Multi-cellular photovoltaic panel system with DC-DC...

Details Multi-cellular photovoltaic panel system with DC-DC... Multi-cellular photovoltaic panel system with DC-DC...

2009-01-09

2011-10-25

Fureman, Jared (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Plural converters

Reexamination Certificate

active

08044538

ABSTRACT:
A photovoltaic energy conversion system includes a distributed control structure for groups of cells of each multi-cellular panel, the components of which are entirely physically integrated in the photovoltaic panel. Each multi-cellular photovoltaic panel has a DC bus, supplied in parallel by a plurality of DC-DC converters, each provided with a controller that controls the working point of the photovoltaic cells coupled to the input of the DC-DC converter for a maximum yield of electric power by implementing a relatively simple MPPT algorithm. The controller includes a logic circuit and A/D converters of analog signals representing the input voltage and the input current generated by the group of cells that is coupled to the input of the DC-DC converter and optionally also of the output voltage of the converter, and a relatively simple D/A converter of the drive control signal of the power switch of the DC-DC converter.

REFERENCES:
patent: 2008/0150366 (2008-06-01), Adest et al.
patent: 2010/0038968 (2010-02-01), Ledenev et al.

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