scholarly journals Analytical Models Synthesis of Power Electronic Converters

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Achour Ales ◽  
Jean-Luc Schanen ◽  
Djelloul Moussaoui ◽  
James Roudet
Keyword(s):  
Mathematical Models ◽  
Analytical Model ◽  
Analytical Models ◽  
Electrical Network ◽  
Equivalent Circuits ◽  
Experimental Measurements ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Noise Sources ◽  
Harmonic Noise

In this paper we proposes a synthesis of different mathematical models of power electronic converters based on Thevenin/Norton equivalent circuits. Those models, composed by impedances and harmonic noise sources, are helpful to predict the conducted ElectroMagnetic Interferences (EMI) generated by converters connected to the electrical network. Moreover, the extracted impedances are determining for sizing EMC filters. The proposed analytical model is tested with PSpice simulations and validated by experimental measurements, from DC frequency until 30MHz.

scholarly journals Experimental Measurement of Conducted Emissions Generated by Static Converters in Common and Differential Modes

2021 ◽  
Vol 23 (3) ◽  
pp. 273-279
Author(s):  
Helima Slimani ◽  
Abdelhakim Zeghoudi ◽  
Abdelber Bendaoud ◽  
Abdeldjalil Reguig ◽  
Baghdadi Benazza ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Experimental Measurement ◽  
Experimental Measurements ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Static Converters ◽  
Energy Conversion Systems ◽  
Conducted Emissions

The commutation of semiconductors and their interactions with parasitic elements linked to the environment is known to be the main source of interferences conducted in power electronic converters. Thus, identifying these sources of interferences in commutation cells and determining the level of these conducted emissions generated in energy conversion systems presents a major challenge for designers. In this work, a study of the electromagnetic interferences (EMI) generated by the association of serial rectifier-chopper connected to a Line Impedance Stabilization Network (LISN) is proposed, in which a determination of these interferences is presented in both common and differential modes. All simulations are carried out using the LT-spice software and the results obtained are validated by experimental measurements realized at APELEC laboratory (University of Sidi Bel-Abbes, Algeria).

Permeability models of 0°/45° alternating multilayer fabrics considering the effect of layer shift

2016 ◽  
Vol 36 (3) ◽  
pp. 163-175 ◽  
Author(s):  
Shuo Feng
Keyword(s):  
Mathematical Models ◽  
Fiber Volume Fraction ◽  
Volume Fraction ◽  
Unit Cell ◽  
Analytical Models ◽  
Experimental Measurements ◽  
Fiber Volume ◽  
Local Permeability ◽  
Out Of Plane

In this paper, the effect of layer shifting on out-of-permeability of 0°/45° alternating multilayer fabrics was studied. Three mathematical models with three extreme structures were developed to predict the out-of-plane permeability, respectively. By segmenting the unit cell into several different zones according to characteristic yarn arrangement, the global permeability was modeled by using a rule of mixture of local permeability. The influences of local permeability of each zone on the global value of unit cell were carefully researched. In addition, experimental measurements of the permeability were carried out to validate the analytical models. And the differences of the results of three extreme structures with respect to fiber volume fraction were also investigated.

scholarly journals The Analytical Model of Biomass Combustion

2020 ◽  
Vol 328 ◽  
pp. 04003
Author(s):  
Alexander Backa ◽  
Radovan Nosek ◽  
Alexander Čaja
Keyword(s):  
Mathematical Model ◽  
Mathematical Models ◽  
Analytical Model ◽  
Combustion Process ◽  
Biomass Combustion ◽  
Measuring Instruments ◽  
Experimental Measurements ◽  
Wood Pellets

The standard detection of the emission and power parameters of the combustion process can be time and money consuming due to the performance of experimental measurements with the necessary measuring instruments. Alternatives to describe the combustion process are mathematical models. Their variability is high and therefore, depending on the need for use, an analytical mathematical model was chosen. Among the computationally faster and less time-consuming models is the analytical model, which can not only describe some parameters of the combustion process (power, emissions and others) but also predict the parameters of the combustion process according to the selected input values. This work is focused on the prediction of selected emission parameters through an analytical model for 100 % straw and 100 % wood pellets.

scholarly journals Agent-Based Coordinated Control of Power Electronic Converters in a Microgrid

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1031
Author(s):  
Maryam Nasri ◽  
Herbert L. Ginn ◽  
Mehrdad Moallem
Keyword(s):  
Hash Table ◽  
Power Sharing ◽  
Distributed Hash Table ◽  
Power Electronic ◽  
Power Electronic Converters ◽  
Agent Based ◽  
Development Framework ◽  
Study Results ◽  
Set Up ◽  
Microgrid Control

This paper presents the implementation of an agent-based architecture suitable for the coordination of power electronic converters in stand-alone microgrids. To this end, a publish-subscribe agent architecture was utilized as a distributed microgrid control platform. Over a distributed hash table (DHT) searching overlay, the publish-subscribe architecture was identified based on a numerical analysis as a scalable agent-based technology for the distributed real-time coordination of power converters in microgrids. The developed framework was set up to deploy power-sharing distributed optimization algorithms while keeping a deterministic time period of a few tens of milliseconds for a system with tens of converters and when multiple events might happen concurrently. Several agents participate in supervisory control to regulate optimum power-sharing for the converters. To test the design, a notional shipboard system, including several converters, was used as a case study. Results of implementing the agent-based publish-subscribe control system using the Java Agent Development Framework (JADE) are presented.

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