公开(公告)号：US20240339921A1

公开(公告)日：2024-10-10

申请号：US18579630

申请日：2022-04-24

申请人： Sungrow Power Supply Co., Ltd.

发明人： Shuai Sun ,  Anran He ,  Peng Chen ,  Zhicheng Wang ,  Xuebing Chen

IPC分类号： H02M1/00 ,  H02S40/32

CPC分类号： H02M1/0074 ,  H02M1/0077 ,  H02S40/32

摘要： A photovoltaic system and a control method. The photovoltaic system includes a master DC/DC converter; a slave DC/DC converter; a master DC/AC converter; and a slave DC/AC converter. The master DC/AC converter is configured to send a current instruction value and an input voltage of the master DC/AC converter to the slave DC/AC converter; and the slave DC/AC converter is configured to control an output current, based on an input voltage of the slave DC/AC converter, the current instruction value, and the input voltage of the master DC/AC converter, so that a current through the N wire is less than a preset current.