A New Generation VLSI Approach for V/F Control of Three-Phase Induction Motor

AC induction motor (ACIM) is the workhorse of industrial and residential motor applications due to its durability, robustness and reliability. In today’s energy conscious world, driving and controlling the induction motor efficiently are prime concerns. In the proposed scheme the v/f control of 3-phase induction motor uses the advanced VLSI technology that is a unique VLSI chip called Digital Signal Controller (DSC), which has features of both microcontroller and DSP. In this work, a v/f controlled three phase induction motor controller is developed using dsPIC30F2010 chip. The output voltage is filtered using c-type output filter. A 1HP, 3-phase, 415V, 50Hz, 1440rpm, induction motor is used as load for the inverter. Digital Storage Oscilloscope Textronix TDS2024B is used to record and analyze the various waveforms. The experimental results for v/f control of 3-PH induction motor using dsPIC30F2010 chip clearly shows constant volts per hertz and stable inverter line to line output voltage.