System and method of determining maximum power point...

Electrical transmission or interconnection systems – Plural supply circuits or sources – Diverse or unlike electrical characteristics

Reexamination Certificate

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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.

REFERENCES:
patent: 5923100 (1999-07-01), Lukens et al.
patent: 7042195 (2006-05-01), Tsunetsugu et al.
patent: 7193872 (2007-03-01), Siri
patent: 7324361 (2008-01-01), Siri
patent: 2008/0036440 (2008-02-01), Garmer
patent: WO-2008000282 (2008-01-01), None
International Search Report and Written Opinion for International Application No. PCT/US2009/064074, Mail Date Feb. 3, 2010, 8 pages.
Esram et al., “Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques,” IEEE Transactions on Energy Conversion, vol. 22, No. 2, Jun. 2007, 11 pages.
Esram et al., “Dynamic Maximum Power Point Tracking of Photovoltaic Arrays Using Ripple Correlation Control,” IEEE Transactions on Power Electronics, vol. 21, No. 5, Sep. 2006, 10 pages.
Femia et al., “Optimization of Perturb and Observe Maximum Power Point Tracking Method,” IEEE Transactions on Power Electronics, vol. 20, No. 4, Jul. 2005, 11 pages.
Hua et al., “Implementation of a DSP-Controlled Photovoltaic System with Peak Power Tracking,” IEEE Transactions on Industrial Electronics, vol. 45, No. 1, Feb. 1998, 9 pages.
Jain et al., “A New Algorithm for Rapid Tracking of Approximate Maximum Power Point in Photovoltaic Systems,” IEEE Power Electronics Letters, vol. 2, No. 1, Mar. 2004, 4 pages.
Leyva et al., “MPPT of Photovoltaic Systems using Extremum-Seeking Control,” IEEE Transactions on Aerospace and Electronic Systems, vol. 42, No. 1, Jan. 2006, 10 pages.
Masoum et al., “Theoretical and Experimental Analyses of Photovoltaic Systems with Voltage- and Current-Based Maximum Power-Point Tracking,” IEEE Transactions on Energy Conversion, vol. 17, No. 4, Dec. 2002, 9 pages.
Mutoh et al., “A Method for MPPT Control While Searching for Parameters Corresponding to Weather Conditions for PV Generation Systems,” IEEE Transactions on Industrial Electronics, vol. 53, No. 4, Aug. 2006, 11 pages.
Veerachary et al., “Feedforward Maximum Power Point Tracking of PV Systems Using Fuzzy Controller,” IEEE Transactions on Aerospace and Electronic Systems, vol. 38, No. 3, Jul. 2002, 13 pages.
Xiao et al., “Real-Time Identification of Optimal Operating Points in Photovoltaic Power Systems,” IEEE Transactions on Industrial Electronics, vol. 53, No. 4, Aug. 2006, 10 pages.

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