An On-Line Harmonics Elimination PWM Scheme for Three-phase Voltage Source Inverters

nature and has been demonstrated to be accurately solved Abstract- An on-line harmonic elimination PWM using numerical iteration [ 11. (HEPWM) scheme for three-phase voltage source inverters is proposed. It is based on curve fitting method derived from the trajectories of the exact (off-line) HEPWM angles. The main advantage of the technique is its fast and efficient realization using a microprocessor. An outline to obtain the switching angles is presented. The method is proven by experimental results. Keytuords-PWM, harmonic elimination tecliiuque, Three-phase Iiivereter I