Modeling and Analysis of IGBT Power Module Electro-thermal Coupling Model

2021 ◽  
Author(s):  
Xianrong Fan ◽  
Yufeng Wang ◽  
Weilin Li
Keyword(s):  
Coupling Model ◽  
Thermal Coupling ◽  
Power Module ◽  
Modeling And Analysis

Modeling and Analysis of the Thermal State of Power Connector with the Safe Membrane

2012 ◽  
Vol 516-517 ◽  
pp. 1861-1864
Author(s):  
Jian Jun Xi ◽  
Jun Zhao
Keyword(s):  
Power System ◽  
Thermal State ◽  
Coupling Model ◽  
Thermal Coupling ◽  
Modeling And Analysis ◽  
State Of Power

The connector overheating is the cause of an accident of power system. It is a common way to apply conductive paste on the connector to avoid corrosion and overheat. This paper analyses the thermal state of the power connector with safe membrane by electric-thermal coupling model. It is concluded that the membrane is affected by permittivity itself.

Analysis of Transient Thermal Stress of IGBT Module Based on Electrical-Thermal-Mechanical Coupling Model

2014 ◽  
Vol 986-987 ◽  
pp. 823-827
Author(s):  
Qing Yuan Zheng ◽  
Min You Chen ◽  
Bing Gao ◽  
Nan Jiang
Keyword(s):  
Thermal Stress ◽  
Stress Distribution ◽  
Uniform Distribution ◽  
Inelastic Strain ◽  
Coupling Model ◽  
Power Module ◽  
Mechanical Coupling ◽  
Fem Method ◽  
Igbt Module ◽  
Solder Layer

Reliability of IGBT power module is one of the biggest concerns regarding wind power system, which generates the non-uniform distribution of temperature and thermal stress. The effects of non-uniform distribution will cause failure of IGBT module. Therefore, analysis of thermal mechanical stress distribution is crucially important for investigation of IGBT failure mechanism. This paper uses FEM method to establish an electrical-thermal mechanical coupling model of IGBT power module. Firstly, thermal stress distribution of solder layer is studied under power cycling. Then, the effects of initial failure of solder layer on the characteristic of IGBT module is investigated. Experimental results indicate that the strain energy density and inelastic strain are higher which will reduce reliability and lifetime of power modules.

scholarly journals Modeling and Analysis of a Ship’s Diesel Engine Thermal System

2020 ◽  
Vol 165 ◽  
pp. 06039
Author(s):  
Chen Zuotian ◽  
Lu Jia ◽  
Dong Qingfeng ◽  
Hu cun
Keyword(s):  
Diesel Engine ◽  
Simulation Models ◽  
Operating Conditions ◽  
Pipeline System ◽  
Thermal System ◽  
Thermal Coupling ◽  
Modeling And Analysis ◽  
Temperature Changes ◽  
Modular Model ◽  
System Nodes

This article takes the diesel thermal system as the research object, which simplifies the diesel engine system into four subsystems. This article conducts a thermodynamic analysis of the specific equipment of the host thermal system. Simulink tools in MATLAB are used to build simulation models of specific equipment in the thermal system, and a modular model is used to build a subsystem model based on the specific equipment model. Then, the thermal coupling relationship between the subsystems is used to form the thermal system. The overall model obtains the temperature values of the key nodes of the thermal system network, so that it can predict the temperature changes of the thermal pipeline system nodes of the diesel engine under various operating conditions.

Parameter updating method of a simplified first principles-thermal coupling model for lithium-ion batteries

2019 ◽  
Vol 256 ◽  
pp. 113924 ◽  
Author(s):  
Junfu Li ◽  
Lixin Wang ◽  
Chao Lyu ◽  
Dafang Wang ◽  
Michael Pecht
Keyword(s):  
Lithium Ion Batteries ◽  
First Principles ◽  
Lithium Ion ◽  
Coupling Model ◽  
Thermal Coupling

The effect of electrode design parameters on battery performance and optimization of electrode thickness based on the electrochemical–thermal coupling model

2019 ◽  
Vol 3 (1) ◽  
pp. 148-165 ◽  
Author(s):  
Wenxin Mei ◽  
Haodong Chen ◽  
Jinhua Sun ◽  
Qingsong Wang
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Coupling Model ◽  
Design Parameters ◽  
Electrode Design ◽  
Thermal Coupling ◽  
Electrode Thickness ◽  
Electrochemical Model

Schematic of the lithium-ion battery and description of the P2D electrochemical model.

scholarly journals Electromechanical coupling dynamic modeling and analysis of vertical electrodynamic shaker considering low frequency lateral vibration

2020 ◽  
Vol 12 (10) ◽  
pp. 168781402096385
Author(s):  
Shuguang Zuo ◽  
Zhaoyang Feng ◽  
Jian Pan ◽  
Xudong Wu
Keyword(s):  
Dynamic Model ◽  
Electromechanical Coupling ◽  
Low Frequency ◽  
Coupling Model ◽  
Vertical Position ◽  
Force Model ◽  
Lateral Vibration ◽  
Modeling And Analysis ◽  
Electrodynamic Shaker ◽  
Coupling Dynamic

For the problem of relatively severe lateral vibration found in the vertical electrodynamic shaker experiment, an electromechanical coupling dynamic model of the electrodynamic shaker considering low-frequency lateral vibration is proposed. The reason and mechanism of the lateral vibration is explained and analyzed through this model. To establish this model, an electromagnetic force model of overall conditions is firstly built by fitting force samples with neural network method. The force samples are obtained by orthogonal test of finite element simulation, in which five factors of the moving coil including current, vertical position, flipping eccentricity angle, radial translational eccentric direction and distance are considered. Secondly, a 7-dof dynamic model of the electrodynamic shaker is developed with the consideration of the lateral vibration of the moving system. To obtain the transfer function accurately, the stiffness and damping parameters are identified. Finally, an electromechanical dynamic model is established by coupling the force model and the 7-dof dynamic model, and it is verified by experiments. The coupling model proposed can be further used for the control and optimization of the electrodynamic shaker.

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