Search results for "Multilevel Power"

showing 10 items of 12 documents

Experimental Evaluation of Dead-Time Impacts on the Efficiency and THD for a Three-Phase Five-Level Cascaded H-Bridge Inverter

2022

Cascaded H-Bridges Multilevel Inverter (CHBMI) is a fascinating solution for optimization purposes in several application fields. The CHBMI performance optimization can be reached both with hardware and software solutions. In detail, the CHBMI performances are a function of the modulation strategy adopted and its parameters such as modulation index, switching frequency, and dead time. This paper presents performance experimental analysis on dead time effects on CHBMI performance in terms of harmonic distortion and conversion efficiency. In this analysis, two different modulation strategies have been considered and implemented. The paper focuses on modulation strategies implemented, the test…

CHBMISettore ING-IND/31 - ElettrotecnicaDead-Time; Efficiency; THD; Multilevel power inverter; CHBMI; Multicarrier PWMMulticarrier PWMTHDCHBMI Dead-Time Efficiency Multicarrier PWM Multilevel power inverter THDMultilevel power inverterDead-TimeEfficiencySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici
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Simulation of a single-phase five-level cascaded H-Bridge inverter with multicarrier SPWM B-Spline based modulation techniques

2017

Multilevel Power Inverters are now often used to convert DC to AC voltage waveform. This kind of converter allows high power quality with low output harmonics and lower commutation losses with respect to the traditional ones in order to optimize this aspect. This paper presents a novel simulation analysis of the Multicarrier Sinusoidal Pulse Width Modulation (MC SPWM) techniques B-Spline functions based to control the switches of five-level single-phase cascaded H-bridge inverter. In order to verify the performance of the converter, the harmonic content of the voltage due to modulation techniques has been taken into account. Results highlight the comparison between different B-Spline functi…

Engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici01 natural sciences010309 optics0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectronic engineeringMultilevel power converterWaveformCommutationElectrical and Electronic EngineeringRenewable Energy Sustainability and the Environmentbusiness.industryB-spline function020208 electrical & electronic engineeringMulticarrier modulation techniquePower (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaModulationHarmonicsAutomotive EngineeringHarmonicInverterbusinessPulse-width modulation2017 Twelfth International Conference on Ecological Vehicles and Renewable Energies (EVER)
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New approach for harmonic mitigation in single-phase five-level CHBMI with fundamental frequency switching

2017

The main objective of this paper is to study and analyse the voltage output waveform of a multilevel inverter, to suggest a new approach for harmonic mitigation improving the converter performance. These last type of converters represent a new technology in the field of DC/AC electrical energy conversion, presenting advantages respect to the traditional converters. In fact, the multilevel power converters present a low harmonic content and a high voltage level. The paper considers a five-level single-phase cascaded H-bridge inverter and fundamental frequency modulation techniques. The voltage waveform analysis has allowed to identify a working area of the converter where there are lowest va…

Engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici01 natural sciences010309 optics0103 physical sciences0202 electrical engineering electronic engineering information engineeringElectronic engineeringWaveformRenewable EnergyElectrical and Electronic EngineeringMultilevel Power ConverterMultilevel Power Converter; Phase Shifted Voltage Cancellation; Soft switching; Renewable Energy Sustainability and the Environment; Automotive Engineering; Electrical and Electronic EngineeringSustainability and the Environmentbusiness.industryRenewable Energy Sustainability and the Environment020208 electrical & electronic engineeringElectrical engineeringFundamental frequencyConvertersSoft switchingPower (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaPhase Shifted Voltage CancellationModulationAutomotive EngineeringHarmonicInverterbusinessVoltage
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Experimental analysis with FPGA controller-based of MC PWM techniques for three-phase five level cascaded H-bridge for PV applications

2016

The FPGA represents a valid solution for the design of control systems for inverters adopted in the field of PV systems because of their high flexibility of use. This paper presents an experimental analysis of the MC SPWM techniques for a three-phase, five-level, cascaded H-Bridge inverter with FPGA controller-based. Several control algorithms are implemented by means of the VHDL programming language and the output voltage waveforms obtained from the main PWM techniques are compared in terms of THD%. Simulation and experimental results are analysed, compared and discussed.

Engineering020209 energyEnergy Engineering and Power Technology02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciGrid connectedControl theoryVHDL0202 electrical engineering electronic engineering information engineeringElectronic engineeringMultilevel power converterRenewable EnergyField-programmable gate arrayFPGAcomputer.programming_languageTotal harmonic distortionSustainability and the EnvironmentRenewable Energy Sustainability and the Environmentbusiness.industry020208 electrical & electronic engineeringH bridgeSettore ING-IND/31 - ElettrotecnicaControl systemInverterVHDLbusinessFPGA; Grid connected; Multilevel power converter; Photovoltaic; VHDL; Energy Engineering and Power Technology; Renewable Energy Sustainability and the EnvironmentPhotovoltaiccomputerPulse-width modulation2016 IEEE International Conference on Renewable Energy Research and Applications (ICRERA)
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Multilevel Power Relations and Planning Conflicts in a ‘Land of Exception’: The Case of the Sughereta di Niscemi Reserve in Sicily

2019

This article aims to investigate how the asymmetrical (political and economic) power relations can influence the effectiveness of planning systems at the local governance level, producing conflicting forms between land transformation and protection of natural interest sites. The article demonstrates how this condition can generate severe forms of environmental and social injustice through the case study of the M.U.O.S. of Niscemi (Mobile User Objective System). M.U.O.S. of Niscemi is a ground station for military communications satellite system, constructed by the United States Navy (Department of Defense) in Zone B of the natural reserve of "Sughereta di Niscemi" (the most relevant relict …

Multilevel PowerPlanning ConflictSettore ICAR/20 - Tecnica E Pianificazione Urbanisticastate of ExceptionSettore ICAR/21 - UrbanisticaSicily
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Simulation and experimental validation of multicarrier PWM techniques for three-phase five-level cascaded H-bridge with FPGA controller

2017

The FPGA represents a valid solution for the design and implementation of control systems for inverters adopted in many fields of power electronics because of its high flexibility of use. This paper presents an overview and an experimental validation of the MC SPWM techniques for a three-phase, five-level, cascaded H-Bridge inverter with FPGA controller-based. Several control algorithms are here implemented by means of the VHDL programming language and the output voltage waveforms obtained from the main PWM techniques are compared in terms of THD%. Simulation and experimental results are analyzed, compared and discussed.

PV systemsGrid connectedSettore ING-IND/31 - ElettrotecnicaFPGA; Grid connected; Multilevel Power Converter; PV systems; VHDLRenewable Energy Sustainability and the EnvironmentEnergy Engineering and Power TechnologyVHDLSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciFPGAMultilevel Power ConverterPV system
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Performances of a three-phase five-level cascaded H-bridge inverter with phase shifted B-spline based modulation techniques

2017

This paper presents a novel study of the performances of a five-level three-phase Cascaded H-Bridge Multilevel Inverter with Phase Shifted B-Spline based modulation techniques. The study has been focused on the use of B-Spline functions as carrier signals in order to evaluate the performances of the converter in terms of harmonic content on the output voltage. In the first step of this analysis the THD% has been taken into account to compare the voltage waveforms. Interesting results have been found on the fundamental amplitude of the phase and line voltage. Moreover, harmonic spectra has been compared to evaluate the different harmonic distribution in the voltage waveforms. In this work th…

PhysicsTotal harmonic distortionRenewable Energy Sustainability and the EnvironmentB-spline function020209 energy020208 electrical & electronic engineeringPhase (waves)Energy Engineering and Power Technology02 engineering and technologyMulticarrier modulation techniqueSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTopologyThree-phaseModulation0202 electrical engineering electronic engineering information engineeringHarmonicMultilevel power converterWaveformHarmonic distributionVoltage
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A Novel Computational Approach for Harmonic Mitigation in PV Systems with Single-Phase Five-Level CHBMI

2018

In this paper, a novel approach to low order harmonic mitigation in fundamental switching frequency modulation is proposed for high power photovoltaic (PV) applications, without trying to solve the cumbersome non-linear transcendental equations. The proposed method allows for mitigation of the first-five harmonics (third, fifth, seventh, ninth, and eleventh harmonics), to reduce the complexity of the required procedure and to allocate few computational resource in the Field Programmable Gate Array (FPGA) based control board. Therefore, the voltage waveform taken into account is different respect traditional voltage waveform. The same concept, known as “voltage cancelation”, used for single-…

PolynomialControl and OptimizationTranscendental equationComputer science020209 energyEnergy Engineering and Power Technologysoft switching02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciComputational resourcelcsh:Technology7. Clean energyselective harmonic mitigationmultilevel power converter0202 electrical engineering electronic engineering information engineeringElectronic engineeringWaveformElectrical and Electronic EngineeringEngineering (miscellaneous)Photovoltaic systemlcsh:TRenewable Energy Sustainability and the EnvironmentPhotovoltaic systemPower (physics)phase shiftedSettore ING-IND/31 - ElettrotecnicaHarmonicsphotovoltaic systemsvoltage cancellationEnergy (miscellaneous)VoltageEnergies
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Switching Frequency Effects on the Efficiency and Harmonic Distortion in a Three-Phase Five-Level CHBMI Prototype with Multicarrier PWM Schemes: Expe…

2022

The current climatic scenario requires the use of innovative solutions to increase the production of electricity from renewable energy sources. Multilevel Power Inverters are a promising solution to improve the penetration of renewable energy sources into the electrical grid. Moreover, the performance of MPIs is a function of the modulation strategy employed and of its features (modulation index and switching frequency). This paper presents an extended and experimental analysis of three-phase five-level Cascaded H-Bridges Multilevel Inverter performance in terms of efficiency and harmonic content considering several MC PWM modulation strategies. In detail, the CHBMI performance is analyzed …

TechnologyControl and OptimizationRenewable Energy Sustainability and the EnvironmentTmulticarrier PWMEnergy Engineering and Power TechnologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciCHBMI FPGA Multicarrier PWM Multilevel power inverter SbRIO-9651CHBMIsbRIO-9651multilevel power inverter; CHBMI; multicarrier PWM; sbRIO-9651; FPGAElectrical and Electronic Engineeringmultilevel power inverterEngineering (miscellaneous)FPGAEnergy (miscellaneous)
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Implementation on NI-SOM sbRIO-9651 and Experimental Validation of Multi-Carrier PWM Techniques for Three-Phase Five Level Cascaded H-Bridge Inverter

2021

Multilevel Power Inverters (MPIs) represent a valid solution to improve the performances of energy production systems from renewable energy sources. Furthermore, the use of novel FPGA control systems allows simplifying the implementation of multicarrier PWM techniques for MPIs with computational benefits. This paper describes the implementation of several multicarrier PWM techniques on NI-SOM sbRIO-9651 for the control of a three-phase five-level cascaded H-bridge inverter. In detail, sbRIO-9651 is a control system in the field of Power Electronics and Drives (PED) programmable in the LabVIEW graphical programming environment. The paper is focused on modulation techniques implementation, te…

Three-phaseComputer scienceFPGA Labview Multicarrier PWM techniques Multilevel power converter sbRIO-9651Control systemPower electronicsElectronic engineeringInverterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciField-programmable gate arrayEnergy (signal processing)Pulse-width modulationPower (physics)
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