Loss and Efficiency Improvement of EV Traction Drive System by Using SiC in Inverter
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Abstract
This paper investigates the effectiveness of employing SiC MOSFETs compared to Si-IGBTs in the two-level inverter for the traction motor drives in electric vehicles. The study focuses on the differences in structure and material between SiC MOSFETs and Si-IGBTs by which the conduction and switching losses can be reduced by over 40% and 60%, respectively, when a SiC MOSFET inverter is employed. This advantage enables the SiC MOSFET inverter to drive the traction motor at a higher switching frequency, surpassing traditional Si-IGBT inverters' capabilities. To assess the performance of the systems, simulations are conducted using the PLECS simulation platform. The comparison includes evaluating the traction drive system's efficiency and losses with SiC MOSFET and Si-IGBT inverters on the IPMSM traction motor torque-speed curve; the result shows that the efficiency is improved by over 1% on the entire torque-speed curve. Moreover, the paper also explores the trade-off between the switching frequency and motor harmonic core loss of the motor. This evaluation offers a comprehensive understanding of the interplay between these factors and aids in optimizing the performance of the traction motor system.
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References
U.S. Department of Energy. “Where the Energy Goes: Electric Cars.” FUELECONOMY.gov. https://www.fueleconomy.gov/feg/atv-ev.shtml (accessed Dec. 1, 2022).
I. Husain et al., “Electric drive technology trends, challenges, and opportunities for future electric vehicles,” Proc. IEEE, vol. 109, no. 6, Jun. 2021, pp. 1039–1059.
V. Ruuskanen, J. Nerg, M. Rilla, and J. Pyrhönen, “Iron loss analysis of the permanent-magnet synchronous machine based on finite-element analysis over the electrical vehicle drive cycle,” IEEE Trans. Ind. Electron., vol. 63, no. 7, pp. 4129–4136, Jul. 2016, doi: 10.1109/TIE.2016.2549005.
M. Younkins, P. Carvell, and J. Fuerst, “Dynamic motor drive: Optimizing electric motor controls to improve efficiency,” presented at 42nd Int. Vienna Motor Symp., Vienna, Austria, Apr. 29-30, 2021.
L. Shao, A. E. H. Karci, D. Tavernini, A. Sorniotti, and M. Cheng, “Design approaches and control strategies for energy-efficient electric machines for electric vehicles—A review,” IEEE Access, vol. 8, pp. 116900–116913, 2020.
Y. Miyama, M. Hazeyama, S. Hanioka, N. Watanabe, A. Daikoku, and M. Inoue, “PWM carrier harmonic iron loss reduction technique of permanent-magnet motors for electric vehicles,” IEEE Trans. Ind. Appl., vol. 52, no. 4, pp. 2865–2871, 2016, doi: 10.1109/TIA.2016.2533598.
O. Wallscheid, M. Meyer, and J. Böcker, “An open-loop operation strategy for induction motors considering iron losses and saturation effects in automotive applications,” in Proc. IEEE 11th Int. Conf. Power Electron. and Drive Syst., Sydney, Australia, 2015, pp. 981–985.
S. Vaez, V. I. John, and M. A. Rahman, “Energy saving vector control strategies for electric vehicle motor drives,” in Proc. Power Convers. Conf. - PCC '97, Nagaoka, Japan, Aug. 1997, pp. 13–18.
M. Alnajjar and D. Gerling, “Minimization of energy losses in the traction drive of HEV using optimized adaptive control,” in Proc. IEEE Veh. Power and Propulsion Conf. (VPPC), Coimbra, Portugal, 2014, pp. 1–6.
A. Choudhury, P. Pillay, and S. S. Williamson, “Comparative analysis between two-level and three-level DC/AC electric vehicle traction inverters using a novel DC-Link voltage balancing algorithm,” IEEE J. Emerg. Sel. Topics Power Electron., vol. 2, no. 3, pp. 529–540, Sep. 2014.
N. Sorokina et al., “Inverter and battery drive cycle efficiency comparisons of multilevel and two-level traction inverters for battery electric vehicles,” in Proc. IEEE Int. Conf. Environ. and Elect. Eng. and IEEE Ind. & Commercial Power Syst. Eur. (EEEIC / I&CPS Europe), Bari, Italy, Nov. 2021, pp. 1–8.
X. Zhang, J. Y. Gauthier, and X. Lin-Shi, “A composite converter with reduced power electronics for electric powertrain applications,” in Proc. IEEE Energy Convers. Congr. and Expo. (ECCE), Vancouver, Canada, Oct. 2021, pp. 1468–1475.
E. Libbos, E. Krause, A. Banerjee, and P. T. Krein, “Inverter design considerations for variable-pole induction machines in electric vehicles,” IEEE Trans. Power Electron., vol. 37, no. 11, pp. 13554–13565, Nov. 2022.
J.-I. Itoh and T. Ogura, “Evaluation of total loss for an inverter and motor by applying modulation strategies,” in Proc. 14th Int. Power Electron. and Motion Control Conf. EPE-PEMC, Ohrid, Macedonia, Sep. 2010, pp. S12-21–S12-28, doi: 10.1109/epepemc.2010.5606664.
R. Menon, N. A. Azeez, A. H. Kadam, and S. S. Williamson, “Energy loss analysis of traction inverter drive for different PWM techniques and drive cycles,” in Proc. IEEE Int. Conf. Ind. Electron. Sustain. Energy Syst. (IESES), Hamilton, New Zealand, 2018, pp. 201–205.
A. Choudhury, P. Pillay, and S. S. Williamson, “A hybrid PWM-based DC-link voltage balancing algorithm for a three-level NPC DC/AC traction inverter drive,” IEEE J. Emerg. Sel. Topics Power Electron., vol. 3, no. 3, pp. 805–816, Sep. 2015, doi: 10.1109/JESTPE.2015.2439296.
K. Kumar and S. B. Santra, “Performance analysis of a three-phase propulsion inverter for electric vehicles using GaN semiconductor devices,” IEEE Trans. Ind. Appl., vol. 54, no. 6, pp. 6247–6257, 2018, doi: 10.1109/TIA.2018.2862400.
Y. Nakayama et al., “Efficiency improvement of motor drive system by using a GaN three phase inverter,” in Proc. IEEE Int. Conf. Ind. Technol. (ICIT), Melbourne, Australia, Feb. 2019, pp. 1599–1604, doi: 10.1109/ICIT.2019.8755018.
K. Ohta et al., “Variable switching frequency control for efficiency improvement of motor drive system by using GaN three phase inverter,” in Proc. IEEE Int. Conf. Ind. Technol. (ICIT), Buenos Aires, Argentina, Feb. 2020, pp. 119–123, doi: 10.1109/ICIT45562.2020.9067266.
J. Lu, R. Hou, P. Di Maso, and J. Styles, “A GaN/Si hybrid T-type three-level configuration for electric vehicle traction inverter,” in Proc. IEEE 6th Workshop Wide Bandgap Power Devices and Appl. (WiPDA), Atlanta, GA, USA, 2018, pp. 77–81.
J. Guo, “Modeling and design of inverters using novel power loss calculation and DC-Link current/voltage ripple estimation methods and bus bar analysis,” Ph.D. dissertation, Dept. Elect. Comput. Eng., McMaster Univ., Hamilton, Canada, 2017.
N. Denis, S. Odawara, and K. Fujisaki, “Attempt to evaluate the building factor of a stator core in Inverter-Fed permanent magnet synchronous motor,” IEEE Trans. Ind. Electron., vol. 64, no. 3, pp. 2424–2432, Mar. 2017.
E. J. Tarasiewicz, A. S. Morched, A. Narang, and E. P. Dick, “Frequency dependent eddy current models for nonlinear iron cores,” IEEE Trans. Power Syst., vol. 8, no. 2, pp. 588–597, May 1993.