A practical approach to HFI based sensorless control of PM-assisted synchronous reluctance machines applied to EVs and HEVs

Thumbnail Image
Files
2017_Sensorless_iecon (1).pdf (942.6 KB)
Identifiers
URI: http://hdl.handle.net/11556/509
DOI: 10.1109/iecon.2017.8216294
Publication date
2017-12-18
Authors
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Citations
Google Scholar
Export
Research Projects
Organizational Units
Journal Issue
Abstract
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.
Description
Keywords
Estimation , Rotors , Torque , Stators , Sensorless control , Hybrid electric vehicles , Delays
Type
conference output
Citation
Trancho, E., E. Ibarra, A. Arias, I. Kortabarria, and P. Prieto. “A Practical Approach to HFI Based Sensorless Control of PM-Assisted Synchronous Reluctance Machines Applied to EVs and HEVs.” IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society (October 2017). doi:10.1109/iecon.2017.8216294.