Search results for "MISURE"

showing 10 items of 496 documents

Economic evaluation of PV system for EV charging stations: Comparison between matching maximum orientation and storage system employment

2016

This article addresses the problem of the choice of a generation system to be implemented to reduce the impact of charging electric vehicles at University. Based on the behaviour of the student population, it is identified the electrical load. Two possible solutions are evaluated in order to manage the peak load: an orientation of the panels in order to increase the power at defined time and the use of storage system. The main strength and weakness points of two systems are investigated by taking into account the Levelized Cost of Energy.

EngineeringMatching (statistics)Electrical load020209 energyEnergy Engineering and Power Technology02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciAutomotive engineering0202 electrical engineering electronic engineering information engineeringRenewable EnergyCost of electricity by sourceCharging; EVs; Photovoltaic; Energy Engineering and Power Technology; Renewable Energy Sustainability and the EnvironmentEVsSustainability and the EnvironmentOrientation (computer vision)business.industryPhotovoltaic systemElectrical engineering020206 networking & telecommunicationsPower (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaComputer data storageEconomic evaluationbusinessPhotovoltaicSettore ING-INF/07 - Misure Elettriche E ElettronicheChargingEV
researchProduct

Measurement Issues for the Characterization of Medium Voltage Grids Communications

2013

This paper is focused on the measurement issues and procedures for the characterization of medium voltage grids for narrowband power line communications (NB-PLCs), in the perspective of the use and integration of such technology into smart grids communication networks. The fundamentals are given for the characterization of the PLC channel, by means of noise and attenuation measurements. Suitable procedures are also developed for the characterization and modeling of the power system components in the frequency range of interest. Furthermore, the complete model of the PLC system is experimentally validated in a real case study.

EngineeringNoise measurementbusiness.industrycommunication equipmentElectrical engineeringNoise (electronics)Attenuation measurementPower (physics)power system communicationElectric power systemNarrowbandSmart gridtesting communication systemspower system measurements.Electronic engineeringElectrical and Electronic EngineeringbusinessAttenuation measurement communication equipment testing communication systems power system communication power system measurementsSettore ING-INF/07 - Misure Elettriche E ElettronicheInstrumentationCommunication channelVoltageIEEE Transactions on Instrumentation and Measurement
researchProduct

CIGS PV Module Characteristic Curves Under Chemical Composition and Thickness Variations

2014

This paper analyzes how the electrical characteristics of a CIGS photovoltaic module are affected by the chemical composition and by the thickness variations of the CIGS absorber. The electrical characteristics here considered are the short circuit current, the open circuit voltage, the efficiency and the power peak. The chemical composition is varied by tuning the ratio between gallium and indium. This analysis has been performed by means of the wxAMPS software, developed by the University of Illinois. The above variations have been taken into account on a PV module made of 72 cells. This analysis has been carried out employing a PV module mathematical model developed and implemented by th…

EngineeringOpen-circuit voltagebusiness.industryPhotovoltaic systemchemistry.chemical_elementSettore ING-INF/02 - Campi ElettromagneticiSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciCopper indium gallium selenide solar cellsPhotovoltaic Modules characterizationSettore ING-INF/01 - ElettronicaPower (physics)CIGS Photovoltaic ModulechemistryElectronic engineeringOptoelectronicsGalliumbusinessMATLABShort circuitcomputerSettore ING-INF/07 - Misure Elettriche E ElettronicheIndiumcomputer.programming_language
researchProduct

A DAQ-based sampling wattmeter for IEEE Std. 1459-2010 powers measurements. Uncertainty evaluation in nonsinusoidal conditions

2015

Abstract This paper presents the evaluation of the metrological performances of a DAQ-based sampling wattmeter (DAQ-SW) for the measurement of IEEE Std. 1459-2010 power quantities in non-sinusoidal conditions. The instrument makes use of two commercial data acquisition (DAQ) boards, a non-inductive current shunt, a personal computer and a commercial software for data processing. Starting from the results of an experimental characterization of the two instrument channels with non-sinusoidal voltages and currents and a correlation analysis, the combined standard uncertainties of IEEE Std. 1459-2010 quantities are evaluated, following the approach of the ISO Guide to the Expression of Uncertai…

EngineeringPC-based instrumentsHarmonic distortionlaw.inventionData acquisitionlawElectronic engineeringElectrical and Electronic EngineeringPower measurements IEEE Std. 1459-2010 Data acquisition Uncertainty Harmonic distortion PC-based instrumentsInstrumentationIEEE Std. 1459-2010Data processingTotal harmonic distortionCommercial softwarebusiness.industryApplied MathematicsElectrical engineeringUncertaintyData acquisitionWattmeterCondensed Matter PhysicsMetrologyPersonal computerMeasurement uncertaintybusinessSettore ING-INF/07 - Misure Elettriche E ElettronichePower measurements
researchProduct

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
researchProduct

On the use of narrow band power line as communication technology for medium and low voltage smart grids

2012

The aim of this work is to perform a feasibility study on the power line communication for the development of a new generation of interface devices (IDs) for smart grid applications. More in detail, this paper deals with one of the most important issues on this topic which is the communication system. Among the existing communication technologies, the study is focused on power line communications (PLCs). After a analysis of the state of the art in the field, the main aspects are analyzed, concerning the open issues on the use of PLCs, especially for medium voltage (MV) and low voltage (LV) systems. In this work the use of PLC in MV-LV networks is investigated, by means of simulations and ex…

EngineeringPower Line Communication (PLC)business.industryactive networksOverhead power lineElectrical engineeringCommunications systemlaw.inventionpower system communicationPower-line communicationSmart gridlawsmart gridsdistributionElectronic engineeringPower Line Communication (PLC) smart grids active networks power system communication distribution networksbusinessTransformerSettore ING-INF/07 - Misure Elettriche E ElettronicheLow voltageVoltageActive networking2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings
researchProduct

Economic benefits of the use of a PV plants reconfiguration systems

2015

This paper shows the economic convenience of the application of a reconfiguration system for photovoltaic plants, considering the incentives system in different Countries. The reconfiguration is an alternative to the Distributed Maximum Power Point Tracking, DMPPT, technique used to overcome the mismatch problem in Photovoltaic, PV, plants. The reconfiguration techniques employ a microprocessor-based system that modifies the layout of the PV plant by physically changing the connections among modules. After having presented the working principle of the PV reconfiguration system allowing the improvement of the efficiency of the same plant and the relevant installation, the main strength and w…

EngineeringRelation (database)business.industryPhotovoltaic systemControl reconfigurationSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciEnvironmental economicsInvestment (macroeconomics)Economic benefitsMaximum power point trackingSettore ING-IND/31 - ElettrotecnicaIncentivePv plantReconfiguration photovoltaic incentives policiesbusinessSettore ING-INF/07 - Misure Elettriche E Elettroniche2015 International Conference on Renewable Energy Research and Applications (ICRERA)
researchProduct

A Low-cost, Real-time Monitoring System for PV Plants based on ATmega 328P-PU Microcontroller

2015

This paper presents a real-time monitoring system for PV power plants based on a microcontroller Atmega328P-PU. The proposed system, whose performances can be relatively close to those achieved with commercial monitoring systems, is simple, low-cost and open source technology-based. In addition, a user interface, capable to communicate through a wireless network by using a standard communication protocol IEEE 802.15.1, is here presented. From the experimental tests described and discussed in this paper it is demonstrated that the proposed monitoring system provides, with adequate accuracy, all the information about the operating status of the PV plant, even during fault conditions.

EngineeringSIMPLE (military communications protocol)business.industryWireless networkMonitoring systemSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciFault (power engineering)MicrocontrollerSettore ING-IND/31 - ElettrotecnicaPV Plant real time monitoringEmbedded systemUser interfacebusinessCommunications protocolSettore ING-INF/07 - Misure Elettriche E ElettronichePv power
researchProduct

PV systems in the vertical walls: A comparison of innovative structures

2016

This paper presents the performance comparison of PV windows with the purpose of tracing the behavior of next-generation systems, which could favor architectonical integration. More in detail, a dye sensitized solar cell (DSSC) and blue and grey thin film silicon panels have been analyzed. The systems can be placed behind a window or behind a wall of glass blocks. The three generation systems are then compared in terms of both efficiency and Fill Factor.

EngineeringSilicon020209 energychemistry.chemical_element02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTracingSettore ING-INF/01 - Elettronica0202 electrical engineering electronic engineering information engineeringDSSCThin filmGreen Energybusiness.industryPhotovoltaic systemElectrical engineeringWindow (computing)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaDye-sensitized solar cellchemistryPerformance comparisonOptoelectronicsFill factorbusinessIntegrated PhotovoltaicSettore ING-INF/07 - Misure Elettriche E ElettronicheSilicon Solar Cells2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA)
researchProduct

Experimental evaluation of an hybrid communication system architecture for smart grid applications

2015

In this paper a new communication system architecture is proposed for the development of a SCADA system which can remotely monitor and control intelligent electronic devices (IEDs) connected to the low voltage distribution networks, i.e low voltage smart meter (SM), interface protection devises (IPS). New distributed metering systems and interface devices, together with a proper communication infrastructure (HiperLAN and narrowband power line communication (NB-PLC) on low voltage network), have been developed to allow monitoring the whole power system and controlling the distributed generators of a Smart Grid also in the presence of harmonic distortions. In this way, the electrical energy d…

EngineeringSmart meterbusiness.industryInterface (computing)Electrical engineeringsmart grids power system communications power line communication smart meter distributed generation interface protection systemsCommunications systemElectric power systemPower-line communicationSmart gridSCADAElectronic engineeringbusinessLow voltageSettore ING-INF/07 - Misure Elettriche E Elettroniche
researchProduct