Comparison of thermal performance between parallel MOSFETs and IPM
ID:169
Submission ID:1462 View Protection:PUBLIC
Updated Time:2020-10-29 19:55:18
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Poster Presentation
Abstract
Aiming at the heat dissipation problem of power module in miniaturization of motor controller, an innovative parallel MOSFET scheme is designed to replace the mainstream traditional power module. Firstly, the switching time in the motor SVPWM control is analyzed, and the loss calculation method of MOSFET and IPM under different current conditions is introduced in detail. According to the calculated device loss and external heat dissipation conditions, the heat conduction network models of parallelMOSFETs and integrated module IPM are established.The thermal simulation is designed based on ANSYS software. The temperature rise experiment is carried out by means of motor pair dragging. The temperature difference between them is compared under the conditions of 100V DC bus voltage and 30A output current.The simulation and experimental results show that the thermal performance of the motor controller can be effectively improved by using the parallel MOSFET scheme under the same control effect and control ability. This provides technical support for Reliability Application of miniaturization of motor controller.
Keywords
Parallel MOSFETs,IPM,loss calculation,ANSYS,thermal model,heat dissipation
Submission Author
Kunpeng Fan
Shanghai University
Jian Luo
Shanghai University
Zhihui Jin
Shanghai University
Boyang Li
Shanghai Unversity
University
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