公开(公告)号：US20240275172A1

公开(公告)日：2024-08-15

申请号：US18568820

申请日：2021-07-08

Applicant: ALTENERGY POWER SYSTEM INC.

Inventor： Yuhao LUO ,  Dongming ZHOU ,  Fei SHEN ,  Xuan ZHU ,  Xiao LU ,  Guowei MIAO ,  Wenwei LI

IPC: H02J3/38 ,  H02J3/00

CPC classification number: H02J3/38 ,  H02J3/001 ,  H02J3/007 ,  H02J2300/24

Abstract: A method and an apparatus for controlling a shutoff device, and a shutoff device. The method is applied to a processor of the shutoff device. The method includes: determining whether a heartbeat signal is received continuously during a first preset period; if so, controlling the N main switching transistors to be turned on, and determining whether the heartbeat signal is not received continuously during a second preset period; and if so, controlling the N main switching transistors to be turned off, and controlling the release circuit to be turned on to release a voltage on the bus. A release circuit is controlled to release voltage on the bus to the ground, thereby rapidly reducing the voltage on the bus, avoiding person danger and safety accidents caused by the long-term presence of the direct current high voltage on the bus, and improving the safety and reliability of a photovoltaic system.

公开(公告)号：US20250130280A1

公开(公告)日：2025-04-24

申请号：US18686891

申请日：2022-01-29

Applicant: ALTENERGY POWER SYSTEM INC.

Inventor： Yuhao LUO ,  Dongming ZHOU ,  Xuan ZHU ,  Wenwei LI ,  Houkun TAN ,  Zhenhuan ZHANG ,  Guowei MIAO

IPC: G01R31/327 ,  H02J3/38 ,  H02M1/36 ,  H02S50/00

Abstract: A method for testing and controlling a rapid shutdown device, and a tester are provided. The method includes: transmitting a heartbeat signal of first signal strength to a target rapid shutdown device in a target rapid shutdown module to switch the target rapid shutdown device on and testing the target rapid shutdown device using a preset testing program t, on receipt of a rapid shutdown device testing request, where all rapid shutdown devices in the target rapid shutdown module are previously off; and transmitting a heartbeat signal of second signal strength to the target rapid shutdown module to switch the rapid shutdown devices on or off, on receipt of a rapid shutdown device control request, where the first signal strength is lower than the second signal strength. The rapid shutdown devices can be tested and controlled efficiently, thereby effectively avoiding safety hazards and thus protecting workers.