公开(公告)号：US20220271515A1

公开(公告)日：2022-08-25

申请号：US17665340

申请日：2022-02-04

Applicant: Sungrow Power Supply Co., Ltd.

Inventor： Hao Zheng ,  Qiyao Zhu ,  Longlin Sun

IPC: H02B1/56 ,  H02B1/28 ,  H02B1/30

Abstract: A power cabinet, which includes a cabinet body and an electric reactor, a power unit and a switch arranged in the interior of the cabinet body. In the interior of the cabinet body of the power cabinet, the electric reactor is arranged close to a first side in the interior of the cabinet body, and the power unit and the switch are arranged on a second side in the interior of the cabinet body, opposite to the first side. Moreover, these electric reactor, the power unit and the switch are all located in a lower space. In addition, in the power cabinet, the electric reactor and power unit dissipate heat in different chambers from the switch dissipates heat.

公开(公告)号：US12132299B2

公开(公告)日：2024-10-29

申请号：US17665340

申请日：2022-02-04

Applicant: Sungrow Power Supply Co., Ltd.

Inventor： Hao Zheng ,  Qiyao Zhu ,  Longlin Sun

IPC: H02B1/56 ,  H02B1/28 ,  H02B1/30 ,  H02S40/38

CPC classification number: H02B1/565 ,  H02B1/28 ,  H02B1/306 ,  H02S40/38

Abstract: A power cabinet, which includes a cabinet body and an electric reactor, a power unit and a switch arranged in the interior of the cabinet body. In the interior of the cabinet body of the power cabinet, the electric reactor is arranged close to a first side in the interior of the cabinet body, and the power unit and the switch are arranged on a second side in the interior of the cabinet body, opposite to the first side. Moreover, these electric reactor, the power unit and the switch are all located in a lower space. In addition, in the power cabinet, the electric reactor and power unit dissipate heat in different chambers from the switch dissipates heat.

公开(公告)号：US11387643B2

公开(公告)日：2022-07-12

申请号：US16959982

申请日：2019-12-31

Applicant: SUNGROW POWER SUPPLY CO., LTD.

Inventor： Cheng Liang ,  Nianan Pan ,  Zhicheng Wang ,  Lin Cheng ,  Longlin Sun ,  Jigui Feng

IPC: H02H7/122

Abstract: A method, a device, and a system for protecting parallel-connected topology units are provided. A target signal transmitted via the signal synchronization line is obtained, and the target signal is sent to other controllers based on a type of the target signal. If the target signal is a carrier synchronization signal, the current power module is controlled to perform carrier synchronization and to be in a working mode. If the target signal is a power module fault signal, the current power module is controlled to be in a shutdown mode. The signal synchronization lines between the parallel-connected topology units are shared in a time-sharing manner, where the carrier synchronization signal is transmitted if the power module works normally, and the power module fault signal is transmitted if the power module is faulty. The topology units monitor the transmitted target signal in real time for fast synchronous protection.

公开(公告)号：US10103544B2

公开(公告)日：2018-10-16

申请号：US15415509

申请日：2017-01-25

Applicant: Sungrow Power Supply Co., Ltd.

Inventor： Lin Cheng ,  Nianan Pan ,  Lei Tao ,  Longlin Sun

IPC: H02J3/00 ,  H01H47/00 ,  H02J3/40 ,  H02J3/38

Abstract: Disclosed are a medium and high voltage grid-connected power generation system, a medium and high voltage grid-connected system, and a control circuitry thereof. The voltage of the medium and high voltage power grid is collected through the control circuitry. A power grid amplitude and a power grid phase synchronization signal are obtained, and then sent to an inverter unit through a communication line.