公开(公告)号：US20230370020A1

公开(公告)日：2023-11-16

申请号：US17748970

申请日：2022-05-19

申请人： Maxar Space LLC

发明人： Jason Esquivias ,  Jeffrey David McCallum

IPC分类号： H02S50/00 ,  H02J3/38 ,  H02S10/40 ,  B64G1/44

CPC分类号： H02S50/00 ,  H02J3/381 ,  H02S10/40 ,  B64G1/443 ,  H02J2300/24

摘要： Technology is disclosed herein for reverse current protection for a photovoltaic module string. An apparatus has a switch connected between each respective PV module string and a power bus. A control circuit closes a set of the switches to connect a set of the PV module strings to the power bus to transfer power from the set of the photovoltaic PV module strings to the power bus. The control circuit determines whether a reverse current flows in the direction from the power bus to any of the PV module strings. The control circuit maintains the switch associated with a particular PV module string in an open state to prevent reverse current from flowing in the particular PV module string responsive to a determination that a reverse current flows in the particular PV module string when the particular PV module string is connected to the power bus.

公开(公告)号：US20230369876A1

公开(公告)日：2023-11-16

申请号：US17744437

申请日：2022-05-13

申请人： Maxar Space LLC

发明人： Jason Esquivias ,  Lee Charles Rotlisberger ,  Jeffrey David McCallum

IPC分类号： H02J7/00 ,  H02J3/38 ,  B64G1/66

CPC分类号： H02J7/007182 ,  H02J3/381 ,  H02J7/00032 ,  H02J7/0047 ,  B64G1/66 ,  H02J2310/44 ,  H02J2300/26

摘要： Technology is disclosed herein for a power control and distribution unit (PCDU) of a spacecraft that has a microcontroller to control battery charging from solar arrays. Using a microcontroller within the PCDU reduces the complexity of the PCDU. The microcontroller may be programmable and reprogrammable, which allows the charging of the battery to be adapted to various conditions. For example, the microcontroller can be programmed in accordance with the mission to optimize battery charging for that mission.

公开(公告)号：US11799420B1

公开(公告)日：2023-10-24

申请号：US17748970

申请日：2022-05-19

申请人： Maxar Space LLC

发明人： Jason Esquivias ,  Jeffrey David McCallum

IPC分类号： H02S50/00 ,  H02J3/38 ,  B64G1/44 ,  H02S10/40

CPC分类号： H02S50/00 ,  B64G1/443 ,  H02J3/381 ,  H02S10/40 ,  H02J2300/24

摘要： Technology is disclosed herein for reverse current protection for a photovoltaic module string. An apparatus has a switch connected between each respective PV module string and a power bus. A control circuit closes a set of the switches to connect a set of the PV module strings to the power bus to transfer power from the set of the photovoltaic PV module strings to the power bus. The control circuit determines whether a reverse current flows in the direction from the power bus to any of the PV module strings. The control circuit maintains the switch associated with a particular PV module string in an open state to prevent reverse current from flowing in the particular PV module string responsive to a determination that a reverse current flows in the particular PV module string when the particular PV module string is connected to the power bus.