Limiting the power generated by a photovoltaic system

Although photovoltaic (PV) systems are generally based on Maximum Power Point Tracking (MPPT), many situations such as stand-alone systems or microgrids increasingly require the PV system to operate below maximum power. The problem here is that the power regulation becomes unstable when the MPP powe...

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Bibliographic Details
Published in2013 10th International Multi-Conference on Systems, Signals and Devices (SSD) pp. 1 - 6
Main Authors Urtasun, Andoni, Sanchis, Pablo, Marroyo, Luis
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2013
Subjects
Arrays
Boost converter
Capacitors
limited power point tracking (LPPT)
Maximum power point trackers
MPPT
photovoltaic power systems
Photovoltaic systems
Simulation
Switches
Voltage control
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ISBN9781467364591
1467364592
DOI10.1109/SSD.2013.6564069

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Summary:Although photovoltaic (PV) systems are generally based on Maximum Power Point Tracking (MPPT), many situations such as stand-alone systems or microgrids increasingly require the PV system to operate below maximum power. The problem here is that the power regulation becomes unstable when the MPP power is lower than the reference power as a result of a decrease in irradiance. This paper proposes a control strategy for a DC/DC boost converter that makes it possible to operate in both modes: at either maximum or limited power point tracking. Simulation results validate the control, showing high dynamics and confirming that the system stability is guaranteed for any situation.
ISBN:9781467364591
1467364592
DOI:10.1109/SSD.2013.6564069