Physical level IC implementation for speed control of three phase induction motors

This paper presents the design and physical layout implementation of constant v/f method for speed control of an AC induction motor using VLSI 90nm technology. This method falls under the category of VVVF drives, that is based on Sinusoidal pulse width modulation technique (SPWM). SPWM plays an important role in the minimization of lower order harmonics and switching power losses in the power converters used in controllers. The entire module is constructed precisely using sub modules such as Interface module, PWM, Oscillator and Amplitude module. These modules are synthesized using design vision tool from Synopsys Inc and XST tool from Xilinx Inc. The HDL code is programmed using VHDL language and area & consumption of power parameters in the sub modules are identified. The physical level IC implementation of the controller is compiled using IC compilation tool from Synopsys Inc.