Speed Control of Induction Motor Using Variable Frequency Driver (VFD) Method Based On Arduino Nano

Abstract

This research aims to control the speed of an induction motor by exploiting changes in the fundamental frequency. The inverter as the main part of the variable frequency driver (VSD) uses the IRFZ44n Mosfet as a power switch with a full bridge topology to convert the DC source to AC power. Fundamental frequency manipulation takes place during the conversion process. The method used is to change the variable fundamental frequency of the SPWM signal generated by the Arduino nano to control the power switch. Experiments are carried out based on two stages, namely simulation, and experiment. The simulation is performed using the Pspice A/D Lite software to take time sample data (HIGH and LOW) at each frequency change of 13Hz, 25Hz, 38Hz, and 50Hz, then the sample data is input on the Arduino nano as an SPWM signal generator to control the power switch. The results of the variable frequency drive test are the frequencies generated to drive the induction motor at 12.50 Hz, 24.04 Hz, 35.71 Hz, and 48.54 Hz at motor speeds from 227.7 to 1359.6 rpm.