Title :
Sensorless control of a BLDC PM motor based on I-f starting and back-EMF zero-crossing detection
Author :
Ungurean, A. ; Coroban-Schramel, V. ; Boldea, I.
Author_Institution :
Dept. of Electr. Eng., Politeh. Univ. of Timisoara, Timişoara, Romania
Abstract :
The present paper introduces a novel sensorless control of brushless dc permanent magnet (BLDC-PM) motor based on I-f principle for starting (from any initial position) with seamless commutation to BEMF zero crossing detection above a certain speed. The starting method assures a fast response and the criteria for switching to speed sensorless control introduces short transients. This way, for general drives, even with notable load torque at start, the motor will start, although after a short hesitation depending on the initial position of the rotor. Several scenarios were simulated in Matlab/Simulink (with Plecs Library) to confirm the proposed control strategy. Experiments for I-f starting are ongoing.
Keywords :
brushless DC motors; permanent magnet motors; sensorless machine control; BLDC PM motor; I-f starting; back EMF zero crossing detection; brushless dc permanent magnet; seamless commutation; sensorless control; Brushless DC motors; Brushless motors; Commutation; DC motors; Pulse width modulation; Reluctance motors; Rotors; Sensorless control; Synchronous motors; Voltage; BLDC; Back-EMF; I-f; sensorless;
Conference_Titel :
Optimization of Electrical and Electronic Equipment (OPTIM), 2010 12th International Conference on
Conference_Location :
Basov
Print_ISBN :
978-1-4244-7019-8
DOI :
10.1109/OPTIM.2010.5510578