一种用于单相并网多电平光伏微型逆变器的变开关频率多模式控制方案

Single-phase grid-tied microinverters are required to operate over a wide power range in photovoltaic applications. It is desirable to improve the efficiency over the entire power range without extra cost. This article proposes a variable switching frequency (VSF) multimode control scheme to optimize the device losses at each operating point for a single-phase T-type hybrid-bridge inverter. The pr...