状态变量方程辨识Cauer热模型参数的方法
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摘要
绝缘栅双极性晶体管IGBT模块热网络与可靠性密切相关。Cauer模型简单直观,为了得到模型中各元件的参数,提出一种基于现代控制理论中任意系统转换为能观标准型的一般方法,将模型的一般的状态空间表达式通过矩阵变换的方法转换为特殊的能观标准型。通过实验或仿真得到系统的传递函数,将传递函数与能观标准型进行比较,可以得到若干个方程组并求解得到所需的元件参数。通过仿真验证了该方法的可行性。
The thermal network of insulated gate bipolar transistor(IGBT) module is closely related to the reliability. Cauer model is simple and intuitive. In order to obtain the parameters of each element in the model, a general method based on the conversion of any system into the observable standard type in modern control theory is proposed, which transforms general state space expression of the model into a special observable standard form by means of matrix transformation. The transfer function of the system is obtained by experiment or simulation and several equations can be obtained, and the required element parameters can be solved by comparing the transfer function with the observable standard type. Simulation verifies the feasibility of the method.
The thermal network of insulated gate bipolar transistor(IGBT) module is closely related to the reliability. Cauer model is simple and intuitive. In order to obtain the parameters of each element in the model, a general method based on the conversion of any system into the observable standard type in modern control theory is proposed, which transforms general state space expression of the model into a special observable standard form by means of matrix transformation. The transfer function of the system is obtained by experiment or simulation and several equations can be obtained, and the required element parameters can be solved by comparing the transfer function with the observable standard type. Simulation verifies the feasibility of the method.
引文
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[2]张树冰,刘雪婷.功率模块IGBT失效机理与寿命预测研究综述[J].电气开关,2017,55(5):19-21.
[3]汪波,罗毅飞,张烁,等.IGBT极限功耗与热失效机理分析[J].电工技术学报,2016,31(12):135-141.
[4]薛鹏.高压IGBT的失效机理分析[D].成都:电子科技大学,2016.
[5]姚芳,王少杰,李志刚.IGBT结温获取方法及其讨论[J].电测与仪表,2017,54(12):42-48.
[6]杨洪波,王征宇,黄宜山.IGBT损耗和结温计算研究[J].大功率变流技术,2016(1):30-33.
[7]李玲玲,许亚惠,李志刚.基于电-热耦合模型的IGBT模块结温计算方法[J].电源学报,2016,14(6).
[8]吴岩松,罗皓泽,李武华,等.用于IGBT模块结温预测的热-电耦合模型研究[J].电工电能新技术,2014,33(3):13-17.
[9]唐云宇,林燎源,马皓.一种改进的并联IGBT模块瞬态电热模型[J].电工技术学报,2017,32(12):88-96.
[10] Bhawal C, Pal D, Kumar S, et al. New results and techniques for computation of stored energy in lossless/all-pass systems[J]. IEEE Transactions on Circuits&Systems I:Regular Papers,2017,64(1):72-85.
[11]王存乐,李志刚,李雄,等.功率IGBT模块热网络参数提取研究综述[J].电工电气,2017(10):1-6.
[12] Negrea C,Svasta P,Rangu M. Electro-thermal modeling of power LED using SPICE circuit solver[C]//2012 35th International Spring Seminar on Electronics Technology. 2012.
[13] Kuhn E,Forgez C,Lagonotte P,et al. Modelling Ni-mH battery using Cauer and Foster structures[J]. Journal of Power Sources,2006,158(2):1490-1497.
[14] Murthy K V V,Bedford R E. Transformation between Foster and Cauer equivalent networks[J]. IEEE Transactions on Circuits&Systems, 1978,25(4):238-239.
[15]邱关源.电路[M].5版.北京:高等教育出版社,2006.
[16]刘豹,唐万生.现代控制理论[M]. 3版.北京:机械工业出版社,2006.