公开(公告)号：US09685781B2

公开(公告)日：2017-06-20

申请号：US14181161

申请日：2014-02-14

Applicant: Altenergy Power System, Inc.

Inventor： Yuhao Luo ,  Zhimin Ling

IPC: H02J1/00 ,  G01R31/26 ,  H02S10/00 ,  H02J3/38 ,  H02S50/10 ,  H02J1/10 ,  H02S50/00

CPC classification number: H02J1/00 ,  G01R31/26 ,  H02J1/102 ,  H02J3/385 ,  H02S10/00 ,  H02S50/00 ,  H02S50/10 ,  Y02E10/58 ,  Y10T307/549

Abstract: This invention provides a solar photovoltaic system, comprising: a plurality of photovoltaic assemblies, for harvesting solar energy to generate DC currents; a plurality of micro-optimizers having input terminals coupled to the photovoltaic assemblies and having output terminals connected in series with each other, for optimizing output currents and/or output voltages of the photovoltaic assemblies, to generate maximum power; a manager configured to communicate with the plurality of micro-optimizers, for managing operating states of the micro-optimizers; and an inverter coupled to one or more strings of the micro-optimizers, for converting the optimized DC currents into AC currents and outputting the AC currents to a power grid. This invention further provides a method for energy harvest optimization and a method for fault detection of a solar photovoltaic system.