Abstract
This paper presents a method for the sensorless control in full speed range for an interior permanent-magnet synchronous motor (IPM). At standstill and very low speed region, high frequency (HF) injection technique is used to detect the rotor initial position. A hybrid observer is applied to realize a smooth transition from low to high speed. When the rotor speed goes up to a certain value where back EMF can provide adequate information, a back EMF observer will dominate. The hybrid observer is verified through simulation and experimental results using a three-phase 1-kW IPM motor drive.
| Original language | American English |
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| State | Published - Jul 1 2014 |
| Event | IEEE Xplore - Duration: May 24 2016 → … |
Conference
| Conference | IEEE Xplore |
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| Period | 5/24/16 → … |
Keywords
- Observers
- Rotors
- Sensorless control
- Hafnium
- Permanent magnet motors
- Position measurement
Disciplines
- Electrical and Computer Engineering