Three Phase Variable Frequecy Drive Using Arduino uno With Soft Start

Three Phase Variable Frequecy Drive Using Arduino Uno With Soft Start

By using this technique initial high current and torque controlled during the starting of an induction motor and after getting desired speed induction motor run at full speed. This proposed work is an extension to new engineering design technique, a modern and state of the art technique which will run an induction motor smoothly.An induction motor will run only because of the phase difference between the stator’s magnetic field and rotor’s magnetic field. If phase difference is same induction motor will not run. So phase difference is necessary and because of this difference, rotor’s magnetic field tries to catch stator’s magnetic field and draws current. When the induction motor runs at full speed, current increases to a high value which in turn increases the value of torque. As a result of initial high current, the windings of induction motor damaged and cause overheating.

So to prevent induction motor from damage, motor soft starter is needed. A soft starter is a device that reduces the torque applied to the induction motor. There are different techniques of soft starters and every technique has some limitations. In proposed technique solid state soft starter method is used to start induction motor smoothly.

Three Phase Variable Frequecy Drive Using Arduino uno With Soft Start