CONTROL METHOD FOR PHOTOVOLTAIC POWER GENERATION SYSTEM, AND PHOTOVOLTAIC POWER GENERATION SYSTEM AND SWITCHING APPARATUS

Abstract

Disclosed in the present application are a control method for a photovoltaic power generation system, and a photovoltaic power generation system and a switching apparatus, which are used for reducing the loss of a photovoltaic power generation system. The switching apparatus comprises a switching unit, a detection unit and a controller. The switching unit comprises a first output terminal, a second output terminal, first input terminals connected in one-to-one correspondence to each first DC/DC converter, and second input terminals connected in one-to-one correspondence to each second DC/DC converter, wherein the first output terminal is connected to an input terminal of a first DC/AC converter, and the second output terminal is connected to an input terminal of a second DC/AC converter. The detection unit is respectively connected to the first DC/AC converter, the second DC/AC converter, the plurality of first DC/DC converters and the plurality of second DC/DC converters. The controller is connected to the detection unit and the switching unit, and the controller determines a switching scheme for reducing the device loss of a photovoltaic power generation system, and controls the switching unit to execute the switching scheme.

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IPC Classification

H02J 3/ 38 A I H02J 3/ 48 A I