Photovoltaic System Protection

摘要

A method includes measuring one or more performance metrics of a set of solar cells coupled to an inverter. Based at least on the performance metrics meeting a first criterion, a first subset of the set of solar cells are disabled, reducing a voltage, power, or current provided to the inverter. Based at least on the performance metrics meeting a second criterion, a second subset of the set of solar cells are disabled, further reducing a voltage, power, or current provided to the inverter.

主权项

1. A system comprising:
a plurality of solar cells, wherein the plurality of solar cells comprises
a first set of one or more solar cells,a second set of one or more solar cells; a first control element configured to substantially disable a subset of the first set of solar cells in response to the first set of solar cells generating electricity at more than a first threshold voltage; and a second control element configured to substantially disable a subset of the second set of solar cells in response to the second set of solar cells generating electricity at more than a second threshold voltage, wherein the first and second threshold voltages are based at least on an operating limit of an inverter coupled to the plurality of solar cells.