Electrical transmission or interconnection systems – Plural supply circuits or sources – Diverse or unlike electrical characteristics
Reexamination Certificate
2011-06-14
2011-06-14
Riley, Shawn (Department: 2838)
Electrical transmission or interconnection systems
Plural supply circuits or sources
Diverse or unlike electrical characteristics
C323S906000, C136S206000
Reexamination Certificate
active
07960863
ABSTRACT:
A system and method for operating a photovoltaic element at or near a maximum power point. A maximum power point tracker changes a voltage or current set point of a photovoltaic element in sequential discrete steps, measuring an output power at each step after a predetermined settling time. A slope of a power-voltage curve is then estimated and the slope is corrected for irradiance changes. Finally, an operating voltage or current of the photovoltaic element is adjusted based on the slope of the power-voltage curve and other factors, causing the photovoltaic element to operate at or near its maximum power.
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Fife John M.
Hummel Steven G.
Mills-Price Michael A.
Perkins Coie LLP
PV Powered, Inc.
Riley Shawn
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