A NUMERICAL STUDY ON EFFICIENCY IMPROVEMENT OF HEAT TRANSFER FOR A 3-PHASE INVERTER

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DELARAM HAMIDEH; DASTFAN ALI; NOROUZI MAHMOOD

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:2 Page(s): 13-24

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Information Journal Paper

Title

A NUMERICAL STUDY ON EFFICIENCY IMPROVEMENT OF HEAT TRANSFER FOR A 3-PHASE INVERTER

Author(s)

DELARAM HAMIDEH | DASTFAN ALI | NOROUZI MAHMOOD | Issue Writer Certificate

Keywords

POWER INVERTERQ2

THERMAL MANAGEMENTQ2

LAYOUT DESIGNQ2

HEATSINK GEOMETRY DESIGNQ2

HEATSINK EFFICIENCYQ2

Abstract

In this paper, 3-D simulation of heat transfer in a power electronic device and its cooling system is performed. The device is a high voltage three-phase inverter manufactured by Semikron Company; its main application is in electric and hybrid vehicles. Cooling system is a forced-air plate-fin heat sink. A limitation factor of designing heat transfer is maximum temperature of the inverter’s chips, heat sources, called IGBT. Maximum temperature of IGBTs should be below 125oC in order to avoid both the thermal and the mechanical failures. One of the primary objectives is the reduction of the maximum temperature by designing the layout of chips. Also, the HEATSINK GEOMETRY DESIGN is accomplished by taking intoconsideration the maximum temperature and tradeoff between both the usage material volume and the HEATSINK EFFICIENCY. Geometries are the number of fins, the fin height, fin thickness and the base thickness of the heatsink. The power dissipation is estimated using datasheet information and output waveforms obtained from simulation in MATLAB. A thermal model of the inverter and its cooling system are simulated by using finite-element method (FEM). The accuracy of the thermal model and power dissipation estimation are verified by Semisel software. The maximum temperature is significantly reduced about 20ᵒC by designing the layout precisely. Also, the HEATSINK EFFICIENCY is increased 10.35%, 16.67% and 27.51% with the increase of the material volume about 22.52%, 13.51% and 0% for the heat transfer coefficient, 50, 75 and 100 (W/m2.K) by good design of the heatsink geometry, respectively.

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APA: Copy

DELARAM, HAMIDEH, DASTFAN, ALI, & NOROUZI, MAHMOOD. (2015). A NUMERICAL STUDY ON EFFICIENCY IMPROVEMENT OF HEAT TRANSFER FOR A 3-PHASE INVERTER. MODARES MECHANICAL ENGINEERING, 15(2), 13-24. SID. https://sid.ir/paper/179726/en

Vancouver: Copy

DELARAM HAMIDEH, DASTFAN ALI, NOROUZI MAHMOOD. A NUMERICAL STUDY ON EFFICIENCY IMPROVEMENT OF HEAT TRANSFER FOR A 3-PHASE INVERTER. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(2):13-24. Available from: https://sid.ir/paper/179726/en

IEEE: Copy

HAMIDEH DELARAM, ALI DASTFAN, and MAHMOOD NOROUZI, “A NUMERICAL STUDY ON EFFICIENCY IMPROVEMENT OF HEAT TRANSFER FOR A 3-PHASE INVERTER,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 2, pp. 13–24, 2015, [Online]. Available: https://sid.ir/paper/179726/en

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