Photovoltaic array with two-axis power maximization tracking

Details Photovoltaic array with two-axis power maximization tracking Photovoltaic array with two-axis power maximization tracking

1988-06-20

1989-09-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

136246, G01J 120

Patent

active

048683795

ABSTRACT:
A control system for maximizing the power supplied by an array of solar cells senses the current and voltage produced and multiplies these to determine the instantaneous power. The array is tilted slightly in a first direction and the effect on the instantaneous power is noted. If an increase in power was produced, a further movement in the same direction is executed; but if the first movement produced a reduction in power, a movement in the opposite direction is executed. The process continues until no increase in power is obtained in either direction. Thereafter, the same process is carried out with respect to a second axis of the solar array.

REFERENCES:
patent: 4223214 (1980-09-01), Dorian et al.
patent: 4320288 (1982-03-01), Schlarlack
patent: 4628142 (1986-12-01), Hashizume

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