Modulation for AC-to-AC resonant link converters with active filtering

Modulation methods for AC-to-AC pulse-modulated series-resonant power converters are analyzed. A novel control approach based on space vector dynamical equations is suggested. The obtained equations prescribe the dynamics of the complete power converter including its filters. The derived modulator base can overcome the drawbacks of pulse modulation techniques. The sliding mode control is considered to control the power factor of the pulse-modulated power converter. The suggested modulation mechanism and philosophy is generally applicable for the entire class of the pulse-modulated soft-switching power converters