TY - JOUR N2 - The paper presents the problem of sensorless control of a permanent magnets synchronous motor (PMSM) without a damping cage for fan applications. Frequency control was used according to the principle of v/f = const. In order to reduce the power consumption of the drive system, the optimal voltage to the motor frequency characteristics was tested in the laboratory. The experimental studies was performed on a laboratory set of a drive consisting of two coupled PMSM machines, where one machine was supplied by a transistor inverter and the other was a passive load. A new criterion based on minimizing the module of stator current vector was proposed and an optimization algorithm in steady states was tested. The results of laboratory tests confirmed the validity of the applied solution for the fan drive. L1 - http://www.journals.pan.pl/Content/84777/PDF/03_paper.pdf L2 - http://www.journals.pan.pl/Content/84777 PY - 2013 IS - No 2 June EP - 225 DO - 10.2478/aee-2013-0017 KW - energy losses KW - v/f control KW - PMSM A1 - Brock, Stefan A1 - Pajchrowski, Tomasz PB - Polish Academy of Sciences VL - vol. 62 DA - 2013 T1 - Sensorless and energy-efficient PMSM drive for fan application SP - 217 UR - http://www.journals.pan.pl/dlibra/publication/edition/84777 T2 - Archives of Electrical Engineering ER -