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公开(公告)号：US20220085753A1
公开(公告)日：2022-03-17
申请号：US17475011
申请日：2021-09-14
Applicant: NEXTracker Inc.
Inventor： Phani Kumar , Abhimanyu Sable , Jitendra Morankar , Alexander W. AU , David Kresse
Abstract: A pier for a solar tracking system includes a bearing housing assembly, a frame, the frame defining an A-profile having a pair of legs and a crown at a center portion thereof, and a mounting bracket, the mounting bracket coupled to a portion of the crown of the frame at a first portion thereof and coupled to a portion of the bearing housing assembly at a second portion thereof.
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公开(公告)号：US11196381B2
公开(公告)日：2021-12-07
申请号：US17187067
申请日：2021-02-26
Applicant: NEXTracker Inc.
Inventor： Jérôme Arliaud , Adrien Crucifix , Philippe Blanc
Abstract: A method for controlling the orientation of a single-axis solar tracker orientable about an axis of rotation, including observing the evolution over time of the cloud coverage above the solar tracker; determining the evolution over time of an optimum inclination angle of the solar tracker substantially corresponding to a maximum of solar radiation on the solar tracker, depending on the observed cloud coverage; predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage; calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage; servo-controlling the orientation of the solar tracker according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle.
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公开(公告)号：US11159120B2
公开(公告)日：2021-10-26
申请号：US16124773
申请日：2018-09-07
Applicant: NEXTracker Inc.
Inventor： David E. Kresse , Samuel Heller
IPC: H02S20/32 , F16H57/038 , F16H37/04 , H02S20/10 , F16H48/08
Abstract: A solar tracking system is provided and includes a solar array, a support structure configured to support the solar array, a base configured to rotatably support the support structure, and an articulation system configured to articulate the support structure relative to the base. The articulation system includes a gearbox that is coupled to the support structure and an actuator that is configured to extend and retract. The actuator includes a first end portion and a second, opposite end portion, wherein the first end portion is rotatably coupled to the base and the second end portion is coupled to the gearbox. Extension of the actuator causes the support structure to rotate about the base in a first direction and retraction of the actuator causes the support structure to rotate about the based in a second, opposite direction.
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公开(公告)号：US20210296904A1
公开(公告)日：2021-09-23
申请号：US17202331
申请日：2021-03-15
Applicant: NEXTracker Inc.
Inventor： Yang Liu
IPC: H02J3/38 , G05B19/045 , H02J7/00
Abstract: A multi-power distributed storage system including a first power source; a second power source electrically connected to a common bus with the first power source; a single input port inverter electrically connected to the common bus. The system including a controller configured to communicate with at least the second power source, and the single input port inverter. The second power source including a plurality of battery banks and a plurality of bi-directional DC/DC converters configured to charge and discharge the plurality of battery banks and provide DC to the single input port inverter.
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公开(公告)号：US20210288608A1
公开(公告)日：2021-09-16
申请号：US17157989
申请日：2021-01-25
Applicant: NEXTracker Inc.
Inventor： Jérôme ARLIAUD , Adrien CRUCIFIX , Philippe Blanc
Abstract: A method for controlling the orientation of a single-axis solar tracker (1) orientable about an axis of rotation (A), said method implementing the following steps: a) observing the evolution over time of the cloud coverage above the solar tracker (1); b) determining the evolution over time of an optimum inclination angle of the solar tracker (1) substantially corresponding to a maximum of solar radiation on the solar tracker (1), depending on the observed cloud coverage; (c) predicting the future evolution of the cloud coverage based on the observed prior evolution of the cloud coverage; d) calculating the future evolution of the optimum inclination angle according to the prediction of the future evolution of the cloud coverage; e) servo-controlling the orientation of the solar tracker (1) according to the prior evolution of the optimum inclination angle and depending on the future evolution of the optimum inclination angle. The present invention finds application in the field of solar trackers.
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Patent Agency Ranking
公开(公告)号：US20210273602A1
公开(公告)日：2021-09-02
申请号：US16805798
申请日：2020-03-01
Applicant: NEXTracker Inc.
Inventor： Fei Gu , Yang Liu , Venkata Rahul Abbaraju , Eric Martinez
Abstract: Split-cell and multi-panel photovoltaic backtracking control systems and methods allow for increased total power generation during low sun elevation conditions by shading a percentage of panel modules, thereby allowing for a lower angle of incidence on unshaded modules. The control systems and methods involve determining a sun elevation angle, a traditional backtracking angle, a split-cell or multi-panel backtracking angle, a single-cell or single-panel relative light transmission (RLT) based on the single-cell or single-panel backtracking angle, and a split-cell or multi-panel RLT based on the split-cell or multi-panel backtracking angle. If twice the single-cell or single-panel RLT is greater than the split-cell or multi-panel RLT, the split-cell or multi-panel backtracking angle is used; otherwise, the single-cell or single-panel backtracking angle is used. The control systems and methods may further involve determining a diffuse fraction index (DFI) and, if the DFI is greater than a DFI limit, using a DFI tracking angle.
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公开(公告)号：US11101768B2
公开(公告)日：2021-08-24
申请号：US16128022
申请日：2018-09-11
Applicant: NEXTracker Inc.
Inventor： Yang Liu , Alexander W. Au
IPC: H02S20/32 , H02S40/32 , H02S40/38 , H02S40/34 , H01L31/042
Abstract: A solar tracker apparatus includes an adjustable hanger assembly that has a clam shell hanger assembly. The clam shell hanger assembly may hold a torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end. A center of mass of the solar tracker apparatus may be aligned with a center of rotation of the torque tubes, in order to reduce a load of a drive device operably coupled to the torque tube. Solar modules may be coupled to the torque tubes. The solar tracker includes an energy system that includes solar panel, a DC to DC converter, a battery, and a micro-controller. The energy system may facilitate full operation movement of the tracker apparatus without any external power lines.
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公开(公告)号：US20210223348A1
公开(公告)日：2021-07-22
申请号：US17223983
申请日：2021-04-06
Applicant: NEXTracker Inc.
Inventor： Jérôme ARLIAUD , Adrien CRUCIFIX , Philippe Blanc
Abstract: A method for controlling the orientation of a single-axis solar tracker (1) orientable about an axis of rotation (A), said method repetitively completing successive control phases, where each control phase implements the following successive steps: a) observing the cloud coverage above the solar tracker (1); b) comparing the observed cloud coverage with cloud coverage models stored in a database, each cloud coverage model being associated to an orientation setpoint value of the solar tracker; c) matching the observed cloud coverage with a cloud coverage model; d) servo-controlling the orientation of the solar tracker by applying the orientation setpoint value associated to said cloud coverage model retained during step c). The present invention finds application in the field of solar trackers.
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公开(公告)号：US20210167719A1
公开(公告)日：2021-06-03
申请号：US17118557
申请日：2020-12-10
Applicant: NEXTracker Inc.
Inventor： Tyler Watson
IPC: H02S20/00 , F16B5/12 , F24S25/634
Abstract: The present disclosure describes a solar power system including rails, solar modules, and a plurality of adjustable clips to secure the solar modules to the rails. The clips include at least a base member, an elastomeric support member, a bracket member, and an alignment member configured to secure the various members of the clip together. The adjustable clips are configured to slide within a slot defined through a portion of a surface of a rail and including a recessed edge thereby allowing the rail system to accommodate solar modules of varying dimensions.
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公开(公告)号：US10951040B2
公开(公告)日：2021-03-16
申请号：US15965108
申请日：2018-04-27
Applicant: NEXTracker Inc.
Inventor： Yang Liu
IPC: H02J7/00 , H02J3/38 , G05B19/045
Abstract: A multi-power distributed storage system including a first power source; a second power source electrically connected to a common bus with the first power source; a single input port inverter electrically connected to the common bus. The system including a controller configured to communicate with at least the second power source, and the single input port inverter. The second power source including a plurality of battery banks and a plurality of bi-directional DC/DC converters configured to charge and discharge the plurality of battery banks and provide DC to the single input port inverter.
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