RT Conference Proceedings T1 A practical approach to HFI based sensorless control of PM-assisted synchronous reluctance machines applied to EVs and HEVs A1 Trancho, E. A1 Ibarra, E. A1 Arias, A. A1 Kortabarria, I. A1 Prieto, P. AB Sensorless control is a promising alternative for controlling Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) propulsion systems without the need of complex devices, such as resolvers or encoders. As the usage of a physical sensor is avoided, this allows significant cost reductions of the drive, and the reliability of the system is also improved. EVs require an operation range from standstill to high speeds. At low speeds, the back-EMF of the electric machine is low, and signal injection techniques are required in order to estimate the position and speed of the machine. This paper presents practical implementation details of the High Frequency Injection (HFI) technique, giving special attention to signal processing, offset compensation due to filtering delays and robust speed estimation. The approach is validated in an automotive Permanent Magnet Assisted Synchronous Reluctance Machine (PM-assisted SynRM) of 51 kW. PB IEEE SN 9781538611272 YR 2017 FD 2017-12-18 LA eng NO Trancho , E , Ibarra , E , Arias , A , Kortabarria , I & Prieto , P 2017 , A practical approach to HFI based sensorless control of PM-assisted synchronous reluctance machines applied to EVs and HEVs . in unknown . 2017-January , IEEE , pp. 1735-1740 , 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 , Beijing , China , 29/10/17 . https://doi.org/10.1109/iecon.2017.8216294 NO conference NO Publisher Copyright: © 2017 IEEE. DS TECNALIA Publications RD 18 jul 2024