Aplikasi Kendali Fuzzy Logic Untuk Pengaturan Kecepatan

Thiang Thiang • Resmana Resmana • Wahyudi Wahyudi
Journal article Jurnal Teknik Elektro Universitas Kristen Petra • March 2001 Indonesia

Abstract

This paper present the application of fuzyy logic control for universal motor speed control. Fuzzy logic control is implemented on a personal computer, while the program is made in Pascal. The speed control is done by adjusting motor voltage and using Pulse Width Modulation (PWM) Method. The loading on the motor is executed mechanical braking. The system feedback is a signal frequency from tacho, which is, then changed into voltage for computer input through ADC. Fuzzy logic system applies two crisps of input: error and error chage of the motor speed; and an output crisp, i.e. voltage change. The dufuzzification methods used are mean of maxima and center of area. The numbers of rules vary based on the numbers of the label used. The system response is displayed by graphic of the motor speed toward time. The testing result showed that the membership functions in triangle and trapezoid forms did not contribute significant influence to the system response; between the two methods of defuzzification, the center area was better than the mean of maxima; and the system response will be much bettter if more membership functions were used.

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Jurnal Teknik Elektro Universitas Kristen Petra

Jurnal Teknik Elektro Universitas Kristen Petra is published biannually, in May and September, by... see more