Analyzing Input Harmonic Currents of a Six-pulse AC/DC Converter by an Efficient Time-domain Approach

Chang, G.W.; Chin, Y.C.; Lee, S.H.

doi:10.1109/iciea.2006.257108

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…These harmonics can lead to supplementary losses, overheating, and disturbances. To compute the harmonics, an approach commonly used is the time domain simulation combined with FFT analysis (Chang et al, 2006). This approach is easy for modeling purposes and is integrated in simulation softwares such as Psim, Pspice.…”

Section: Introductionmentioning

confidence: 99%

Analytical frequency modeling of a diode rectifier: formulation for SQP solving versus formulation for Newton-Raphson solving

Tran¹,

Gerbaud²,

Rétière³

et al. 2016

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose Static converters generate current harmonics in grids. Numerous studies on analytical frequency models of converters are often required to carry out their harmonic modeling in the context of sizing by optimization. Some formulations are proposed to solve such models. Each formulation has its own advantages and drawbacks. The paper mainly focuses on two formulations: the first to be solved by Sequential Quadratic Programming (SQP) and the second to be solved by Newton-Raphson (NR). In this way, the paper presents the performances of each formulation and compares the results of both formulations for the modeling of a single-phase diode rectifier. Design/methodology/approach The paper aims to compare SQP formulation and NR formulation, and to propose the ways to improve their convergence. In the modeling, by using an explicit formulation of the state variables combined to a numerical method, equations are defined to reduce, as far as possible, the number of unknowns. Findings The difficulty is to find the good operating mode of the static converter. So, outside the equations and the constraints, the paper proposes to use the eigenvalues of the state space matrixes to initialize the duration of every configuration and to consider the operating symmetries of the static converter that allow to reduce the research area and also the variables calculated. Research limitations/implications The number of the conducting phase per half period is a priori, as the operating mode. Originality/value The modeling is based on the use of linear components, ideal switches and the static converter operates in steady-state. The main difficulties are to formulate the equations representing the non-controlled switching of semiconductors, and to solve them.

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Section: Introductionmentioning

confidence: 99%

Analytical frequency modeling of a diode rectifier: formulation for SQP solving versus formulation for Newton-Raphson solving

Tran¹,

Gerbaud²,

Rétière³

et al. 2016

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

View full text Add to dashboard Cite

show abstract

“…Numerical time simulation combined with FFT analysis can be used to calculate harmonics generated by power electronics converters [2]. This approach can be simply applied for modeling purposes and many algorithms have been developed to improve the quality of the results and to speed up the convergence [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Analytical modeling of static converters for optimal sizing of on-board electrical systems

Hieu

Gerbaud

Rétière

et al. 2010

2010 IEEE Vehicle Power and Propulsion Conference

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Power electronics converters can generate a high level of harmonic perturbations on on-board electrical systems (planes, ships, road vehicles…). For the optimal sizing of these systems, harmonics must be known to select the best components (generator, filter…) that will limit their effects. In the paper, an analytical frequency domain modeling is proposed to accurately compute the harmonics generated the static converters. Because no numerical simulation is used, the presented approach is fast, accurate and applicable for optimal sizing or sensibility analysis. It is also valid for every kind of static converters. It is illustrated by its application to the sizing of an AC/DC power converter used for connecting electrical generators to DC on-board networks. I.

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Modeling and harmonic calculation of three-phase half wave diode rectifier

Hoang

2022

2022 7th National Scientific Conference on Applying New Technology in Green Buildings (ATiGB)

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Analyzing Input Harmonic Currents of a Six-pulse AC/DC Converter by an Efficient Time-domain Approach

Cited by 4 publications

References 8 publications

Analytical frequency modeling of a diode rectifier: formulation for SQP solving versus formulation for Newton-Raphson solving

Analytical frequency modeling of a diode rectifier: formulation for SQP solving versus formulation for Newton-Raphson solving

Analytical modeling of static converters for optimal sizing of on-board electrical systems

Modeling and harmonic calculation of three-phase half wave diode rectifier

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