Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach
This study focuses on identifying the optimal switching frequency for silicon-carbide (SiC)-based motor drives across a wide range of operating conditions using a loss minimization strategy. The results are then compared with those of traditional silicon-insulated-gate bipolar transistor (IGBT) syst...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Open Journal of the Industrial Electronics Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/11002373/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849735808600244224 |
|---|---|
| author | Sepideh Amirpour Sima Soltanipour Torbjorn Thiringer Pranav Katta |
| author_facet | Sepideh Amirpour Sima Soltanipour Torbjorn Thiringer Pranav Katta |
| author_sort | Sepideh Amirpour |
| collection | DOAJ |
| description | This study focuses on identifying the optimal switching frequency for silicon-carbide (SiC)-based motor drives across a wide range of operating conditions using a loss minimization strategy. The results are then compared with those of traditional silicon-insulated-gate bipolar transistor (IGBT) systems. The approach involves conducting a comprehensive real-time finite element method (FEM) analysis of losses induced by pulsewidth modulation (PWM) voltages in an interior permanent magnet synchronous machine, compared to conventional sinusoidal current excitation feeding. The analysis integrates electromagnetic field simulations in Ansys Maxwell with the drive system control algorithm in Ansys Twin Builder, ensuring an accurate representation of their interactions. In addition, a method utilizing speed-adaptive core loss coefficients, which account for variable frequencies, is implemented for a more precise core loss estimation. The results reveal a notable discrepancy of up to 80<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> in the core loss calculations when using speed-adaptive coefficients versus fixed coefficients. By employing the real-time coupled simulations, the higher switching capabilities of SiC <sc>mosfet</sc>s could be effectively realized to optimize the PWM frequency over a broader range (10–50 kHz), particularly in the main drive region of electric vehicles, with differences of up to 20 kHz compared to IGBT systems. Furthermore, applying the proposed optimal PWM frequency profile in the worldwide harmonized light vehicle test cycle leads to a reduction of up to 22<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> in accumulated energy losses in the SiC motor drive compared to its IGBT counterpart. |
| format | Article |
| id | doaj-art-25a2573937f74a0998b0d2e9d307b8bc |
| institution | DOAJ |
| issn | 2644-1284 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of the Industrial Electronics Society |
| spelling | doaj-art-25a2573937f74a0998b0d2e9d307b8bc2025-08-20T03:07:27ZengIEEEIEEE Open Journal of the Industrial Electronics Society2644-12842025-01-01688389710.1109/OJIES.2025.356934911002373Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction ApproachSepideh Amirpour0https://orcid.org/0000-0001-6264-4168Sima Soltanipour1https://orcid.org/0009-0003-6814-1889Torbjorn Thiringer2https://orcid.org/0000-0001-5777-1242Pranav Katta3https://orcid.org/0009-0000-7574-0837ZEEKR Technology Europe, Gothenburg, SwedenVolvo Cars Corporations, Gothenburg, SwedenChalmers University of Technology, Gothenburg, SwedenVolvo Cars Corporations, Gothenburg, SwedenThis study focuses on identifying the optimal switching frequency for silicon-carbide (SiC)-based motor drives across a wide range of operating conditions using a loss minimization strategy. The results are then compared with those of traditional silicon-insulated-gate bipolar transistor (IGBT) systems. The approach involves conducting a comprehensive real-time finite element method (FEM) analysis of losses induced by pulsewidth modulation (PWM) voltages in an interior permanent magnet synchronous machine, compared to conventional sinusoidal current excitation feeding. The analysis integrates electromagnetic field simulations in Ansys Maxwell with the drive system control algorithm in Ansys Twin Builder, ensuring an accurate representation of their interactions. In addition, a method utilizing speed-adaptive core loss coefficients, which account for variable frequencies, is implemented for a more precise core loss estimation. The results reveal a notable discrepancy of up to 80<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> in the core loss calculations when using speed-adaptive coefficients versus fixed coefficients. By employing the real-time coupled simulations, the higher switching capabilities of SiC <sc>mosfet</sc>s could be effectively realized to optimize the PWM frequency over a broader range (10–50 kHz), particularly in the main drive region of electric vehicles, with differences of up to 20 kHz compared to IGBT systems. Furthermore, applying the proposed optimal PWM frequency profile in the worldwide harmonized light vehicle test cycle leads to a reduction of up to 22<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula> in accumulated energy losses in the SiC motor drive compared to its IGBT counterpart.https://ieeexplore.ieee.org/document/11002373/Core losseselectrified vehiclesenergy efficiencysilicon-carbide (SiC)-based motor drivesvoltage-source inverters (VSI)variable switching frequency |
| spellingShingle | Sepideh Amirpour Sima Soltanipour Torbjorn Thiringer Pranav Katta Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach IEEE Open Journal of the Industrial Electronics Society Core losses electrified vehicles energy efficiency silicon-carbide (SiC)-based motor drives voltage-source inverters (VSI) variable switching frequency |
| title | Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach |
| title_full | Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach |
| title_fullStr | Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach |
| title_full_unstemmed | Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach |
| title_short | Adaptive Determination of Optimum Switching Frequency in SiC-PWM-Based Motor Drives: A Speed-Dependent Core Loss Correction Approach |
| title_sort | adaptive determination of optimum switching frequency in sic pwm based motor drives a speed dependent core loss correction approach |
| topic | Core losses electrified vehicles energy efficiency silicon-carbide (SiC)-based motor drives voltage-source inverters (VSI) variable switching frequency |
| url | https://ieeexplore.ieee.org/document/11002373/ |
| work_keys_str_mv | AT sepidehamirpour adaptivedeterminationofoptimumswitchingfrequencyinsicpwmbasedmotordrivesaspeeddependentcorelosscorrectionapproach AT simasoltanipour adaptivedeterminationofoptimumswitchingfrequencyinsicpwmbasedmotordrivesaspeeddependentcorelosscorrectionapproach AT torbjornthiringer adaptivedeterminationofoptimumswitchingfrequencyinsicpwmbasedmotordrivesaspeeddependentcorelosscorrectionapproach AT pranavkatta adaptivedeterminationofoptimumswitchingfrequencyinsicpwmbasedmotordrivesaspeeddependentcorelosscorrectionapproach |