Abstract

VIEGO FELIPE, Percy Rafael; GOMEZ SARDUY, Julio Rafael  and  QUISPE OQUENA, Enrique Ciro. Synchronous Reluctance Motors Controlled by Variable Frequency Converters: An Application to Save Energy. Energética [online]. 2015, vol.36, n.1, pp. 72-82. ISSN 1815-5901.

A study on applications of synchronous reluctance motor (SynRM) controlled by variable frequency drives (VFD) for energy saving is presented. A comparison between the basic construction elements of the SynRM and the squirrel cage induction motor (IM) is carried out, evaluating advantages and disadvantages. A nearly complete elimination of rotor losses is a significant asset of the SynRM. An experimental comparison showed that at the same torque, the SynRM presents a higher efficiency than the IM; and that at the same temperature rise, more power is obtained with the same IEC frame for both motor types. Comparing data from a manufacturer, the advantages of using, with the same VFD and for centrifugal loads, a higher efficiency class SynRM than that of a lower efficiency IM was demonstrated. An economical study using discount techniques, made evident an attractive pay back when operating all year around.

Keywords : variable frequency drives; economical analysis using discount techniques; experimental comparison of electric motors; energy efficiency; synchronous reluctance motor.

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