Patents Assigned to NEXTRACKER INC.
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Publication number: 20210273604Abstract: 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.Type: ApplicationFiled: May 14, 2021Publication date: September 2, 2021Applicant: NEXTracker Inc.Inventors: Yang Liu, Chen Li
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Patent number: 11101768Abstract: 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: GrantFiled: September 11, 2018Date of Patent: August 24, 2021Assignee: NEXTRACKER INC.Inventors: Yang Liu, Alexander W. Au
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Publication number: 20210239340Abstract: 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.Type: ApplicationFiled: February 16, 2021Publication date: August 5, 2021Applicant: NEXTracker Inc.Inventors: Bruce Christopher Wootton, Rory Joseph Timar, Colin Patrick Murphy, Francesco Borrelli, Allan Daly
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Patent number: 11050383Abstract: A solar tracking system including a plurality of bases, a torque tube supported by the plurality of bases and configured to support a plurality of solar modules, and a drive device operably connected to the torque tube and arranged to translate the torque tube in a direction parallel to its longitudinal axis. The solar tracking system also includes a plurality of helical guides operably connected to the torque tube, and a plurality of cam assemblies, wherein upon linear movement of the torque tube, interaction between the helical guides and cam assemblies causes the torque tube to rotate about its linear axis.Type: GrantFiled: May 21, 2019Date of Patent: June 29, 2021Assignee: NEXTRACKER INCInventor: Tyler Watson
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Patent number: 11043607Abstract: In an example, the present invention provides a solar tracker apparatus. In an example, the apparatus comprises a center of mass with an adjustable hanger assembly configured with a clam shell clamp assembly on the adjustable hanger assembly and a cylindrical torque tube comprising a plurality of torque tubes configured together in a continuous length from a first end to a second end such that the center of mass is aligned with a center of rotation of the cylindrical torque tubes to reduce a load of a drive motor operably coupled to the cylindrical torque tube. Further details of the present example, among others, can be found throughout the present specification and more particularly below.Type: GrantFiled: June 30, 2017Date of Patent: June 22, 2021Assignee: NEXTRACKER INC.Inventor: Alexander W. Au
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Publication number: 20210184625Abstract: 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.Type: ApplicationFiled: February 26, 2021Publication date: June 17, 2021Applicant: NEXTracker Inc.Inventors: Jérôme ARLIAUD, Adrien CRUCIFIX, Philippe Blanc
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Publication number: 20210167719Abstract: 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: ApplicationFiled: December 10, 2020Publication date: June 3, 2021Applicant: NEXTracker Inc.Inventor: Tyler Watson
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Patent number: 10998849Abstract: In an example, the solar tracker has a clamp assembly configured to pivot a torque tube. In an example, the assembly has a support structure configured as a frame having configured by a first and 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, 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: GrantFiled: February 7, 2018Date of Patent: May 4, 2021Assignee: NEXTRACKER INC.Inventor: Alexander W. Au
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Patent number: 10985690Abstract: 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: GrantFiled: May 8, 2018Date of Patent: April 20, 2021Assignee: NEXTRACKER INC.Inventor: Alexander W. Au
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Patent number: 10951040Abstract: 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.Type: GrantFiled: April 27, 2018Date of Patent: March 16, 2021Assignee: NEXTRACKER INC.Inventor: Yang Liu
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Patent number: 10928100Abstract: 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.Type: GrantFiled: April 9, 2018Date of Patent: February 23, 2021Assignee: NEXTRACKER INC.Inventor: Alexander W. Au
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Patent number: 10921007Abstract: 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.Type: GrantFiled: March 2, 2020Date of Patent: February 16, 2021Assignee: NEXTRACKER INC.Inventors: Bruce Christopher Wootton, Rory Joseph Timar, Colin Patrick Murphy, Francesco Borrelli, Allan Daly
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Patent number: 10903783Abstract: 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.Type: GrantFiled: January 21, 2020Date of Patent: January 26, 2021Assignee: NEXTracker Inc.Inventors: Jérôme Arliaud, Adrien Crucifix, Philippe Blanc
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Patent number: 10892704Abstract: Solar array including solar modules distributed in rows (10), each solar module having a solar collector carried by a single-axis solar tracker (4), a reference solar power plant including a central reference solar module and at least one secondary reference solar module, and a piloting unit 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: GrantFiled: December 27, 2016Date of Patent: January 12, 2021Assignee: NEXTRACKER INC.Inventors: Madyan Michotte de Welle, Jérôme Arliaud
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Patent number: 10892703Abstract: 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.Type: GrantFiled: May 18, 2018Date of Patent: January 12, 2021Assignee: NEXTRACKER INC.Inventors: Yang Liu, Chen Li
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Patent number: 10868490Abstract: 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: GrantFiled: August 1, 2019Date of Patent: December 15, 2020Assignee: NEXTRACKER INC.Inventor: Tyler Watson
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Patent number: 10852385Abstract: 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: GrantFiled: December 27, 2016Date of Patent: December 1, 2020Assignee: NEXTracker Inc.Inventors: Jérôme Arliaud, Madyan Michotte De Welle
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Patent number: 10797635Abstract: A solar module mounting bracket assembly includes a rail configured to support a solar module thereon, and a pair of braces. The braces each have a first end portion movably coupled to the rail. The braces are movable relative to the rail between a collapsed configuration and an expanded configuration. In the expanded configuration, the braces cooperatively define a channel dimensioned for receipt of a frame member.Type: GrantFiled: August 29, 2018Date of Patent: October 6, 2020Assignee: NEXTRACKER INC.Inventors: Tyler Joseph Watson, Ricardo Delgado-Nanez
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Patent number: D905626Type: GrantFiled: July 25, 2019Date of Patent: December 22, 2020Assignee: NEXTRACKER INC.Inventor: Ricardo Delgado-Nanez
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Patent number: D909955Type: GrantFiled: August 9, 2017Date of Patent: February 9, 2021Assignee: NEXTRACKER INC.Inventor: Alexander W. Au