Search results for " Macchine E Azionamenti Elettrici"

showing 10 items of 466 documents

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)
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Sliding mode torque control of an induction motor for automotive application with sliding mode flux observer

2016

In this paper, the performance of two control systems of induction motors for automotive applications were compared in order to highlight the differences in terms of response speed, robustness and noise immunity. The first system is realized through a field-oriented control with PI controllers, while the second system is realized through a field-oriented control with Sliding Mode Controllers. Both controls are designed to follow the torque references as required for the vehicles and are tested with typical load profiles of vehicles. It also designed a sliding mode observer flux.

EngineeringSliding mode controlNoise immunityRenewable Energy Sustainability and the Environmentbusiness.industry020209 energyIncution motorAutomotive industryEnergy Engineering and Power Technology02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciField oriented controlFlux observerRobustness (computer science)Control theoryControl system0202 electrical engineering electronic engineering information engineeringTorqueState observerFlux observerbusinessInduction motor2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA)
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Interior permanent magnet synchronous motors: Impact of the variability of the parameters on their efficiency

2016

In the scientific literature, various authors presented different control strategies aimed to increase the efficiency of the interior permanent magnet synchronous motors. These strategies, starting from a well-known mathematical model of the dynamic behaviour of the motor, are able to reduce the power losses acting on the magnetizing component of the stator current. However, none of the proposed approaches takes into account that, varying the working conditions of the motor, also the values of the parameters, which have an impact on the power losses, can vary. In this paper, therefore, starting from an accurate measurement of the motor characteristics for various values of speed and load, w…

EngineeringStatorEnergy Engineering and Power Technology02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici01 natural sciencesElectrical motor speed control strategielaw.inventionQuantitative Biology::Subcellular ProcessesControl theorylawComponent (UML)0103 physical sciences0202 electrical engineering electronic engineering information engineering010302 applied physicsMotor powerPermanent magnet synchronous motorbusiness.industryRenewable Energy Sustainability and the Environment020208 electrical & electronic engineeringControl engineeringPower (physics)IPMSMSettore ING-IND/31 - ElettrotecnicaEfficiency increaseReduction (mathematics)business
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A cogging torque minimization procedure for IPMSMs based on different laminate geometry

2016

This paper presents a possible minimization procedure of the cogging torque generated by an IPMSM (Interior Permanent Magnet Synchronous Machine) with a progressive modification of a basic geometrical structure of rotor laminates. More in detail, an IPMSM model is analyzed by using a Finite Element Method (FEM) approach. Then, other IPMSM models, which are obtained by modifying the geometry of the IPMSM rotor laminates and by maintaining the same stator configuration, are proposed and discussed. From the obtained simulation results, the cogging torque components for each structure are determined by means of FEM and compared to each other. From this comparison, it can be stated that the cogg…

EngineeringStatorGeometry02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici01 natural scienceslaw.inventionlaw0103 physical sciences0202 electrical engineering electronic engineering information engineeringFEM analysi010302 applied physicsRotor (electric)business.industry020208 electrical & electronic engineeringpermanent magnetsCogging torqueCogging torqueFinite element methodIPMSMSettore ING-IND/31 - ElettrotecnicaQuantitative Biology::Quantitative MethodsMagnetMinificationbusinessPermanent magnet synchronous machine2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER)
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Piezoelectric Rainfall Energy Harvester Performance by an Advanced Arduino-Based Measuring System

2018

This paper presents the performances of rainfall energy harvesting through the use of a piezoelectric transducer and an Arduino-based measuring system. Different studies agree on the possibility of generating electricity from rainfall, but to date, a study on measuring the quantity of energy produced during rainfall is still missing. The present study begins with results obtained from laboratory researchers using piezoelectric transducers and oscilloscopes, finalized to measure the energy produced from a single raindrop, and concludes with an ad hoc Arduino-based measuring system, aimed to measure the actual amount of electrical energy produced by a piezoelectric transducer that is exposed …

EngineeringStreRain02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPiezoelectric materialSettore ING-INF/01 - Elettronica01 natural sciencesIndustrial and Manufacturing EngineeringAutomotive engineeringEnergy measurementpiezoelectric sensorArduino0103 physical sciencesEnergy harvesting; Energy measurement; Piezoelectric materials; piezoelectric sensor; Piezoelectric transducers; Rain; Stress; Control and Systems Engineering; Industrial and Manufacturing Engineering; Electrical and Electronic EngineeringElectrical and Electronic EngineeringOscilloscope010302 applied physicsEnergy harvestingbusiness.industryElectric potential energyElectrical engineeringPiezoelectric transducer021001 nanoscience & nanotechnologyPiezoelectricitySettore ING-IND/31 - ElettrotecnicaElectricity generationTransducerControl and Systems Engineering0210 nano-technologybusinessEnergy harvestingEnergy (signal processing)IEEE Transactions on Industry Applications
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Design issues for wind farms grid tied Inverter

2017

In this paper the Authors give indications for the design of a grid tied Voltage Source Inverters (VSI) aimed to optimal use in energy conversion from wind source. In particular, the design of the inverter is more focused on the control system planning, with a particular glance on the grid synchronization problem. After the exposition of general issues concerning renewable energies and associated topics, the case of a grid tied inverter is considered and a methodology of design is sketched starting from the consideration of the DC side and also considering the power device losses, the protection issue against over voltages and over-currents, snubber circuits, heat sinks and, finally the con…

EngineeringSustainability and the Environmentbusiness.industry020209 energy020208 electrical & electronic engineeringElectrical engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciGridwind farms inverter design control systemPower (physics)Renewable energyRenewable Energy Sustainability and the Environment; Automotive Engineering; Electrical and Electronic EngineeringSettore ING-IND/33 - Sistemi Elettrici per L'EnergiaControl systemAutomotive Engineering0202 electrical engineering electronic engineering information engineeringElectronic engineeringSnubberEnergy transformationInverterRenewable EnergyVoltage sourceElectrical and Electronic Engineeringbusiness2017 Twelfth International Conference on Ecological Vehicles and Renewable Energies (EVER)
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Controlled Fault-Tolerant Power Converters for Power Quality Enhancement

2013

Power quality depends generally on the interaction of electrical power with electrical equipments. If electrical equipments operate correctly and reliably without being damaged or stressed, a suitable level of power quality is assured. On the other hand, if the electrical equipment malfunctions, is unreliable, or is damaged during normal usage, power quality is poor and probably the economical loss could be important like the technical one. In the scenario of the Distributed Generation, power quality issues will be moreover important because an higher dissemination of power conditioning equipment will be requested and this obviously increases the sources of vulnerability of the electrical s…

EngineeringSwitched-mode power supplypower supply qualitypower system controlSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPower budgetpower quality enhancementTopologyMaximum power point trackingfault tolerant power converterfuel cellpower supplieElectric power systemMathematical modelpower convertorElectronic engineeringcontrolled fault-tolerant power converterPower-flow studyCircuit faulthybrid power systemdistributed generationFault tolerant systembusiness.industryFault toleranceReliability engineeringPower ratingBase load power plantPower qualityModeling and Simulationpower conditioning equipmentElectric powerVectorbusinessfault tolerance;power convertors;power supply quality;controlled fault-tolerant power converters;distributed generation;fault tolerant power converters;power conditioning equipment;power quality enhancement;Circuit faults;Fault tolerance;Fault tolerant systems;Mathematical model;Power quality;Topology;Vectors;fuel cells;hybrid power systems;power supplies;power system control
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Performance comparison of tubular linear induction motors with different primary winding connections

2014

This paper presents an experimental characterization and comparison of the performances achieved by a tubular linear induction motor (TLIM) prototype with different typologies of primary winding connections. In particular, three configurations are described: full-pitch star, 5/6 shortened pitch star and 5/6 shortened pitch double star. For this purpose, an experimental test bench at the SDESLAB laboratory (University of Palermo) has been set-up and the results obtained from the tests have allowed to identify which type of winding configuration can be chosen in dependence of the type of application intended for the motor. In addition, this experimental study is suitable for TLIM winding desi…

EngineeringTLIM winding connections experimental validation harmonicsPrimary (chemistry)business.industryPerformance comparisonLinear induction motorElectrical engineeringMechanical engineeringSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricibusiness2014 International Conference on Electrical Machines (ICEM)
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Experimental study on efficiency enhancement in Interior Permanent Magnet Synchronous machines

2015

This paper presents an experimental study on the efficiency variation occurring in an IPMSM (Interior Permanent Magnet Synchronous Motor) with respect to the direct axis current component and for several working conditions. Such investigation is the starting point for the arrangement of a speed control drive system equipped with a real-time power losses minimization algorithm. More in detail, a test bench is set up to carry out the measurements needed for the final power loss identification. The experimental investigation is developed by performing tests at different speed, magnetization and load conditions. From the obtained results, it can be stated that the IPMSM efficiency can be maximi…

EngineeringTest benchElectronic speed controlbusiness.industryspeed controlPermanent magnet synchronous generatorSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciPower (physics)IPMSMControl theoryEfficiency enhancementMagnetpermanent magnetPoint (geometry)MinificationSynchronous motorbusinesspower loss minimization
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Electrical characterization of CIGSSe photovoltaic modules

2017

This work describes the electrical characterization of CIG(S,Se) 2 sub-modules in order to compare the related performances with those obtained from traditional silicon photovoltaic modules. This characterization has been performed through means of a test bench, mainly composed by a solar simulator equipment, allowing the determination of the parameters of the prototypes under test at different irradiances and temperatures.

EngineeringTest benchSilicon020209 energyPV devicesEnergy Engineering and Power Technologychemistry.chemical_elementMechanical engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTemperature measurementCIGSSe modules; electrical characterization Introduction; PV devices; Energy Engineering and Power Technology; Renewable Energy Sustainability and the EnvironmentCIGSSe module0202 electrical engineering electronic engineering information engineeringRenewable EnergySustainability and the EnvironmentRenewable Energy Sustainability and the Environmentbusiness.industryPhotovoltaic systemPV deviceelectrical characterization IntroductionEngineering physicsCharacterization (materials science)Settore ING-IND/31 - ElettrotecnicaSettore ING-IND/33 - Sistemi Elettrici per L'EnergiachemistryCIGSSe modulesSolar simulatorbusiness2017 6th International Conference on Clean Electrical Power (ICCEP)
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