Title :
Stable V/f control system with unity power factor for PMSM drives
Author :
Andreescu, Gheorghe-Daniel ; Coman, Cristina-Elena ; Moldovan, Ana ; Boldea, Ion
Author_Institution :
Dept. of Autom. & Appl. Inf., Politeh. Univ. of Timisoara, Timisoara, Romania
Abstract :
This paper develops a scalar V/f control system for permanent magnet synchronous motor (PMSM) drives with two stabilizing feedback corrections: i) a voltage-vector speed correction using active power variation, in action only in transient states, and ii) a voltage amplitude correction based on unity power-factor regulation loop, employing reactive power. Motor/generator operating mode is allowed using the active power sign information. The proposed solution, inherent for sensorless control, is simple, requires reduced computation time, thus it is competitive for very-high variable speed PMSM drives like fans, pumps, micro gas-turbine generators, etc. Significant simulation results prove good performance for the proposed control structure in steady and transient states, for fast speed references and step rated load torque.
Keywords :
permanent magnet motors; power factor correction; sensorless machine control; synchronous motor drives; variable speed drives; voltage control; active power sign information; active power variation; control structure; fans; fast speed references; microgas-turbine generators; motor-generator operating mode; permanent magnet synchronous motor drives; pumps; reactive power; sensorless machine control; stabilizing feedback corrections; stable V/f control system; step rated load torque; transient states; unity power-factor regulation loop; very-high variable speed PMSM drives; voltage amplitude correction; voltage-vector speed correction; Generators; Reactive power; Rotors; Torque; Transient analysis; Vectors; Voltage control; V/f control; active/reactive power; permanent magnet synchronous motor (PMSM); power factor; scalar control;
Conference_Titel :
Optimization of Electrical and Electronic Equipment (OPTIM), 2012 13th International Conference on
Conference_Location :
Brasov
Print_ISBN :
978-1-4673-1650-7
Electronic_ISBN :
1842-0133
DOI :
10.1109/OPTIM.2012.6231937