Power generation device and system capable of maximum power tracking

    公开(公告)号:US12117859B2

    公开(公告)日:2024-10-15

    申请号:US17436252

    申请日:2019-04-28

    发明人: Guoming Wu

    IPC分类号: H02J3/38 G05F1/67

    摘要: A power generation device capable of maximum power tracking includes a power generation assembly and at least one optimizer, the optimizer includes a maximum power tracking circuit, a drive control circuit, a first switch and a second switch arranged in a chip. The maximum power tracking circuit includes a voltage and current detection unit, a multiplier, and a maximum power tracking processing unit, wherein the multiplier is configured to multiply an assembly output voltage of the power generation assembly by an assembly output current of the power generation assembly to obtain an assembly output power of the power generation assembly; the maximum power tracking processing unit is configured to track and determine a current maximum power of the power generation assembly according to the assembly output power, determine the duty ratio signal according to the current maximum power, and send the duty ratio signal to the drive control circuit.

    ELECTRONIC DEVICE
    4.
    发明公开
    ELECTRONIC DEVICE 审中-公开

    公开(公告)号:US20240231402A9

    公开(公告)日:2024-07-11

    申请号:US17970538

    申请日:2022-10-20

    IPC分类号: G05F1/575 G05F1/46 G05F1/67

    CPC分类号: G05F1/575 G05F1/461 G05F1/67

    摘要: An electronic device is provided. The electronic device includes a power generator, a power regulator and an electronic element. The power generator is configured to provide an input voltage. The power regulator includes a voltage regulator. The voltage regulator is electrically connected to the power generator. The voltage regulator is configured to receive the input voltage to generate an output voltage. The electronic element is electrically connected to the power regulator. The electronic element is configured to receive the output voltage. The power regulator generates a control signal according to the input voltage. The power regulator provides the control signal to the electronic element. An adjustable level of the electronic element is adjusted according to the control signal.

    STRING OPTIMA FOR TRACKING EQUAL VOLTAGE IN UNITS OF STRINGS, AND SOLAR POWER GENERATION SYSTEM TO WHICH SAME IS APPLIED

    公开(公告)号:US20240053786A1

    公开(公告)日:2024-02-15

    申请号:US18269580

    申请日:2021-12-24

    IPC分类号: G05F1/67 H02J3/38 H02S40/32

    摘要: A photovoltaic power generation system includes a plurality of solar cell strings each including a plurality of photovoltaic PV modules, a plurality of string optimizers each connected to an output terminal of each of the plurality of solar cell strings, an inverter configured to automatically track an MPP from an equal voltage output from each of the plurality of string optimizers, inverts a result thereof into AC power, and links the AC power to the system, wherein the string optimizer includes an input processor configured to receive input of generated power from any first solar cell string, a booster configured to boost or bypass generated power input through the input processor, and output the generated power, an output processor configured to output an output of the booster to a back end, and an MCU configured to perform MPPT in units of strings to control an operation of the booster.

    Matcher for multi module solar string power generation systems and a method thereof

    公开(公告)号:US11874681B2

    公开(公告)日:2024-01-16

    申请号:US17295188

    申请日:2019-11-11

    摘要: The present invention relates to an apparatus for maximizing the power of a multi module solar string power generation system, comprising an Injection Circuit (IC), connected to a DC bus and to a string of solar panels, wherein the IC is also connected to at least one separated solar panel of the string. The IC regulates the power production of the connected string and utilizes the excess power to the solar inverter. The IC comprises: (i) a first MPPT mechanism, for finding the MPP of the string; (ii) a second MPPT mechanism, for finding the MPP of the separated panel; (iii) a first DC/DC converter, for converting some of the power, from the separated panel, to regulating power for the connected string; and (iv) a second DC/DC converter, for converting and utilizing, the excess power from the separated panel, to the solar inverter using the DC bus.

    PHOTONIC HARVESTING STRING CONFIGURATION
    10.
    发明申请

    公开(公告)号:US20190138042A1

    公开(公告)日:2019-05-09

    申请号:US15807061

    申请日:2017-11-08

    摘要: One embodiment provides a method, including: receiving photovoltaic output from a solar module, the solar module comprising a plurality of solar panels electronically connected together by a plurality of strings, wherein the photovoltaic output corresponding to any given one of the strings is limited by the lowest performing solar panel in said given one of the strings; determining a reflection profile for the solar module, wherein the reflection profile describes an illumination pattern of light incident onto the solar module; and increasing, based upon the determined reflection profile, the photovoltaic output of the solar module to match a requested photovoltaic output, wherein the increasing comprises electrically reassigning one or more solar panels within the solar module from one string to a different string, such that each string electrically ties together solar panels that produce a photovoltaic output within a predetermined range of each other.