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Patexia Research
Patent No. US 11018619
Issue Date May 25, 2021
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Patent 11018619 - Photovoltaic cabling optimization for solar trackers using a plug and play harness configuration > Claims

  • 1. A photovoltaic, PV, installation, comprising: a plurality of solar trackers arranged in rows in a N-S direction,each solar tracker comprising a plurality of photovoltaic modules, anda switch-box and an inverter,a trunk cable, anda cable harness configuration to connect said plurality of solar trackers;wherein said cable harness configuration comprises: a plurality of output strings, for each solar tracker, each output string electrically connecting a predetermined number of said photovoltaic modules, andone or more connector devices connecting said plurality of strings and said trunk cable,wherein each solar tracker has associated a fuse-box with a plurality of connection inputs according to the number of output strings of each solar tracker, connected in parallel, and said fuse-box has a single cable or connector output which is connected to the trunk cable through the use of said connector device,wherein the fuse-box includes a fuse connected in series with each input for each output string of the solar tracker,wherein each output string includes a positive electric pole cable and a negative electric pole cable, andwherein the trunk cable also includes a positive electric pole cable and a negative electric pole cable, which are connected to the switch-box and the inverter.
    • 2. The photovoltaic, PV, installation according to claim 1, wherein the fuse-box of each solar tracker comprises two separate fuse-boxes units: a first fuse-box unit to connect the positive electric pole cables of each output string, anda second fuse-box unit to connect the negative electric pole cables of each output string.
    • 3. The photovoltaic, PV, installation according to claim 1, wherein the fuse-boxes installed in each one of the rows of solar trackers, includes a measuring device configured to measure an electric current of each string inserted in each fuse-box.
      • 4. The photovoltaic, PV, installation according to claim 3, wherein said electric current measuring device measures and transmits the measured electric current of each string inserted in each fuse-box to a control station of the PV installation.
        • 6. The photovoltaic, PV, installation according to claim 4, wherein said electric current measuring device measures and transmits the electric current output from each fuse-box to a control station of the PV installation.
      • 5. The photovoltaic, PV, installation according to claim 3, wherein said electric current measuring device measures and transmits the electric current output from each fuse-box to a control station of the PV installation.
    • 7. The photovoltaic, PV, installation according to claim 1, wherein each solar tracker comprises three or more output strings.
    • 8. The photovoltaic, PV, installation according to claim 1, wherein the photovoltaic modules of each output string are connected in a leap-frog configuration.
    • 9. The photovoltaic, PV, installation according to claim 1, wherein each output string connects a predetermined number of photovoltaic modules.
      • 10. The photovoltaic, PV, installation according to claim 9, wherein each output string connects at least 10 photovoltaic modules.
        • 11. The photovoltaic, PV, installation according to claim 10, wherein each output string connects between 10 and 50 photovoltaic modules.
    • 12. The photovoltaic, PV, installation according to claim 1, wherein the one or more connector devices are selected from the group consisting of one or more single connectors, one or more T-connectors and combinations thereof.
    • 13. The photovoltaic, PV, installation according to claim 1, wherein the inverter is connected to the switch-box and converts direct current into alternating current.
    • 14. The photovoltaic, PV, installation according to claim 1, wherein a first output string of a solar tracker at the start of a row of solar trackers is connected directly to the trunk cable and comprises an inline fuse.
    • 15. The photovoltaic, PV, installation according to claim 1, wherein second and third output strings of a solar tracker at the end of a row of solar trackers are connected to an additional fuse-box whose cable output is connected directly to the switch-box and the inverter.
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