In an increasingly advanced technological developments, the induction motor can be used in various industries, including in the process of grinding the limestone. In a small scale, induction motor used is a single phase induction motor. To optimize the work of the induction motor in the process of grinding the limestone, can be used fuzzy logic control method to regulate the speed of the motor used to drive the grinding machines. Where the use of fuzzy logic control aims to regulate the motor speed in accordance with the existing load on the motor. In controlling the speed of single phase induction motor, an inverter is used to set the frequency on the load while the output voltage is kept constant at 220 volts. For a 50 Hz motor frequency, motor rotation is achieved close to maximum. With this setting in case of loading, speed of induction motors will drop. Fuzzy logic control will adjust the motor speed when burdened for faster or slower according to the nominal speed at the initial velocity set point.
Key Words : fuzzy logic control, Inverter, Induction Motors, Frequency Setting
