Abstract
As motor drive inverters continue to employ Silicon Carbide (SiC) and Gallium Nitride (GaN) devices for power density improvements, sensorless motor control strategies can be developed with field-programmable gate arrays (FPGA) to take advantage of high inverter switching frequencies. Through the FPGA's parallel processing capabilities, a high control bandwidth sensorless control algorithm can be employed. Sensorless motor control offers cost reductions through the elimination of mechanical position sensors or more reliable electric drive systems by providing additional position and speed information of the electric motor. Back electromotive force (EMF) estimation or model-based methods used for motor control provide precise sensorless control at high speeds; however, they are unreliable at low speeds. High frequency injection (HFI) sensorless control demonstrates an improvement at low speeds through magnetic saliency tracking. In this work, a sinusoidal and square-wave high frequency injection sensorless control method is utilized to examine the impact an interior permanent magnet synchronous machine's (IPMSM) fundamental frequency, injection frequency, and switching frequency have on the audible noise spectrum and electrical angle estimation. The audible noise and electrical angle estimation are evaluated at different injection voltages, injection frequencies, switching frequencies, and rotor speeds.
Original language | English |
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Title of host publication | 2021 IEEE 8th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 194-198 |
Number of pages | 5 |
ISBN (Electronic) | 9781665401814 |
DOIs | |
State | Published - 2021 |
Externally published | Yes |
Event | 8th Annual IEEE Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021 - Virtual, Online, United States Duration: Nov 7 2021 → Nov 11 2021 |
Publication series
Name | 2021 IEEE 8th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021 - Proceedings |
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Conference
Conference | 8th Annual IEEE Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021 |
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Country/Territory | United States |
City | Virtual, Online |
Period | 11/7/21 → 11/11/21 |
Funding
ACKNOWLEDGMENT Authors would like to thank the support of DOE Wide-bandgap Traineeship and Mercedes-Benz R&D North America. The experimental validation made use of the Engineering Research Center Shared Facilities supported by the Engineering Research Center Program of the National Science Foundation and DOE and the CURENT Industry Partnership Program.
Keywords
- High frequency injection (HFI)
- Interior permanent magnet synchronous machine (IPMSM)
- Sensorless control