Thermal Analysis of Power Rectifiers in Steady-State Conditions

Adrian Plesca and Lucian Mihet-Popa
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Adrian Plesca: Faculty of Electrical Engineering, Gheorghe Asachi Technical University of Iasi, Blvd, Dimitrie Mangeron, 21-23, Iasi 700050, Romania
Lucian Mihet-Popa: Faculty of Engineering, Østfold University College, BRA Veien 4, 1671 Fredrikstad, Norway

Energies, 2020, vol. 13, issue 8, 1-19

Abstract: Power rectifiers from electrical traction systems, but not only, can be irreversibly damaged if the temperature of the semiconductor junction reaches high values to determine thermal runaway and melting. The paper proposes a mathematical model to calculate the junction and the case temperature in power diodes used in bridge rectifiers, which supplies an inductive-resistive load. The new thermal model may be used to investigate the thermal behavior of the power diodes in steady-state regime for various values of the tightening torque, direct current through the diode, airflow speed and load parameters (resistance and inductance). The obtained computed values were compared with 3D thermal simulation results and experimental tests. The calculated values are aligned with the simulation results and experimental data.

Keywords: power rectifier; temperature distribution; mathematical model; thermal modeling and simulation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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