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一种作用于电机控制板的数据驱动传热模型
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作者 刘逸羽 《电子制作》 2024年第16期80-82,89,共4页
电机驱动系统在热环境下运行面临挑战,传统有限元热分析方法效率较低。本文基于Cauer传热原理,构建了电机驱动板固体传热模型,通过电热类比建立等效热阻网络,利用Simulink仿真分析。与COMSOL软件建立的模型对比,结果显示,IBGT芯片和二... 电机驱动系统在热环境下运行面临挑战,传统有限元热分析方法效率较低。本文基于Cauer传热原理,构建了电机驱动板固体传热模型,通过电热类比建立等效热阻网络,利用Simulink仿真分析。与COMSOL软件建立的模型对比,结果显示,IBGT芯片和二极管结温误差小,证明该模型能有效预测芯片结温,提高热设计效率。此数据驱动模型有助于确保电机控制板在实际工作中的可靠性和寿命,为电机驱动控制板的热设计提供新方法。 展开更多
关键词 数据传热模型 结温 热分析 电机控制板
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Development of in-situ testing equipment of rock and soil thermophysical properties
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作者 Qinghua WANG Youhong SUN Qiang LI 《Global Geology》 2008年第4期237-241,共5页
A mobile in-situ testing equipment used to detect geotechnical thermophysical properties was developed. The equipment is composed of a heat pump, frequency pumps, an electric tee joint regulator valve, some sensors, a... A mobile in-situ testing equipment used to detect geotechnical thermophysical properties was developed. The equipment is composed of a heat pump, frequency pumps, an electric tee joint regulator valve, some sensors, an electric control system, data acquisition and control system, which can do tests under the condition of extracting and storing subsurface heat. Applying the line source and the cylinder source heat transfer model, and combining the parameters estimation, the average thermophysieal property parameters of rock and soil will be calculated, which provides the basis for designing the ground source heat pump systems. 展开更多
关键词 thermophysical properties field testing equipment data processing systems heat transfer model
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