0000000000677148

AUTHOR

Maria Gabriella Cimoroni

showing 4 related works from this author

Graphical THD minimization procedure for single phase five-level converters

2017

This paper proposes two graphycal procedure to mitigate h harmonics and to minimize the total harmonic distortion (THD), respectively. The paper considers a five-level inverter and fundamental frequency modulation: it computes the two switching angles able to reduce low order harmonics and able to minimize the THD. Simulation results are obtained and, in order to validate the proposed procedure, an experimental prototype is built and experimental results are carried out. The comparison between simulation and experimental results confirms the accuracy of the proposed graphycal procedure. It is shown that the switching angles to mitigate the third-fifth and the third-fifth-seventh harmonics e…

Graphycal Procedure; Grid Codes; Harmonics Mitigation; Multilevel Inverters; Total Harmonic Distortion (THD); Electrical and Electronic Engineering; Control and Systems EngineeringGraphycal ProcedureTotal harmonic distortionEngineeringbusiness.industryTotal Harmonic Distortion (THD)020208 electrical & electronic engineeringModulation indexGrid Codes02 engineering and technologyFundamental frequencyElectronic mailHarmonic analysisHarmonics MitigationMultilevel InvertersControl and Systems EngineeringControl theoryHarmonics0202 electrical engineering electronic engineering information engineeringHarmonicElectronic engineeringInverterElectrical and Electronic Engineeringbusiness2017 IEEE 26th International Symposium on Industrial Electronics (ISIE)
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Recursive Selective Harmonic Elimination for Multilevel Inverters: Mathematical Formulation and Experimental Validation

2023

A recursive method that eliminates +1 harmonics and their respective multiples from the output voltage of a cascaded H-bridge multilevel inverters with = 2 dc sources ( = 1, 2, 3,...) is proposed. It solves 2×2 linear systems with not singular matrices and always gives an exact solution with very low computational effort. Simulated results in three-phase five, nine, seventeen and thirty three level CHB inverters, and experimental results in five-level inverter demonstrate the validity of the method.

ModulationTotal Harmonic Distortion (THD)Multilevel InverterSelective Harmonics EliminationEnergy Engineering and Power TechnologyEfficiencySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciElectrical and Electronic EngineeringMultilevel Inverter Modulation Selective Harmonics Elimination Total Harmonic Distortion (THD) EfficiencyIEEE Journal of Emerging and Selected Topics in Power Electronics
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A 9-level three-phase multilevel converter with harmonic mitigation and integrated battery balancing

2019

In this paper, a 9 level three-phase multilevel converter with a harmonic mitigation control method and an integrated battery balancing algorithm for automotive purpose is proposed. Each level of the converter is composed by a buck-boost converter and an h-bridge in cascaded connection. The control algorithm is implemented to achieve the harmonic mitigation on the output voltage waveform and to maintain the battery input voltages balanced. The design and operation of the system is described, and simulation study is reported using Matlab/Simulink platform.

Battery (electricity)Multilevel Inverters; Total Harmonic Distortion (THD); DC-AC conversionSelective Harmonic Mitigation (SHM); Selective Harmonic Elimination (SHE); cell balancingComputer science020209 energyAutomotive industry02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciSelective Harmonic Mitigation (SHM)Multilevel InvertersMultilevel Inverter0202 electrical engineering electronic engineering information engineeringElectronic engineeringWaveformMATLABcomputer.programming_languageSelective Harmonic Elimination (SHE)business.industryTotal Harmonic Distortion (THD)020208 electrical & electronic engineeringHarmonic mitigationcell balancingDC-AC conversionSelective Harmonic Mitigation (SHM)DC-AC conversionSettore ING-IND/31 - ElettrotecnicaThree-phasebusinesscomputerControl methodsVoltage
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Harmonic reduction in CHB 13-level inverters by PAM fundamental-frequency strategy

2019

In this paper cascaded H-bridges (CHB) 13-level inverters are considered and a particular pulse amplitude modulation (PAM) strategy is introduced to mitigate or eliminate many harmonic components on the output voltage, in order to obtain low Total Harmonic Distortion (THD) factor. This procedure defines different dc voltage sources and sets of six switching angles, depending on an integer parameter $q$ belonging to the close interval $I=[11, 15]$ . The obtained THD doesn't depend on modulation index $m$ . The control of $m$ is made by changing the dc voltage sources that depend linearly on m, while the switching angles remain constant. An investigation about the role of the $q$ parameter on…

PhysicsTotal harmonic distortionTotal Harmonic Distortion (THD)Pulse Amplitude Modulation (PAM)Modulation indexGrid CodesFundamental frequencySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTopologySettore ING-INF/01 - ElettronicaPulse Amplitude Modulation (PAM); Selective Harmonic Mitigation (SHM); Selective Harmonic Elimination (SHE); Total Harmonic Distortion (THD); Grid CodesSettore ING-IND/31 - ElettrotecnicaSelective Harmonic Mitigation (SHM)Pulse-amplitude modulationGrid CodeHarmonicsHarmonicInverterVoltageSelective Harmonic Elimination (SHE)
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