Title :
Efficiency Enhancement of Permanent-Magnet Synchronous Motor Drives by Online Loss Minimization Approaches
Author :
Cavallaro, Calogero ; Tommaso, Antonino Oscar Di ; Miceli, Rosario ; Raciti, Angelo ; Galluzzo, Giuseppe Ricco ; Trapanese, Marco
Author_Institution :
Dept. of Electr., Univ. of Catania, Italy
Abstract :
In this paper, a new loss minimization control algorithm for inverter-fed permanent-magnet synchronous motors (PMSMs), which allows for the reduction of the power losses of the electric drive without penalty on its dynamic performance, is analyzed, experimentally realized, and validated. In particular, after a brief recounting of two loss minimization control strategies, namely, the “search control” and the “loss-model control,” both a new modified dynamic model of the PMSM (which takes into account the iron losses) and an innovative “loss-model” control strategy are presented. Experimental tests on a specific PMSM drive employing the proposed loss minimization algorithm have been performed, aiming to validate the actual implementation. The main results of these tests confirm that the dynamic performance of the drive is maintained, and in small motors enhancement up to 3.5% of the efficiency can be reached in comparison with the PMSM drive equipped with a more traditional control strategy.
Keywords :
losses; machine control; minimisation; permanent magnet motors; synchronous motor drives; variable speed drives; efficiency enhancement; loss minimization control; permanent magnet synchronous motors; power losses; synchronous motor drives; variable speed motor drives; Electron traps; Friction; Iron; Magnetic flux; Minimization methods; Performance loss; Rotors; Synchronous motors; Testing; Torque; Control systems; efficiency improvement; permanent-magnet synchronous motor (PMSM); variable-speed motor drives;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2005.851595