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公开(公告)号：US10928100B2
公开(公告)日：2021-02-23
申请号：US15948960
申请日：2018-04-09
Applicant: NEXTracker Inc.
Inventor： Alexander W. Au
IPC: F24S30/425 , H02S20/32 , F24S25/33 , F24S25/10 , F24S25/70 , H01L31/054 , H02S20/10 , F24S25/65 , F24S30/00 , F24S25/60
Abstract: A solar tracker including a torque tube, a drive device connected to one end of the torque tube, a frame assembly coupled to the torque tube, the frame assembly arranged perpendicular to the axis of the torque tube and supporting a plurality of solar modules. The solar tracker further includes a clamp assembly having a housing coupled to the torque tube where the torque tube is coupled to the housing, the housing having an opening with a major plane normal to a length of the torque tube, the opening having an inner region that acts as a stop for the torque tube when moved in a first direction, and as a stop for the torque tube when moved in a second direction and the drive device is operable to move the torque tube about a center of rotation from a first position to a second position.
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142.发明授权公开(公告)号：US10921007B2
公开(公告)日：2021-02-16
申请号：US16806522
申请日：2020-03-02
Applicant: NEXTracker Inc.
Inventor： Bruce Christopher Wootton , Rory Joseph Timar , Colin Patrick Murphy , Francesco Borrelli , Allan Daly
Abstract: A testing platform tests an electrical and mechanical system such as an HVAC unit according to an algorithm that reduces the total testing time of the components of the system, while ensuring the safety of the system during system-wide testing. The platform uses constraints that are checked both before and during the testing to ensure that HVAC operating conditions are acceptable for starting and maintaining component tests. Preferably, the platform uses finite-state machines for each device to organize the component tests, allowing for monitoring of constraints and starting, pausing, and stopping component tests. Preferably, total test execution time is reduced by running component tests in parallel, running component tests based on loads of the components, or combinations of both.
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公开(公告)号：US20200373878A1
公开(公告)日：2020-11-26
申请号：US16422361
申请日：2019-05-24
Applicant: NEXTracker Inc.
Inventor： Andrew Smith
Abstract: A solar tracking system includes a solar array, support beams that support the solar array, a torque tube coupled to the support beams, a base that rotatably supports the torque tube, and an articulation system that rotates the torque tube relative to the base. The articulation system includes an outer tube, a screw rod, and a nut and/or inner tube that rotates and translates along a length of the screw rod as the screw rod rotates. The interior portion of the outer tube includes helical grooves and the exterior portion of the nut or inner tube includes ridges or rollers that mate with the helical grooves, which cause the nut and/or inner tube to rotate as the nut and/or inner tube is translated along a length of the screw rod when the screw rod is rotated by the motor.
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公开(公告)号：US20200182513A1
公开(公告)日：2020-06-11
申请号：US16788171
申请日：2020-02-11
Applicant: NEXTracker Inc.
Inventor： Yu Dong MA , Yang Liu , Francesco BORRELLI , Allan DALY , Ricardo DELGADO-NANEZ , Alexander W. AU
IPC: F24S30/422 , F24S30/425 , F24S25/10
Abstract: A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.
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公开(公告)号：US10601365B2
公开(公告)日：2020-03-24
申请号：US15979368
申请日：2018-05-14
Applicant: NEXTracker Inc.
Inventor： Alexander W. Au
IPC: H02S20/32 , F16F1/36 , F16M11/04 , F24S40/80 , F24S25/65 , F24S30/425 , F16F15/08 , H02S30/10 , F24S25/60 , F24S30/00
Abstract: In an example, the system has a mechanical isolator comprising an elastic material configured to separate the panel rail from the torque tube cause destructive interference with a natural resonant frequency of the system without the mechanical isolator to reduce a mechanical vibration of the system.
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Patent Agency Ranking
公开(公告)号：US20190356265A1
公开(公告)日：2019-11-21
申请号：US15983718
申请日：2018-05-18
Applicant: NEXTracker Inc.
Abstract: A solar tracker system including a tracker apparatus including a plurality of solar modules, each of the solar modules being spatially configured to face in a normal manner in an on sun position in an incident direction of electromagnetic radiation derived from the sun, wherein the solar modules include a plurality of PV strings, and a tracker controller. The tracker controller includes a processor, a memory, a power supply configured to provide power to the tracker controller, a plurality of power inputs configured to receive a plurality of currents from the plurality of PV strings, a current sensing unit configured to individually monitor the plurality of currents, a DC-DC power converter configured to receive the plurality of power inputs powered from the plurality of PV strings to supply power to the power supply, and a motor controller, wherein the tracker controller is configured to track the sun position.
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公开(公告)号：US20190334349A1
公开(公告)日：2019-10-31
申请号：US15965108
申请日：2018-04-27
Applicant: NEXTracker Inc.
Inventor： Yang Liu
IPC: H02J3/38 , H02J7/00 , 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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公开(公告)号：US20190204405A1
公开(公告)日：2019-07-04
申请号：US16067925
申请日：2016-12-27
Applicant: NEXTracker Inc.
Inventor： Jérôme ARLIAUD , Madyan MICHOTTE DE WELLE
CPC classification number: G01S3/7861 , F24S23/70 , F24S50/20 , F24S2050/25 , H02S20/10 , H02S20/32
Abstract: A method for controlling the orientation of a solar module including a single-axis solar tracker orientable about an axis of rotation, and a photovoltaic device supported by said tracker and having upper and lower photoactive faces, including: measurement of a distribution of the solar luminance called incident luminance originating from the incident solar radiation coming from the sky to reach the upper face, said distribution being established according to several elevation angles; measurement of a distribution of the solar luminance called reflected luminance originating from the albedo solar radiation corresponding to the reflection of the solar radiation on the ground to reach the lower face, said distribution being established according to several elevation angles; determination of an optimum orientation considering the measurements of said distributions of the incident and reflected solar luminance; servo-control of the orientation of the module on said optimum orientation.
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公开(公告)号：US20190131920A1
公开(公告)日：2019-05-02
申请号：US15974553
申请日：2018-05-08
Applicant: NEXTracker Inc.
Inventor： Alexander W. AU
Abstract: In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first anchoring region and a second anchoring region. In an example, the support structure is configured from a thickness of metal material. In an example, the support structure is configured in an upright manner, and has a major plane region. In an example, the assembly has a pivot device configured on the support structure and a torque tube suspending on the pivot device and aligned within an opening of the support and configured to be normal to the plane region. In an example, the torque tube is configured on the pivot device to move about an arc in a first direction or in a second direction such that the first direction is in a direction opposite to the second direction.
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公开(公告)号：US20190036478A1
公开(公告)日：2019-01-31
申请号：US16128022
申请日：2018-09-11
Applicant: NEXTracker Inc.
Inventor： Yang Liu , Alexander W. Au
IPC: H02S20/32 , H01L31/042 , H02S40/38 , H02S40/32 , H02S40/34
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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