Search results for "Soft switching"

showing 3 items of 3 documents

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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Innovative Computational Approach to Harmonic Mitigation for Seven-level Cascaded H-Bridge Inverters

2020

Low frequency modulation strategies are a good solution to increase the energy conversion efficiency in high power applications. The paper is devoted to presents an innovative way to low order harmonics mitigation for seven-level Cascaded H-Bridge Inverters. In particular, this approach is based on the mitigation of selected harmonics without solve non-linear equations for an extended range of the fundamental amplitude. In fact, in real-Time operation to evaluate the control angles the polynomial equations have been identified. Through circuit simulation analysis in MatLab/PLECS environment, the effectiveness of the harmonic mitigation method has been tested and compared with theoretical re…

PolynomialComputer science020209 energy020208 electrical & electronic engineeringEnergy conversion efficiencyElectrical Drive02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciH bridgePower (physics)Settore ING-IND/31 - ElettrotecnicaAmplitudeHarmonics0202 electrical engineering electronic engineering information engineeringElectronic engineeringRange (statistics)Selective Harmonic MitigationMATLABCascaded H-Bridge InverterscomputerSoft Switching Modulation Techniquescomputer.programming_language2020 Fifteenth International Conference on Ecological Vehicles and Renewable Energies (EVER)
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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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