Search results for " modulation techniques"

showing 4 items of 4 documents

Experimental Validation of Maximum Constant Boost Control and Switching Frequency Optimal for three-phase Quasi-Z-Source Converters

2020

This paper presents a modified modulation scheme for quasi-Z-Source converters, based on the Maximum Constant Boost Control (MCBC) concept and Switching Frequency Optimal (SFO) as reference signal. The effectiveness of the proposed technique is validated by comparing the obtained results (in terms of AC harmonic content and voltage stress) with those carried out from traditional modulation schemes. For this reason, a test bench has been assembled and the benefits of the SFO MCBC modulation scheme have been valuated.

voltage stressTest benchQuasi-Z-source InverterSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciConvertersSignalSettore ING-IND/31 - ElettrotecnicaharmonicThree-phaseModulationControl theorymodulation techniqueHarmonicsHarmonicharmonics modulation techniques Quasi-Z-source Inverter voltage stressMathematicsVoltage2020 2nd IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)
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Performance Comparison of modified modulation Techniques for Quasi-Z-Source Converters

2020

The single-stage converters represent an innovation in the field of power electronics thanks their features. Aim of this work consists in the improvement of the performances of quasi-Z-Source converters by adopting a modified modulation technique, which is based on the Maximum Constant Boost Control (MCBC) and Switching Frequency Optimal (SFO). The results in terms of voltage stress and harmonic content are compared with those obtained with conventional techniques, demonstrating the effectiveness of the proposed modulation scheme.

Quasi-Z-source Inverter modulation techniques harmonics voltage stress.Computer science020209 energy020208 electrical & electronic engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciConvertersStress (mechanics)Settore ING-IND/31 - ElettrotecnicaModulationHarmonicsPower electronics0202 electrical engineering electronic engineering information engineeringHarmonicElectronic engineeringConstant (mathematics)Voltage2020 IEEE 20th Mediterranean Electrotechnical Conference ( MELECON)
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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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Experimental Evaluation of the Performance of a Three-Phase Five-Level Cascaded H-Bridge Inverter by Means FPGA-Based Control Board for Grid Connecte…

2018

Over the last decades, plants devoted to the generation of green energy significantly increased their number, together with the demand of same electrical energy, also stored in battery systems. This fact produced the growth of energy conversion systems with advanced performances with respect to the traditional ones. In this circumstance, multilevel converters play a significant role for their great advantages in performances, flexibility, fault-tolerability, employment of renewable energy sources and storage systems and finally yet importantly reduced filter requirements. In this context, this paper faces the performance of a cascaded H-bridge 5 level inverter in terms of harmonic distortio…

Battery (electricity)Control and OptimizationComputer science020209 energyCascaded H-bridge multilevel inverter (CHBMI); field-programmable gate array; total harmonic distortion (THD); modulation techniquesEnergy Engineering and Power Technology02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricilcsh:TechnologyModulation techniquemodulation techniquesCascadedH-bridgemultilevel inverter (CHBMI)0202 electrical engineering electronic engineering information engineeringElectronic engineeringEnergy transformationElectrical and Electronic EngineeringField-programmable gate arrayEngineering (miscellaneous)Total harmonic distortionTotal harmonic distortion (THD)business.industrylcsh:TRenewable Energy Sustainability and the EnvironmentElectric potential energyFilter (signal processing)Cascaded H-bridge multilevel inverter (CHBMI)Renewable energyField-programmable gate arraySettore ING-IND/31 - ElettrotecnicaThree-phaseModulationHarmonicsInverterbusinessPulse-width modulationEnergy (miscellaneous)Energies; Volume 11; Issue 12; Pages: 3298
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