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Vol. 114, Issue 3, March 2010, pp. 161-169




Use of the Maximum Torque Sensor to Reduce the Starting Current in the Induction Motor


1Muchlas and 2*Hariyadi SOETEDJO

1Department of Electrical Engineering, University of Ahmad Dahlan,

Jalan Prof. Dr. Soepomo, Yogyakarta 55161, Indonesia

2CIRNOV (Center for Integrated Research and Innovation), University of Ahmad Dahlan,

Jalan Cendana 9a, Semaki, Yogyakarta 55166, Indonesia

*Tel.: +62-81 8468489, fax: +62-274-564604

E-mail: hariyadi@uad.ac.id



Received: 19 December 2009   /Accepted: 22 March 2010   /Published: 29 March 2010


Abstract: Use of the maximum torque sensor has been demonstrated able to improve the standard ramp-up technique in the induction motor circuit system. The induction motor used was of a three-phase squirrel-cage motor controlled using a microcontroller 68HC11. From the simulation done, it has been found that this innovative technique could optimize the performance of motor by introducing low stator current and low power consumption over the standard ramp-up technique.


Keywords: Standard ramp-up, Modified ramp-up, Starting current, Induction motor, Microcontroller


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