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一种IGBT散热器动态响应性能优化数值算法 被引量:10
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作者 张晏铭 周雒维 +2 位作者 刘洪纪 龚灿 杜雄 《中国电机工程学报》 EI CSCD 北大核心 2016年第11期3017-3026,共10页
以绝缘栅双极型晶体管(insulated gate bipolar transistor,IGBT)可靠性寿命预测研究为背景,该文针对IGBT模块的功率循环提出了一种考虑实时结温反馈的散热器优化设计的数值算法。通过建立功率循环综合热网络模型,将每个功率循环周期等... 以绝缘栅双极型晶体管(insulated gate bipolar transistor,IGBT)可靠性寿命预测研究为背景,该文针对IGBT模块的功率循环提出了一种考虑实时结温反馈的散热器优化设计的数值算法。通过建立功率循环综合热网络模型,将每个功率循环周期等效为全响应和零输入响应,分析结温与热网络参数的数值计算关系,建立实时结温反馈数值算法得到功率循环曲线,从而寻找到功率循环与散热器动态热响应特性的关系,并提出优化方法。最后,以功率循环老化系统的设计为例,优化了老化系统所用散热器,通过实验测试对文中提出的数值仿真模型的有效性和精度进行了验证。 展开更多
关键词 功率循环 综合热网络 动态响应 数值算法 IGBT
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Combined mass and heat exchange network synthesis based on stage-wise superstructure model 被引量:2
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作者 刘琳琳 都健 杨凤林 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2015年第9期1502-1508,共7页
Integrating multiple systems into one has become an important trend in Process Systems Engineering research field since there is strong demand from the modern industries. In this study, a stage-wise superstructurebase... Integrating multiple systems into one has become an important trend in Process Systems Engineering research field since there is strong demand from the modern industries. In this study, a stage-wise superstructurebased method is proposed to synthesize a combined mass and heat exchange network(CM&HEN) which has two parts as the mass exchange network(MEN) and heat exchange network(HEN) involved. To express the possible heat exchange requirements resulted from mass exchange operations, a so called "indistinct HEN superstructure(IHS)", which can contain the all potential matches between streams, is constructed at first. Then, a non-linear programming(NLP) mathematical model is established for the simultaneous synthesis and optimization of networks. Therein, the interaction between mass exchange and heat exchange is modeling formulated.The NLP model has later been examined using an example from literature, and the effectiveness of the proposed method has been demonstrated with the results. 展开更多
关键词 Mass exchange network Heat exchange network Superstructure Simultaneous synthesis
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