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公开(公告)号：US20210305932A1
公开(公告)日：2021-09-30
申请号：US17343600
申请日：2021-06-09
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：US20210293454A1
公开(公告)日：2021-09-23
申请号：US17185916
申请日：2021-02-25
Applicant: NEXTracker Inc.
Inventor： Yudong MA , Yang Liu , Francesco BORRELLI , Allan DALY , Ricardo DELGADO-NANEZ , Alexander W. AU
IPC: F24S30/422 , F24S25/10 , F24S30/425
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：US10651739B1
公开(公告)日：2020-05-12
申请号：US16284807
申请日：2019-02-25
Applicant: NEXTracker Inc.
Inventor： Chen Li , Yang Liu , Mohammad Salmaan Khan , Jonathan Kenzo Kamei , Sandeep Sanjiva Lele
IPC: H02M3/158 , G05F1/70 , H02M3/335 , H02S20/32 , H02P27/08 , H02S40/38 , H02J7/35 , H02S40/32 , G05F1/595 , H02M3/06
Abstract: A power converter converts a medium-voltage output from a solar module to an appropriate voltage to power a solar tracker system. The power converter includes a voltage divider having at least two legs, a first semiconductor switch subassembly coupled in parallel with a first leg of the voltage divider, and a second semiconductor switch subassembly coupled in parallel with a second leg of the voltage divider. In implementations, the signals for driving the semiconductor switches of the first and second semiconductor switch subassemblies may be shifted out of phase from each other. In implementations, if the bus voltages to the semiconductor switches are not balanced, the pulse width of the driving signal of the semiconductor switch supplied with the higher bus voltage is decreased for at least one cycle.
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公开(公告)号：US11300326B2
公开(公告)日：2022-04-12
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 , F24S25/10 , F24S30/425 , H02S20/10 , F24S20/00 , F24S30/00
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：US20220038049A1
公开(公告)日：2022-02-03
申请号：US17389192
申请日：2021-07-29
Applicant: NEXTracker Inc.
Inventor： Alexander W. AU , Venkata Rahul Abbaraju , Yang Liu , Wesley Chu
Abstract: A distributed direct current power system including an inverter to invert DC to alternating current (AC), a plurality of photovoltaic (PV) strings, and a plurality of maximum power point tracking (MPPT) converters coupled between the plurality of photovoltaic (PV) strings, respectively, and the central inverter, the plurality of MPPT converters configured to maximize solar power production by the plurality of PV strings and minimize mismatch between the plurality of PV strings. The system also including a plurality of batteries, a plurality of DC-DC battery converters (DCBC) coupled to the plurality of batteries and configured to manage charge and discharge of the plurality of batteries, enable interconnection of the plurality of PV strings and the plurality of batteries, and supply a constant medium DC voltage to the central inverter, and a hydrogen generation system in electrical communication with the inverter, the photovoltaic strings, or the batteries.
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Patent Agency Ranking
公开(公告)号：US20210341951A1
公开(公告)日：2021-11-04
申请号：US17268939
申请日：2019-08-28
Applicant: NEXTRACKER INC
Inventor： Yudong Ma , Francesco Borrelli , Yang Liu , Allan Daly
Abstract: A solar tracking system comprises multiple solar panel modules forming a grid of solar panel modules, wherein the multiple solar panel modules are movable relative to a solar source independently of each other; and a control system configured to orient each of the multiple solar panel modules to the solar source independently of each other based on a performance model to optimize an energy output from the grid of solar panel modules, wherein the performance model predicts an energy output from the grid of solar panel modules based on a topography of the area containing the grid of solar panel modules and weather conditions local to each of the solar panel modules.
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公开(公告)号：US20210273604A1
公开(公告)日：2021-09-02
申请号：US17320999
申请日：2021-05-14
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：US20210141047A1
公开(公告)日：2021-05-13
申请号：US16629300
申请日：2018-07-06
Applicant: NEXTracker Inc.
Inventor： Yudong MA , Francesco Borrelli , Allan Daly , Yang Liu
Abstract: A solar tracking system (200) comprises multiple solar panel modules (SPMi) forming a grid of solar panel modules, wherein the multiple solar panel modules (SPMi) are orientatable to a solar source independently of each other; and a control system (SPCi) configured to orient each of the multiple solar panel modules (SPMi) to the solar source independently of each other based on a performance model to optimize an energy output from the grid of solar panel modules, wherein the performance model predicts an energy output from the grid of solar panel modules based on a topography of the area containing the grid of solar panel modules and weather conditions local to each of the solar panel modules (SPMi).
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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：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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