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| Efficiency Evaluation of a 55kW Soft-Switching Module Based Inverter for High Temperature Hybrid Electric Vehicle Drives Application |
| Hu Weitao1, Sun Pengwei2 |
| 1. Hebei Electric Power Corporation Extra-High Voltage Transmission & Transformation Branch Shijiazhuang 050070 China; 2. Future Energy Electronics Center Virginia Polytechnic Institute and State University Blacksburg 24060 U.S.A. |
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Abstract This paper presents a 55kW three-phase soft-switching inverter for hybrid electric vehicle drives at high temperature conditions. Highly integrated soft-switching modules are employed to achieve switching loss as well as conduction loss reduction. Detailed experimental evaluations of inverter efficiency are conducted through both inductive load and motor- dynamometer load at coolant temperatures ranging from 25℃ to 90℃. Efficiency measurement using power meter shows that the peak efficiency is around 99%, and it drops slightly at lower speed and higher temperature conditions. To ensure measurement fidelity, a double chamber differential calorimeter system is designed and calibrated for the inverter testing. Through long-hour testing, the measured efficiencies consistently show 99% and higher. The soft-switching inverter is operated reliably and demonstrated high efficiency at different temperatures and test conditions.
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Received: 08 October 2010
Published: 07 March 2014
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[1] Lai J, Yu W, Qian H, et al. High temperature device characterization for hybrid electric vehicle traction inverters[C]. Proceedings of the IEEE Applied Power Electronics Conference and Exposition, 2009: 665-670.
[2] Hornberger J M, Cilio E, Schupbach R M. A high- temperature multichip power module inverter utilizing silicon carbide and silicon on insulator electronics[C]. Proceedings of the IEEE Power Electronics Specialists Conference, 2006: 1-7.
[3] Friedrichs P. Silicon carbide power devices-status and upcoming challenges[C]. Proceedings of the IEEE Power Electronics and Applications European Conference, 2007: 1-11.
[4] Ozpineci B, Chintavali M, Tolbert L M. A 55kW three-phase automotive traction inverter with SiC schottky diodes[C]. Proceedings of the IEEE Vehicle Propulsion and Power Conference, 2005: 541-546.
[5] Yu W, Lai J S, Park S Y. An improved zero-voltage- switching inverter using two coupled magnetics in one resonant pole[C]. Proceedings of the IEEE Applied Power Electronics Conference and Exposition, 2009: 401- 406.
[6] Lai J S, Yu W, Park S Y. Variable timing control for wide current range zero-voltage soft-switching inverters[C]. Proceedings of the IEEE Applied Power Electronics Conference and Exposition, 2009: 407-412.
[7] F Blaabjerg, Pedersen J K, Ritchie E. Calorimetric measuring systems for characterizing high frequency power losses in power electronic components and systems[C]. Proceedings of the IEEE Industry Applications Conference, 2002: 1368-1376.
[8] Malliband P D, Van der Duijn Schouten N P. Precision calorimetry for the accurate measurement of inverter losses[C]. Proceedings of the IEEE International Conference on Power Electronics and Drive Systems, 2003: 321-326.
[9] Cao W P, Bradley K J, Ferrah A. Development of a high-precision calorimeter for measuring power loss in electrical machines[J]. IEEE Transactions on Instrumentation and Measurement, 2009, 58(3): 570- 577.
[10] Jalilian A, Gosbell V J, Perera B S P, et al. Double chamber calorimeter (DCC): a new approach to measure induction motor harmonic losses[J]. IEEE Transactions on Energy Conversion, 1999, 14(3): 680-685. |
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2011, Vol. 26 
