A co-simulation of random pulse width modulation generation

In this paper presents a Novel co-simulation of random pulse width modulation generation for three phase inverter drive by using Spartan3E500 FPGA device, in order to disperse the acoustic noise spectra of an induction motor drive is presented. This scheme is randomized by selecting the triangle arbitrarily among the two triangles. The arbitration selection is based 8 bit linear feedback shift register. The least bit of the register output decide the winning triangle which is to compare with sine reference wave to generate pulses. It presents the output fundamental voltage, THD and harmonic spread factor for various modulation indexes. In this proposed work done by using novel co-simulation methodology i.e combined simulation of Modelsim6.3f and Matlab7.10 which will reduce the design implementation time. In addition, FPGA synthesis results has been provided.