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    Systems and methods of DC power conversion and transmission for solar fields
    33.
    发明授权
    Systems and methods of DC power conversion and transmission for solar fields 有权

    公开(公告)号：US11451052B2

    公开(公告)日：2022-09-20

    申请号：US16402695

    申请日：2019-05-03

    Applicant: NEXTracker Inc.

    Inventor： Alexander W. Au ,  Yang Liu

    IPC: H02J1/10 ,  H02S40/32 ,  H02S40/36 ,  H02S40/38 ,  H02J7/00 ,  H02J7/35 ,  H02J3/38

    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. The DCBCs manage charge and discharge of the batteries, enable the interconnection of the PV arrays and the batteries, and supply a constant medium voltage to the central inverter.

    Horizontal balanced solar tracker
    34.
    发明授权
    Horizontal balanced solar tracker 有权

    公开(公告)号：US11362227B2

    公开(公告)日：2022-06-14

    申请号：US17347393

    申请日：2021-06-14

    Applicant: NEXTracker Inc.

    Inventor： Alexander W. Au

    IPC: H02S20/32 ,  F24S25/10 ,  F24S25/70 ,  F24S30/425 ,  H01L31/052 ,  F24S30/00

    Abstract: 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.

    SELF-POWERED SOLAR TRACKER APPARATUS
    36.
    发明申请
    SELF-POWERED SOLAR TRACKER APPARATUS 有权

    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.

    Clamp assembly for solar tracker
    38.
    发明授权
    Clamp assembly for solar tracker 有权

    公开(公告)号：US10998849B2

    公开(公告)日：2021-05-04

    申请号：US15890934

    申请日：2018-02-07

    Applicant: NEXTracker Inc.

    Inventor： Alexander W. Au

    IPC: H02S20/32 ,  H02S20/00 ,  F16L3/02 ,  F16M13/02 ,  F24S25/70 ,  F24S30/425 ,  F24S25/10 ,  F24S30/00

    Abstract: 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.

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