公开(公告)号：US20220216918A1

公开(公告)日：2022-07-07

申请号：US17610126

申请日：2021-03-16

申请人： Sungrow Power Supply Co., Ltd.

发明人： Yuqing Cui ,  Jiacai Zhuang ,  Fushuai Zhuang ,  Yuan Zhuang ,  Jun Xu

IPC分类号： H04B10/2575 ,  H04B10/40

摘要： A method for controlling data transmission and reception and an application system thereof are provided. In the method, the peer-to-peer communication system is initialized to set each communication unit in the peer-to-peer communication system to be in a data receiving state. A communication host controls, according to a communication status of the peer-to-peer communication system, a controlled electrical connection path between the communication host and a communication interface to the communication transmission path, to work in a mode allowing data transmission from the communication slave to a communication host side of the controlled electrical connection path, or a mode allowing data transmission from the communication host side of the controlled electrical connection path to the communication slave.

公开(公告)号：US10355618B2

公开(公告)日：2019-07-16

申请号：US15950666

申请日：2018-04-11

申请人： SUNGROW POWER SUPPLY CO., LTD.

发明人： Jiacai Zhuang ,  Yuqing Cui ,  Deyong Zhao ,  Xiaohui Luo ,  Chaoxuan Zhang ,  Jun Xu ,  Yilei Gu ,  Xinyu Wang

IPC分类号： H02M7/487 ,  H02M1/00 ,  H02M1/08 ,  H02M1/38

摘要： An ANPC inverter, a zero-crossing switching method and a zero-crossing switching apparatus of the ANPC inverter are provided. The method includes: controlling switch states of switch devices in a bridge leg to change according to a preset logic when zero-crossing switching occurs in an output voltage instruction of the bridge leg, so as to prevent overvoltage in the switch device in the bridge leg. The preset logic includes switching among a sequence of switch state combinations. Switch state combinations of the switch devices before and after the zero-crossing switching occurs are defined as the first and second switch state combinations of the sequence. The second to the penultimate switch state combinations are all safe switch state combinations selected in advance, in each of which a maximum voltage borne by the switch devices in the bridge leg is clamped to a safe limit value.