This paper presents a novel circuit topology of a high
efficiency single-phase sinewave PV power conditioner. This
power conditioner is composed of time-sharing sinewave
absolute pulse width modulated boost chopper with a bypass
diode in the first power processing stage and time-sharing
sinewave pulse width modulated full-bridge inverter in the
second power processing stage operated by time-sharing dual
mode pulse pattern control scheme. Its unique operating
principle of two power processing stage with time-sharing dual
mode sinewave modulation scheme is described with a design
example. This paper also proposes a sinewave tracking voltage
controlled soft switching PWM boost chopper with a passive
auxiliary edge-resonant snubber. The new conceptual operating
principle of this novel single-phase sinewave power conditioner
related to solar photovoltaic generation system is presented and
discussed through the experimental results.