Emirates scientists have developed a novel lightning mast structure that reportedly eliminates the shading impact of PV panels. The proposed methodology additionally addresses the soil grid necessities beneath completely different moisture circumstances.
A workforce of scientists on the University of Wollongong in Dubai has proposed a brand new method to deploy direct lightning safety know-how on websites internet hosting PV techniques with an east-west orientation and there’s a restricted distance between the panels.
They defined that the mixing of direct lightning safety in such a photo voltaic array is tough by way of compliance with the necessities of the Earth Terminal System (ETS) and direct lightning safety, particularly in rooftop installations.
“The proposed methodology introduces equations to assist the brand new methodology for horizontal lightning poles and addresses the necessities of the bottom grid beneath completely different moisture circumstances,” the workforce stated. “The equations supplied within the paper allow engineers to configure panel setups for east and west orientations utilizing solely three knowledge units whereas making certain compliance with direct lightning protections.”
on paper”A novel lightning mast structure to Eliminate the Shading Effect of PV panels,” revealed in Electric Power Systems Researchthe analysis workforce defined that typical lightning safety options reminiscent of excessive mast installations may end up in adequate shading of the panels, and stated that the proposed methodology permits a exact design of metal panels to fulfill lightning safety requirements with none shading.
“In a state of affairs the place the photo voltaic panels are put in back-to-back, with one facet dealing with east and the opposite dealing with west, the standard set up of lightning poles cannot do with out the shading of the panels,” stated the teachers, saying that the shading. can result in scorching spots and diminished panel effectivity. “The new methodology entails putting in horizontal lightning rods alongside the size of the panel as an alternative of vertical ones.”
The proposed system additionally makes use of horizontal bars manufactured from copper straps connected to the metal assist construction of the panels. “This setup ensures that the size of the horizontal copper deal with is stored brief and varies relying on the peak of the panel,” emphasised the teachers. “These heights are primarily based on panels as much as 600 W within the present market.”
They additionally warning that the chosen copper strap, rod, or defend wire shouldn’t sag beneath its personal weight or robust wind circumstances and stated that mission builders might also think about using copper clad metal rods that meet the required present carrying capability and stand up to injury from lightning power. “These kinds of rods or straps supply nice grip power,” they stated. “The distance between the drop conductors should adjust to the related requirements and insurance policies set forth within the reference.”
The proposed pointers can present satisfactory lightning safety in opposition to the chance of injury throughout storm circumstances and likewise assist scale back prices for the earth grid, in line with the analysis workforce.
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