Switching harmonic compensation for non resonant DC/AC inverters

Nonresonant inverters are sensitive to load changes but they basically produce a square wave and, if a sine wave is required, a lot of expensive filtering is necessary. In this paper, a model of a DC/AC high power inverter is proposed with low frequency switching and harmonic compensation to reduce these filtering circuits. This inverter adds several square waves of different frequencies and amplitudes in a similar way to the Fourier series but with a different function family