Invention Publication
- Patent Title: SYSTEMS AND METHODS FOR TRACKER-LEVEL PROTECTION
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Application No.: US18072335Application Date: 2022-11-30
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Publication No.: US20230170841A1Publication Date: 2023-06-01
- Inventor: Chen Li , Yang Liu , Alexander W. AU
- Applicant: Nextracker LLC
- Applicant Address: US CA Fremont
- Assignee: Nextracker LLC
- Current Assignee: Nextracker LLC
- Current Assignee Address: US CA Fremont
- Main IPC: H02S20/32
- IPC: H02S20/32 ; H02S40/38 ; H02S50/10

Abstract:
A solar tracking system includes a solar array, a support structure configured to support the solar array, a driveshaft coupled to the support structure, a base configured to rotatably support the driveshaft, and an articulation system coupled to the driveshaft and configured to articulate the driveshaft relative to the base. The articulation system includes a gearbox coupled to the driveshaft. The solar tracking system also includes a motor mechanically operably coupled to the gearbox to cause the driveshaft to rotate, and a controller that determines a fault caused by the winding up of the driveshaft, and, in response to determining the fault, shorting the windings of the motor and/or providing power, which is generated by the motor when the unwinding driveshaft drives the rotation of the motor, to a load, such as an energy storage device, a resistive load, and/or a heating element.
Public/Granted literature
- US12047033B2 Systems and methods for tracker-level protection Public/Granted day:2024-07-23
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