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Title:
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Global MPPT scheme for photovoltaic string inverters based on restricted voltage window search algorithm
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Author:
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Boztepe, Mutlu; Guinjoan Gispert, Francisco; Velasco Quesada, Guillermo; Silvestre Bergés, Santiago; Chouder, Aissa; Karatepe, Engin
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits; Universitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies |
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Abstract:
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String inverter photovoltaic (PV) systems with bypass diodes require improved global maximum power point tracking (GMPPT) algorithms to effectively reach the absolute maximum power operating point. Several GMPPT algorithms have been proposed to deal with this problem, but most of them require scanning wide voltage ranges of the PV array from nearly zero voltage to open-circuit voltage that increases the scanning time and, in turn, causes energy loss. This paper presents a novel GMPPT method which significantly restricts the voltage window search range and tracks the global power peak rapidly in all shading conditions. Simulation tests and experimental comparisons with another GMPPT algorithm are presented to highlight the features of the presented approach. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica
-Photovoltaic power generation.
-Maximum power point (MPP) tracking (MPPT)
-partial shading
-photovoltaic (PV) power systems
-string inverters
-POWER POINT TRACKING
-SHADED INSOLATION CONDITIONS
-GRID-CONNECTED INVERTERS
-PV SYSTEMS
-ARRAY
-MODULES
-CONVERTER
-MODEL
-COMPENSATION
-CONTROLLER
-Energia fotovoltaica
-Energia solar |
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Rights:
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Document type:
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Article - Published version
Article |
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Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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