Regular-sampled harmonic elimination PWM control of single-phase two-level inverters

A new harmonic eliminatiordminimisation pulse width modulation strategy for single-phase inverters is presented. The two-level harmonic elimination pulse width modulation strategy operates onhne and in real-time and closely approximates the switching angles produced by the offline exact harmonic elimination pulse width modulation technique. The new technique, based on the wellknown regular-sampled approach, is suitable for implementation using a low-cost digital signal processor. Theoretical and experimental results are presented to demonstrate and confirm the validity of the new technique.