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    State of health mechanisms for energy generation systems
    1.
    发明授权
    State of health mechanisms for energy generation systems 有权

    公开(公告)号：US10992257B2

    公开(公告)日：2021-04-27

    申请号：US15461295

    申请日：2017-03-16

    Applicant: SolarCity Corporation

    Inventor： Sandeep Narla

    IPC: H02S50/10 ,  G01R1/00 ,  H02S10/00

    Abstract: A method of monitoring state of health for an energy generation system includes receiving a measurement of a parameter of an electrical component in the PV energy generation system at an instance in time, referencing a look-up table containing several values of the parameter representing an expected degradation trend across a progression of time for the electrical component, comparing the measurement to an expected value of the expected degradation trend for a period of time corresponding to the instance in time, and initiating a preventative measure based upon the comparison between the measurement and the expected value of the expected degradation trend.

    Discrete attachment point apparatus and system for photovoltaic arrays
    5.
    发明授权
    Discrete attachment point apparatus and system for photovoltaic arrays 有权

    公开(公告)号：US10309690B2

    公开(公告)日：2019-06-04

    申请号：US15866116

    申请日：2018-01-09

    Applicant: SolarCity Corporation

    Inventor： Jack Raymond West ,  David Youmans ,  Brian Atchley

    IPC: F24S25/33 ,  F24S25/65 ,  F24S25/70 ,  F24S25/613 ,  F24S25/632 ,  F24S25/636 ,  H02S20/23 ,  F24S25/00

    Abstract: An attachment point apparatus and system for photovoltaic arrays is disclosed. One embodiment provides a rail system for receiving a PV module, including a first rail, a second rail, a substantially rectilinear double male connector adapted for coupling an end of the first rail to an end of the second rail, and a connector adapted to attach a PV module to the first rail. Another embodiment provides a PV module including a PV laminate, a frame integral with and supporting the PV laminate, and a spanner bar adapted to solely span a width of the PV module, orthogonally connect at various locations along the frame, and attach to a support structure. A further embodiment provides a coupling device for a PV module comprising a first coupling portion adapted to rotatably engage a PV module, and a second coupling portion adapted to rotatably engage a rail.

    Multiple inverter power control systems in an energy generation system
    7.
    发明授权
    Multiple inverter power control systems in an energy generation system 有权

    公开(公告)号：US10305286B2

    公开(公告)日：2019-05-28

    申请号：US15161104

    申请日：2016-05-20

    Applicant: SolarCity Corporation

    Inventor： Sandeep Narla

    IPC: H02J3/00 ,  H02J3/32 ,  H02J3/38 ,  H02J7/00 ,  H02J7/35 ,  H02M1/00 ,  H02M7/00 ,  H02M7/44 ,  H02M7/537

    Abstract: A power control system includes a first inverter power control system and a second inverter power control system coupled in a parallel configuration with the first inverter power control system. Both first and second inverter power control systems may each include an input configured to receive direct current (DC) power; a DC to alternating current (AC) inverter stage configured to receive the DC power input; an anti-islanding relay coupled to the output of the DC/AC inverter stage; and a transition relay coupled to the anti-islanding relay. The transition relay may be configured to route an output of the inverter power control system between one or more onsite back-up loads and an AC grid. The first inverter power control system may be designated as a master that is configured to control the operation of the second inverter power control system designated as a slave.

    ENERGY GENERATION AND STORAGE SYSTEM WITH ELECTRIC VEHICLE CHARGING CAPABILITY
    8.
    发明申请
    ENERGY GENERATION AND STORAGE SYSTEM WITH ELECTRIC VEHICLE CHARGING CAPABILITY 审中-公开

    公开(公告)号：US20190135116A1

    公开(公告)日：2019-05-09

    申请号：US16235967

    申请日：2018-12-28

    Applicant: SolarCity Corporation

    Inventor： Sandeep Narla

    IPC: B60L8/00 ,  H02M3/04 ,  H02J9/06 ,  H02J7/35 ,  H02J3/38 ,  H02M7/44 ,  B60K1/04

    Abstract: A system for energy conversion with electric vehicle (EV) charging capability includes a hybrid inverter comprising a DC/DC converter stage for receiving power from a photovoltaic array, a capacitor bank, and a DC-AC inverter coupled to the capacitor bank. The DC-AC inverter includes a battery pack connection for supplying energy to or receiving energy from a battery pack, an AC grid connection for supplying power to or receiving power from an AC grid, a connection for supplying power to a load, and an EV connection for supplying power to or receiving power from an EV battery. The system also includes a controller for generating control signals to control the flow of power within the hybrid inverter, which converts power received from at least one of the photovoltaic array and the battery pack and provides the converted power to charge the EV battery via the EV connection.

    Systems and methods for targeted annealing of photovoltaic structures
    10.
    发明授权
    Systems and methods for targeted annealing of photovoltaic structures 有权

    公开(公告)号：US10236406B2

    公开(公告)日：2019-03-19

    申请号：US14866817

    申请日：2015-09-25

    Applicant: SolarCity Corporation

    Inventor： Pablo Gonzalez ,  Bobby Yang

    IPC: H01L31/18 ,  H01L31/05 ,  H05K3/12 ,  H01L21/67

    Abstract: A targeted-annealing system can automatically cure a conductive paste that may bind cascaded strips of a string. The targeted-annealing system can include a first heat-treating bar that may be heated to a first curing temperature, and can include a second heat-treating bar that may be heated to a second curing temperature. During operation, a controller of the targeted-annealing system can activate one or more actuators to conform the first heat-treating bar to a top surface of two cascaded strips, and conform the second heat-treating bar to a bottom surface of two cascaded strips. The first and second heat-treating bars may be aligned along an overlap portion between the two cascaded strips, and can heat the overlap portion to 160 degrees Celsius.

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