Title :
An online identification method for both stator resistance and back-EMF coefficient of PMSMs without rotational transducers
Author :
Lee, Kyu-Wang ; Jung, Doo-Hee ; Ha, In-Joong
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea
fDate :
4/1/2004 12:00:00 AM
Abstract :
This letter describes an effective online method for identifying both the stator resistance and the back-electromotive-force (EMF) coefficient of a permanent-magnet synchronous motor (PMSM) without rotational transducers. Using only the information of stator currents and voltages, it can provide fairly good identification accuracy under various load conditions and can be easily incorporated into most sensorless speed control schemes proposed in the prior literature.
Keywords :
electric potential; electric resistance; permanent magnet motors; stators; synchronous motors; velocity control; back-EMF coefficient; online identification method; permanent-magnet synchronous motor; sensorless speed control scheme; stator current; stator resistance; stator voltage; Electric resistance; Equations; Rotors; Sensorless control; Stators; Steady-state; Synchronous motors; Temperature sensors; Transducers; Velocity control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2004.825280
