Automatic system for synchronous enablement-disablement of solar photovoltaic panels of an energy production plant with distributed DC/DC conversion
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United States of America Patent
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Nov 18, 2014
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N/A
app pub date -
Sep 22, 2011
filing date -
Sep 29, 2010
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Abstract
A solar energy plant may include a DC bus, photovoltaic panels coupled in parallel to the DC bus, each photovoltaic panel having a DC/DC converter, and a first controller controlling the DC/DC converter depending on whether a voltage on the DC bus is equal to or greater than a first threshold and lower than or equal to a second threshold. The solar energy plant may include a DC/AC inverter coupled to the DC bus and outputting an output AC voltage, an auxiliary start-up power supply charging a parasitic capacitance on the DC bus up to the first threshold, and a second controller turning on the auxiliary start-up power supply based upon a start command, and turning off the auxiliary start-up power supply and simultaneously turning on the DC/AC inverter.
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