Patents Assigned to NEXTRACKER LLC
  • Publication number: 20230051274
    Abstract: A bifacial solar module with enhanced power output including first and second transparent support layers, a plurality of electrically interconnected bifacial solar cells arranged between the transparent support layers with gaps between one or more of the interconnected solar cells and edges of the first and second transparent support layers, the bifacial solar cells having a first side directly exposed to solar radiation and a second side opposite the first. The bifacial solar module further includes one or more micro-structured reflective tapes positioned coincidentally with the gaps and attached to a surface of the second support layer such that light passing through the second support layer is reflected back into the second support layer at angles such that light reflecting from the tape is absorbed by either the first or second side of the bifacial solar cells.
    Type: Application
    Filed: November 1, 2022
    Publication date: February 16, 2023
    Applicant: Nextracker LLC
    Inventors: Daniel Shugar, Eric Cole
  • Patent number: 11563401
    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.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: January 24, 2023
    Assignee: NEXTRACKER LLC
    Inventor: Alexander W. Au
  • Patent number: 11558007
    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.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: January 17, 2023
    Assignee: NEXTRACKER LLC
    Inventor: Alexander W. Au
  • Patent number: 11558009
    Abstract: Solar array (1) comprising solar modules (3) distributed in rows (10), each solar module comprising solar collector (5) carried by a single-axis solar tracker (4), a reference solar power plant (2) comprising a central reference solar module and at least one secondary reference solar module, and a piloting unit (7) adapted for: piloting the angular orientation of the central reference module according to a central reference orientation setpoint corresponding to an initial orientation setpoint, piloting the orientation of each secondary reference module according to a secondary reference orientation setpoint corresponding to the initial orientation setpoint shifted by a predefined offset angle; receiving an energy production value from each reference module; piloting the orientation of the modules, except for the reference modules, by applying the reference orientation setpoint associated to the reference module having the highest production value.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: January 17, 2023
    Assignee: NEXTRACKER LLC
    Inventors: Madyan Michotte De Welle, Jérôme Arliaud
  • Publication number: 20230009592
    Abstract: A clamp assembly for use with a solar module includes a first clamping arm operably coupled to a first portion of a solar module, a second clamping arm operably coupled to a second portion of the solar module and operably coupled to the first clamping arm and disposed in juxtaposed relation thereto, and a fastener operably coupled to a respective portion of each of the first and second clamping arms. The fastener is configured to draw each of the first and second clamping arms towards one another from a first, open position, where the solar module is free to move relative to first and second clamping arms to a second, closed position, where the solar module is inhibited from moving relative to the first and second clamping arms.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 12, 2023
    Applicant: Nextracker LLC
    Inventors: Abhimanyu Sable, Phani Kumar, Jitendra Morankar
  • Patent number: 11552208
    Abstract: A solar module configured in a frame assembly with multi-configuration attachment member(s), which has locking and unlocking characteristics.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: January 10, 2023
    Assignee: NEXTRACKER LLC
    Inventor: Alexander W. Au
  • Publication number: 20230003287
    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.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 5, 2023
    Applicants: Nextracker LLC, Nextracker LLC
    Inventor: Andrew Smith
  • Publication number: 20230003824
    Abstract: A solar tracking system comprises multiple solar panel modules forming a grid of solar panel modules, wherein the multiple solar panel modules are orientatable 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.
    Type: Application
    Filed: September 13, 2022
    Publication date: January 5, 2023
    Applicant: Nextracker LLC
    Inventors: Yudong MA, Francesco Borrelli, Allan Daly, Yang Liu
  • Patent number: 11525604
    Abstract: A coupling system for use with a solar tracker includes a support flange, a swivel flange rotatably supported on the support flange, an articulation joint interposed between each of the support flange and the swivel flange and rotatably supported by each of the support flange and the swivel flange, wherein opposed first and second end portions of the articulation joint are configured to be operably coupled to a respective first and second torque tube, and at least one locking fastener selectively coupled to a portion of the support flange and a portion of the swivel flange, the at least one locking fastener configured to selectively inhibit rotation of the swivel flange relative to the support flange.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: December 13, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Ricardo Delgado-Nanez, Kin Tsim
  • Patent number: 11522383
    Abstract: Systems and methods for managing flow batteries utilize a battery management controller (BMC) coupled between a flow battery and a DC/DC converter, which is coupled to an electrical grid or a photovoltaic device via an inverter. The inverter converts an AC voltage to a first DC voltage and the DC/DC converter steps down the first DC voltage to a second DC voltage. The BMC includes a first power route, a second power route, and a current source converter coupled to the second power route. The BMC initializes the flow battery with a third DC voltage using the current source converter until a sensing circuit senses that the voltage of the flow battery has reached a predetermined voltage. The sensing circuit may include a capacitor, which has a small capacitance and is coupled across each cell of the flow battery, coupled in series between two resistors having very large resistances.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: December 6, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Chen Li, Yang Liu, Jonathan Kenzo Kamei
  • Publication number: 20220376646
    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.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 24, 2022
    Applicant: Nextracker LLC
    Inventor: Tyler Watson
  • Patent number: 11502638
    Abstract: A solar module mounting bracket system including a plurality of solar modules including mounting slots formed in a sidewall of the solar module, a torque tube configured to support the solar modules such that they can be rotated, a plurality of mounting brackets configured for integration with the torque tube and to which the plurality of solar modules are mounted, at least one first retainer assembly connected to one of the plurality of mounting brackets, the first retainer assembly including a through bolt, a spring, a mounting tab, and nut. When a solar module is placed on the mounting bracket and supported by the torque tube the mounting tab retainer assembly is received in the mounting slot of the solar module.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: November 15, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Tyler Joseph Watson, Dennis Marvin Lawson, Thao Thanh Hoang, Paul Daniel Habib
  • Patent number: 11489488
    Abstract: A bifacial solar module with enhanced power output including first and second transparent support layers, a plurality of electrically interconnected bifacial solar cells arranged between the transparent support layers with gaps between one or more of the interconnected solar cells and edges of the first and second transparent support layers, the bifacial solar cells having a first side directly exposed to solar radiation and a second side opposite the first. The bifacial solar module further includes one or more micro-structured reflective tapes positioned coincidentally with the gaps and attached to a surface of the second support layer such that light passing through the second support layer is reflected back into the second support layer at angles such that light reflecting from the tape is absorbed by either the first or second side of the bifacial solar cells.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: November 1, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Daniel Shugar, Eric Cole
  • Patent number: 11466760
    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.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: October 11, 2022
    Assignee: NEXTRACKER LLC
    Inventor: Andrew Smith
  • Patent number: 11451052
    Abstract: Systems and methods integrate advanced solar tracker, battery, inverter, and software technologies to improve performance, plant output, and costs. The systems may incorporate an advanced vanadium flow battery (VFB) that is DC-voltage (DV)-coupled to photovoltaic (PV) arrays for high, round-trip efficiency. The systems incorporate a DC architecture that optimizes performance for commercial, industrial, agricultural, and utility applications. A distributed direct current (DC) power system includes a centralized, single-stage inverter; PV arrays; maximum power point tracking (MPPT) converters coupled between the PV arrays and the centralized, single-stage inverter; batteries; and DC-DC battery converters (DCBCs) coupled to the batteries. The MPPT converters maximize solar power production by the PV arrays and minimize mismatch between the PV arrays.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: September 20, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Alexander W. Au, Yang Liu
  • Patent number: 11442132
    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).
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: September 13, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Yudong Ma, Francesco Borrelli, Allan Daly, Yang Liu
  • Publication number: 20220276331
    Abstract: In an example, the present invention provides a solar tracker apparatus configured with an off-set drive assembly. In an example, the apparatus has an inner race structure, which has a cylindrical region coupled to a main body region, the main body comprising an off-set open region. The cylindrical region is an annular sleeve structure coupled to the main body region, which occupies the spatial region within the cylindrical region. In an example, the apparatus has an outer race structure coupled to enclose the inner race structure, configured to couple the inner race structure to allow the inner race structure to move in a rotational manner about a spatial arc region; and configured to allow the inner race structure to pivot about a region normal to a direction of the spatial arc region. In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube.
    Type: Application
    Filed: May 11, 2022
    Publication date: September 1, 2022
    Applicant: Nextracker LLC
    Inventor: Alexander W. AU
  • Patent number: 11411529
    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.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 9, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Yang Liu, Alexander W. Au
  • Patent number: 11397235
    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.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: July 26, 2022
    Assignee: NEXTRACKER LLC
    Inventors: Jérôme Arliaud, Madyan Michotte De Welle
  • Patent number: 11391809
    Abstract: In an example, the present invention provides a solar tracker apparatus configured with an off-set drive assembly. In an example, the apparatus has an inner race structure, which has a cylindrical region coupled to a main body region, the main body comprising an off-set open region. The cylindrical region is an annular sleeve structure coupled to the main body region, which occupies the spatial region within the cylindrical region. In an example, the apparatus has an outer race structure coupled to enclose the inner race structure, configured to couple the inner race structure to allow the inner race structure to move in a rotational manner about a spatial arc region; and configured to allow the inner race structure to pivot about a region normal to a direction of the spatial arc region. In an example, the solar tracker has a clamp assembly that is configured to pivot a torque tube.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: July 19, 2022
    Assignee: NEXTRACKER LLC
    Inventor: Alexander W. Au