Invention Grant
- 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.: US12047033B2Publication Date: 2024-07-23
- 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
- Agency: Fredrikson & Byron, P.A.
- Main IPC: H02S20/32
- IPC: H02S20/32 ; H02S40/38 ; H02S50/10 ; B62D5/00 ; F24S25/12 ; F24S30/425

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
- US20230170841A1 SYSTEMS AND METHODS FOR TRACKER-LEVEL PROTECTION Public/Granted day:2023-06-01
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