System and method of determining maximum power point...

Details System and method of determining maximum power point... System and method of determining maximum power point...

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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