分断单元与最小分断单元生命周期,利用高斯核函数构建分断电流与自变量拟线性映射,采用偏最小二乘(PLS)回归方法对最小分断单元设计变量进行初级回归,并结合仿真分析技术,求解最小分断单元生命周期及最小分断单元生命周期内状态变量,构建分断电流关于状态变量二次回归预测模型,针对分断仿真所处不同时期,采用不同电流回归模型提供仿真分析源电流.实例表明,该方法能够有效求解低压塑壳断路器分断电流,克服全数字样机电弧建模困难、全物理样机测试成本高周期长的缺点.
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| ［1］ TREPANIER J Y, ZHANG X D, PELLEGRIN H, et al. Application of computational fluid dynamics tools to circuitbreaker flow analysis［J］. Power Delivery, IEEE Transactions on, 1995, 10(2):817-823．
［2］ YAN J D, FANG M, HALL W. The development of PC based CAD tools for autoexpansion circuit breaker design［J］. Power Delivery, IEEE Transactions on,1999,14(1):176-181．
［3］ 李兴文, 陈德桂.空气开关电弧的磁流体动力学建模及特性仿真［J］.中国电机工程学报,2007,27(21):31-37．
LI Xingwen, CHEN Degui. Magnetohydrodynamics modeling and characteristics simulation of air switching Arc［J］.Proceedings of the Chinese Society for Electrical Engineering, 2007,27(21):31-37．
［4］ WU Y, RONG M Z,YANG F,MURPHY A B. Numerical modeling of arc root transfer during contact opening in a lowvoltage air circuit breaker［J］. IEEE,2008,36（4）:1074-1075．
［5］ SWIERCZYNSKI B, GONZALEA J J, TEULET P. Advance in low voltage circuit breaker modeling［J］. Journal of Physics D: Applied Physics,2004,37(4):595-609.
［6］ LINDMAYER M, MARZAHN E, MUTZKE A. The process of arcsplitting between metal plates in low voltage arc chutes［C］∥Proceedings of the 50th IEEE Holm Conference On Electrical Contacts.Seattle：［s.n.］,2004:28-34．
［7］ 杨茜,荣命哲,吴翊.低压断路器中空气电弧运动的仿真及实验研究［J］.中国电机工程学报,2006,26(15):89-93．
YANG Qian, RONG Mingzhe, WU Yi. Simulation and experimental research on air arc motion in lowvoltage circuit breaker ［J］. Proceedings of the Chinese Society for Electrical Engineering, 2006,26(15):89-93．
［8］ 季良,陈德桂,刘颖异,等.利用电弧动态数学模型的低压断路器开断过程仿真分析［J］.中国电机工程学报.2009,29(21):107-113.
JI Liang, CHEN Degui, LIU Yingyi, et al. Simulation of the interruption process of low voltage circuit breaker using dynamic mathematic arc model［J］. Proceedings of the Chinese Society for Electrical Engineering, 2009,29(21):107-113．
［9］ SCHLITZ L Z, GARIMELLA S V, CHAN S H. Gas dynamics and electromagnetic processes in highcurrent arc plasma［J］. Journal of Applied Physics, 1999,85(5):2847-2555．
［10］ 王惠文.偏最小二乘回归方法及其应用［M］.北京：国防工业出版社,1999∶120-171．
［11］ 陈冰,李山,吴宝海,等.基于尺寸关联和偏最小二乘回归的多工序质量分析与预测［J］.计算机集成制造系统,2009,15(2): 389-398．
CHEN Bing, LI Shan, WU Baohai, et al. Multistage manufacturing quality analysis and forecasting on dimension association and partial least square regression［J］. Computer Integrated Manufacturing Systems, 2009,15(2):389-398．
［12］ 邓乃扬,田英杰. 数据挖掘中的新方法：支持向量机［M］. 北京：科学出版社,2004∶96-123．
［13］ ROSIPAL R. Kernel partial least squares for nonlinear regression and discrimination［J］. Neural Network World,2003,13(3):291-300．
［14］ ROSIPAL R, TREJO L J. Kernel partial least squares regression in reproducing kernel hilbert space ［J］.Journal of Machine Learning Research ,2001,2(6): 97-123．
［15］ 向洪岗,陈德桂.应用有限元方法分析塑壳断路器磁脱扣器的动作特性［J］.西安交通大学学报,2005,39(8):890-894．
XIANG Honggang, CHEN Degui, LI Xingwen. Action characteristics analysis of magnetic release for molded case circuit breaker with 3D finite element method［J］. Journal of XIAN Jiaotong University,2005,39(8):890-894．
［16］ 连理枝.低压断路器的设计与制造［M］.北京：中国电力出版社,2002∶62-65．
［17］ 纽春萍,陈德桂,张敬菽,等.电动斥力作用下低压断路器分断特性的研究［J］.中国电机工程学报,2005,20(7):34-38．
NIU Chunping, CHEN Degui, ZHANG Jingshu, et al. Research on the breaking characteristics of lowvoltage circuit breaker with the effect of electrodynamic repulsion force［J］. Proceedings of the Chinese Society for Electrical Engineering, 2005, 20(7):34-38． |
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