Improvement of the thermal flow with potting structured inductor for high power density in 40kW DC-DC converter

You, Bong-Gi; Lee, Byoung-Kuk; Lee, Sang‐Won; Jeong, Man-Chul; Kim, Jun-Hyung; Jeong, Inbum

doi:10.1109/vppc.2012.6422783

Cited by 9 publications

(5 citation statements)

References 3 publications

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“…Thus, using the expressions (4), (10) and (11), the contact power losses can be computed as follows,…”

Section: Rmsmentioning

confidence: 99%

“…For the traction motors, the volume of the motors can be decreased significantly by improving the thermal flows across the inductor. The silicone resin potted high power inductor for DC/DC switch-mode boost converters can be used [10] in comparison with classical air-cooled inductors, simulations and test being presented for a 40 kW DC-DC converter. In [11] is presented an experimental analysis of multichip IGBT package modules, combining rapid transient short-circuit electrical measurements with infrared thermal mapping considering realistic operating conditions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermal Analysis of Power Rectifiers in Steady-State Conditions

Pleşca

Mihet‐Popa

2020

Energies

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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.

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“…Thus, using the expressions (4), (10) and (11), the contact power losses can be computed as follows,…”

Section: Rmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal Analysis of Power Rectifiers in Steady-State Conditions

Pleşca

Mihet‐Popa

2020

Energies

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“…The comparison of several magnetic core materials is provided in [3, 11, 25, 27, 28]. The comparison of four magnetic materials namely Mega‐Flux, JNEX‐Core, amorphous, and ferrite cores for a buck–boost inductor for HEVs is provided in [25].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive comparison and selection of magnetic materials for powertrain DC–DC converters

Beraki

Trovão

Perdigão

2020

IET Electrical Systems in Transportation

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In power powertrain, DC-DC converters, the selection of suitable magnetic core materials is a critical design consideration. It ensures weight and volume reduction and performance enhancement of such types of converters. This study provides a comprehensive comparison of magnetic core materials and a simplified cobweb chart that aids in the initial selection of magnetic core materials for powertrain DC-DC converters. The weighted property method (WPM) is used to systematically select and rank the suitability of the magnetic core materials, and a multi-attribute decision-making analytical hierarchy processes is used to calculate the relative weight of different properties. Based on the peculiar requirements of powertrain DC-DC converters, the most suitable magnetic core materials are identified and ranked with the help of the cobweb chart and the WPM. This study aims at providing a quick reference for designers to ease the selection of suitable magnetic core material for powertrain DC-DC converters.

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“…For almost all industrial and commercial applications the power consumption increases continuously thus it becomes impossible for a single-phase converter to withstand the high current stress [18][19][20]. One of the ways how to optimize this negative characteristic is a connection of converter cells in parallel instead of paralleling switching devices of a single cell [21]. The multiphase interleaved converters thus have benefits related to better transient response, power scalability, and better light load efficiency [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

The Study of the Operational Characteristic of Interleaved Boost Converter with Modified Coupled Inductor

et al. 2019

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In this article, design, analysis, and experimental testing of a dual interleaved boost converter with coupled inductor including demagnetizing winding are presented. Proposed topology uses the specific design of boost coils placed within the side parts of the EE core together with a demagnetizing coil located on the center part of the core. Paper describes principles of operational scenarios and characteristics. Through modification of turns ratio between boost coils and demagnetizing coil is possible to achieve high voltage gain. Consequently, the functional performance of this perspective topology is realized experimentally. For that purpose, the physical sample of converter is designed and tested in terms of efficiency considering the change of transferred power or the change of input voltage. Through modification of turns ratio between boost coils and demagnetizing coil is possible to achieve high voltage gain, therefore these dependencies are also evaluated considering also the change of the duty cycle. At the end of the paper basic operational properties are compared to standard boost topologies. It was discovered that even due to higher complexity of the proposed converter oppose to selected topologies, the operational performance is much better considering ripple of the electrical variables, efficiency, or the size of circuit components.

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Improvement of the thermal flow with potting structured inductor for high power density in 40kW DC-DC converter

Cited by 9 publications

References 3 publications

Thermal Analysis of Power Rectifiers in Steady-State Conditions

Thermal Analysis of Power Rectifiers in Steady-State Conditions

Comprehensive comparison and selection of magnetic materials for powertrain DC–DC converters

The Study of the Operational Characteristic of Interleaved Boost Converter with Modified Coupled Inductor

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