公开(公告)号：US09543854B2

公开(公告)日：2017-01-10

申请号：US14160478

申请日：2014-01-21

Applicant: Altenergy Power System, Inc.

Inventor： Yuhao Luo ,  Dongming Zhou

IPC: H02M7/42 ,  H02M7/493 ,  H02M1/00 ,  H02J3/26

CPC classification number: H02M7/42 ,  H02J3/26 ,  H02M7/493 ,  H02M2001/0032 ,  Y02B70/16 ,  Y02E10/56 ,  Y02E40/50 ,  Y10T307/707

Abstract: The invention provides a solar photovoltaic three-phase micro-inverter system comprising a plurality of three-phase micro-inverters. Every three of the three-phase micro-inverters form a group and are coupled to a three-phase AC power grid. Each of the three-phase micro-inverters comprises 3 single-phase inverter circuits, each of the single-phase inverter circuits comprises 2 conversion circuits, and each of the conversion circuits corresponds to one phase of the three-phase AC power grid. AC outputs of the same conversion circuits of the three micro-inverters in one group are coupled to three-phase live wires of the three-phase AC power grid respectively. Accordingly, the invention provides a method for improving conversion efficiency of the solar photovoltaic three-phase micro-inverter system.

Abstract translation: 本发明提供一种包括多个三相微逆变器的太阳能光伏三相微逆变器系统。 三相微逆变器中的每三个组成一组并耦合到三相交流电网。 每个三相微逆变器包括3个单相逆变器电路，每个单相逆变器电路包括2个转换电路，并且每个转换电路对应于三相交流电网的一相。 一组三个微逆变器的相同转换电路的交流输出分别耦合到三相交流电网的三相带电线。 因此，本发明提供了一种提高太阳能光伏三相微逆变器系统的转换效率的方法。