REDUNDANT ARRAY OF SINGLE AXIS TRACKING SOLAR PANELS
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United States of America Patent
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app pub date -
Aug 27, 2008
filing date -
Aug 27, 2008
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Abandoned
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Abstract
An array of independent single-axis tracking solar panel assemblies is provided which, compared to prior-art “ganged” tracking assemblies, can reduce production, installation, and operation costs of solar panel arrays, reduce power loss and down-time in the event of single-point failure, and increase annual power production. Each independent single-axis tracking solar panel assembly has one or more solar panels mounted on a rotatable support structure and its own motor, its own motor controller, and its own reduction gear box. Each assembly is supported at two points, one in the north and one in the south, so that the one or more solar panels in an assembly are rotated from east to west to track the angle of the sun. Each independent assembly may be wired directly to a power inverter and all may be wired in parallel. Each is protected with a series diode so that if one shorts, it cannot shunt power from another. If one fails, the power from each of the others continues to the power inverter, unaffected. Each assembly may be oriented so that it has a fixed tilt in the range of 20-40 degrees.
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