Balkan Journal of Electrical and Computer Engineering

2147-284X 2147-284X

MUSA YILMAZ

10.17694/bajece.1619631

Electrical Engineering (Other)

Elektrik Mühendisliği (Diğer)

Calculation of Power Losses for SiC MOSFET Based 3-Phase 3-Level T-Type Inverter

https://orcid.org/0000-0002-9048-6547

Deniz

Erkan

FIRAT UNIVERSITY

https://orcid.org/0000-0003-4304-0099

Turan

Berkan

FIRAT ÜNİVERSİTESİ

09 30 2025

13 3 253 262 01 14 2025 02 09 2025

2013

Balkan Journal of Electrical and Computer Engineering

In recent years, interest in highly efficient and compact power converters in power electronics applications has been increasing day by day. In this study, a SiC MOSFET-based 3-level (3L) T-Type inverter (TNPC) is proposed to obtain a high-efficiency and compact converter. Considering the MSCSM120HRM163AG-SiC-MOSFET intelligent power modules (IPM) developed by Microchip for 3L T-Type inverter, the power losses of a 3-phase 3-level T-Type inverter are calculated in MATLAB environment. To demonstrate the efficiency of SiC MOSFET based T-Type Inverter, a 3-phase 3L T-Type inverter feeding a vector-controlled 3-phase PMSM is simulated using MATLAB/Simulink and Simscape blocks. In the simulation, the PMSM is operated at different speed references under almost full load (42.09 Nm). While the PMSM operates at 3000 rpm under 40Nm load, the voltage-current waveforms of the SiC MOSFETs in the T-Type inverter are obtained. Using these waveforms and the data from the data sheets of the IPMs, the power losses of the 3L TNPC inverter are calculated for different switching frequencies. The Space Vector PWM method used to generate 50 kHz PWM signals for the 3L T-Type inverter also ensures that the dc-link capacitor voltages remain balanced. In addition, the variations of line-to-line voltage and dc-link capacitor voltages of the inverter and the variations of speed, torque, rotor position, d-q currents, and stator currents of the PMSM are given.

Three-level T-Type inverter SiC MOSFET power loss calculation PMSM space vector PWM (SVPWM)

[1] W. da S. Lima et al. "A bidirectional isolated integrated ac–dc converter based on an interleaved 3-level T-type power converters." IEEE Access, vol. 9, 2021, pp 142754-142767.

[2] R. Phukan et al. "Characterization and mitigation of conducted emissions in a SiC based three-level T-Type motor drive for aircraft propulsion." IEEE Transactions on Industry Applications, vol. 59.3, 2023, pp 3400-3412.

[3] E. Deniz, H. Altun. "Bes Seviyeli Izole DA Kaynakli Kaskat Inverterin SDGM Teknigi Ile Kontrolu." SAU Journal of Science, vol. 11. 1, 2007, pp 1–9.

[4] A. Nabae, I. Takahashi, H. Akagi. "A new neutral-point-clamped PWM inverter." IEEE Transaction Industrial Application, vol. IA. 17(5), 1981, pp 518–523.

[5] T. Bruckner, S. Bernet, H. Guldner. "The active NPC converter and its loss-balancing control." IEEE Transaction Ind. Electronics, vol. 52. 3, 2005, pp 855–868.

[6] M. Schweizer, I. Lizama, T. Friedli and J. W. Kolar, "Comparison of the chip area usage of 2-level and 3-level voltage source converter topologies." IECON 2010 - 36th Annual conference on IEEE Industrial Electronics Society. Glendale, AZ, 2010.

[7] Z. Wang, "Design and validation of a high-power, high density all silicon carbide three-level inverter." Ph.D Thesis, Electrical Engineering, University of Arkansas, 2021.

[8] Z. Wang, Y Wu, et al. "Busbar design and optimization for voltage overshoot mitigation of a silicon carbide high-power three-phase TNPC inverter." IEEE Transactions on Power Electronics, vol. 36.1, 2021, pp 204-214.

[9] A. I. Emon, Z. Yuan, A. B. Mirza, A. Deshpande, M. U. Hassan and F. Luo, "1200 V/650 V/160 A SiC+Si IGBT 3L Hybrid T-Type NPC Power Module With Enhanced EMI Shielding," in IEEE Transactions on Power Electronics, vol. 36, no. 12, 2021, pp 13660-13673.

[10] H. Peng, et al. "Improved space vector modulation for neutral-point balancing control in hybrid-switch-based TNPC neutral point-clamped inverters with loss and common-mode voltage reduction." CPSS Transactions on Power Electronics and Applications, vol. 4.4, 2019, pp 328-338.

[11] P. Azer, J. Bauman, "An asymmetric three-level T-type converter for switched reluctance motor drives in hybrid electric vehicles." 2019 IEEE Transportation Electrification Conference and Expo (ITEC), Detroit, MI, 2019.

[12] D. Xiao, J. Bauman, "Power loss comparison between three-level T-type and NPC converters with SVPWM and MPCC modulation schemes in electric vehicles." 2020 IEEE Transportation Electrification Conference and Expo (ITEC), Chicago, IL, 2020.

[13] R. A. Ghaderloo, C. Singhabahu, R. Resalayyan and A. Khaligh, "Selection of three-phase inverter topology and optimization of the pcb layout of a T-type bridge-leg for power dense motor drive application." 2024 4th International Conference on Smart Grid and Renewable Energy (SGRE), Doha, Qatar, 2024.

[14] Z. Yuan et al., "A 1.2 kV 400A SiC-Mosfet based 3L-TNPC power module with improved hybrid packaging method for high-density applications," 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, USA, 2021.

[15] M. H. Adeli, E. Deniz, N. Altin, S. Ozdemir and A. Nasiri, "Compact GaN-Based 25kW, 480V Three-Level Active Front End Rectifier," 2024 IEEE Sixth International Conference on DC Microgrids (ICDCM), Columbia, SC, USA, 2024. doi: 10.1109/ICDCM60322.2024.10665131.

[16] A. Nasiri, M. H. Adeli, E. Deniz. "Active Neutral Point Clamped Electric Drive Converters Using WBG Devices." Wide Bandgap Power Electronics, Emerging Converter Technologies and Applications, edited by Isik C. Kizilyalli, Z. John Shen, Thomas M. Jahns, and Daniel W. Cunningham, Springer Cham, pp. 417-451, August, 2025. https://doi.org/10.1007/978-3-031-78631-0_16

[17] Z. Yuan et al., "A 1.2 kV 400A SiC-MOSFET Based 3L-TNPC Power Module with Improved Hybrid Packaging Method for High-Density Applications," 2021 IEEE Applied Power Electronics Conference and Exposition (APEC), Phoenix, AZ, USA, 2021.

[18] A. I. Emon et al, "1200 V/650 V/160 A SiC+Si IGBT 3L Hybrid T-Type NPC Power Module With Enhanced EMI Shielding," IEEE Transactions on Power Electronics, vol. 36.12, 2021, pp. 13660-13673.

[19] M. H. Adeli, N. Altin, E. Deniz, and A. Nasiri, "EMI Modeling of PCB-Based Three-Level Active Neutral-Point-Clamped GaN Converter." IEEE Applied Power Electronics Conference and Exposition (APEC2025), Atlanta, GA, USA, March 16-20, 2025. (Accepted).

[20] R. A. Ghaderloo, C. Singhabahu, R. Resalayyan and A. Khaligh, "Selection of Three-phase Inverter Topology and Optimization of the PCB Layout of a T-type Bridge-Leg for Power Dense Motor Drive Application," 2024 4th International Conference on Smart Grid and Renewable Energy (SGRE), Doha, Qatar, 2024.

[21] "PCB design techniques to reduces EMI", www.altium.com, 2024.

[22] "Conducted and Radiated Emissions Testing", Tektronix Application Note, pp 1-34

[23] R. Oberhuber. "Low-EMI designs for isolated ADC signal-chain solutions", Analog Design Journal, Texas Instrument, 2024.

[24] B. Turan, "Üç fazlı üç seviyeli T-Tipi inverterden beslenen sürekli mıknatıslı senkron motorun vektör kontrolü." Yüksek Lisan Tezi, Fırat Üniversitesi, Fen bilimleri Enstitüsü, Elektrik Elektronik Mühendisliği Teknolojileri Programı, 2021.

[25] C. Mohan, "A generalized predictive controlled TNPC power inverter with a deterministic dc-link capacitor voltage balancing approach." Master Thesis, Universidad De Sevilla Escuela Tecnica Superior De Ingenieria, Sevilla, 2015.

[26] E. Deniz, "ANN-based MPPT algorithm for standalone photovoltaic PMSM drive system without dc-dc boost converter." IENSC2018 International Engineering and Natural Sciences Conference, Diyarbakir, Turkiye, 14-17 November 2018.

[27] E. Deniz, "Medium and large vector-based SVPWM technique for five-phase two-level inverter." European Journal of Technique (EJT), vol.11.2, pp 209-216, 2021. https://doi.org/10.36222/ejt.1029249

[28] E. Deniz, O Aydogmus, "Comparison of asynchronous motor drives fed by three-level H-bridge inverter using SPWM and SVPWM. 6th International Advanced Technologies Symposium, Elazig/Turkey, pp. 448–454, May 16-18, 2011.

[29] B. Wu, High-Power Converters and AC Drives, IEEE Press, Hoboken, New Jersey, USA, 2006.

[30] A. Gündoğdu, "Matris konvertörden beslenen sabit mıknatıslı senkron motorun vektör kontrolünün sayısal benzetimi." Yüksek Lisans Tezi, Fırat Üniversitesi Fen Bilimleri Enstitüsü, 2005.

[31] Ö. Aydoğmuş, "Matris Çevirici ile beslenen sürekli mıknatıslı senkron motor sürücü tasarımı ve algılayıcısız hız denetimi." Doktora Tezi, Fırat Üniversitesi, Fen bilimleri Enstitüsü, 2011.

[32] A. Gundogdu, H. Altun, "Simulation of a RL load fed by a matrix converter with Matlab/Simulink." Journal of The Faculty of Engineering and Architecture of Gazi University, vol. 24.2), 2009, pp 199-207.

[33] A. Gundogdu, H. Kizmaz, R. Celikel, M. Yilmaz, "Speed sensorless adaptive power control for photovoltaic-fed water pump using extended Kalman–Bucy filter." Energy Reports, 10, 2023, pp. 1785–1795.