Science – Future of Lithuania / Mokslas – Lietuvos Ateitis, Vol 5, No 2 (2013)

Constant Slip Control System of an Asynchronous Motor

Martynas Šapurov
Raimondas Zubavičius
Vytautas Bleizgys


Asynchronous motors are efficiently controlled using the scalar method. Main problems appear when the motor is fully loaded and desired rotation speed is slow. In such cases, the motor slip exceeds the magnitude of the nominal slip, causing the increase in stator current. The constant slip method was designed to control hardly loaded asynchronous motor. In this particular situation, the constant slip method provides a better efficiency than the scalar method. The magnitude of the motor current refers to the slip: the less is the slip, the less is the magnitude. It is impossible to find the optimal slip for minimization of current with the help of a model. Therefore, the nominal slip value was used as optimal.

Article in Lithuanian

Article in: Lithuanian

Article published: 2013-05-24

Keyword(s): asynchronous motor; slip; frequency converter; inverter; control system

DOI: 10.3846/mla.2013.26

Full Text: PDF pdf

Science – Future of Lithuania / Mokslas – Lietuvos Ateitis ISSN 2029-2341, eISSN 2029-2252
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