Search results for "partial shading"

showing 5 items of 5 documents

Reconfigurable electrical interconnection strategies for photovoltaic arrays: A review

2014

Non-uniform irradiance significantly decreases the power delivered by solar photovoltaic arrays. A promising technique for compensating these power losses relies on dynamically reconfiguring the electrical connections between photovoltaic modules. This paper presents the current state-of-the-art strategies for photovoltaic array reconfiguration in order to increase the power output under partial shading and mismatch conditions. The different approaches have been compared in terms of effectiveness of the control algorithms, monitored electrical and environmental variables, overall hardware complexity and specific features of each solution. Finally, the most challenging aspects of the reconfi…

InterconnectionEngineeringRenewable Energy Sustainability and the Environmentbusiness.industryReconfiguration algorithmPhotovoltaic systemMPPTPhotovoltaic arraysControl reconfigurationSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciElectrical mismatchMaximum power point trackingReconfigurable photovoltaic arrayPower (physics)Partial shadingSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaHardware complexityElectronic engineeringTCTPower outputSwitching matrixbusiness
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Technical and economical evaluation on the use of reconfiguration systems in some EU countries for PV plants

2017

This paper shows the technical and economical evaluation of the application of a reconfiguration system for photovoltaic (PV) plants, considering the incentives system in some European Union countries. The reconfiguration system is an alternative to the distributed maximum power point tracking technique which used to increase the power production in the PV plants under the mismatch phenomenon. The reconfiguration techniques employ a microprocessor-based or field-programmable gate array-based system that modifies the layout of the PV plant through the change of the connections among modules. After having presented the main features working of the PV reconfiguration system allowing the improv…

EngineeringPartial shading (PS)020209 energy02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciIndustrial and Manufacturing EngineeringMaximum power point trackingGate arrayIncentives policie0202 electrical engineering electronic engineering information engineeringProduction (economics)media_common.cataloged_instancePV system topologyElectrical and Electronic EngineeringEuropean unionPhotovoltaic (PV) power systemmedia_commonMismatch lossebusiness.industryMismatch conditionPhotovoltaic systemControl reconfigurationControl engineeringInvestment (macroeconomics)Reliability engineeringSettore ING-IND/31 - ElettrotecnicaIncentiveControl and Systems EngineeringReconstructionbusinessSettore ING-INF/07 - Misure Elettriche E Elettroniche
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Photovoltaic plant array reconfiguration: Design of a new device

2014

An efficient strategy to improve unequally irradiated PV plants performances is based on the reconfiguration of the connections between the modules. In this paper, an algorithm, for this purpose conceived, is presented. Moreover, the design, realization and finally also the set up of a new reconfiguration system device is fully shown and discussed. The algorithm conceived simulates several possible series-parallel connections under varying irradiation conditions, and determines the optimal modules connection in order to get the maximum output power. In this way, the reconfiguration system may set up the reconfiguration strategy. The reconfiguration system prototype set up, basically consist…

EngineeringMicrocontrollerreconfiguration system devicepower system controlPV power systemSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTVactuation systemtring PV modules irradiation conditionElectricityArduinounequally irradiated PV plant performanceconditioning systemNew devicehomogeneity conditionmismatch effectOperational amplifiermaximum output powernew device designTransducerpartial shading reconfiguration prototypebusiness.industryreconfiguration system prototype set upPhotovoltaic systemArrayControl reconfigurationControl engineeringoptimal module connectionVoltage measurementeries-parallel connection simulationMicrocontrollerphotovoltaic power systemATmega2560 microcontrollerpower system simulationControl systemacquisition systemmodule connection reconfigurationArduino Mega 2560control systembusinessphotovoltaic plant array reconfigurationreconfiguration strategy
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RICONFIGURATORE DELLE CONNESSIONI DI SISTEMI FOTOVOLTAICI SOTTOPOSTI AD OMBREGGIAMENTO PARZIALE

2014

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaPartial shading Reconfigurable photovoltaic array Electrical mismatch.
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Apparato di commutazione

2012

La presente invenzione si riferisce ad un apparato di commutazione per il controllo e l'impostazione della configurazione circuitale dei pannelli di un modulo fotovoltaico.

Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaRiconfigurazione di sistemi fotovoltaicipartial shading reconfigurable photovoltaic array irradiance electrical mismatch optimization reconfiguration algorithm mathematical model TCT SP interconnection dynamic array monitoring solar cell switching matrix MPPT
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