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Since studies are intended to be used to predict the compliance with electromagnetic standards, an accurate computing of both common and differential mode conducted noise is necessary. Nowadays, modern networks-as car's network supplying many electrical actuators-include many power converters to manage efficiently power transfer, as well as a long cable (conductors), which creates new issues (e.g...
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...
Since studies are intended to be used to predict the compliance with Electromagnetic standards, an accurate computing of a common and differential mode conducted noise is necessary. Nowadays, the modern networks-as the car's network supplying many electrical actuators-include many power converters to manage efficiently the power transfer, but also a long cable (conductors), which creates new issues...
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 contribute to improve...
Power by wire concept is a novel trend in modern electrical systems. Hence, system networks have become more and more sophisticated, and their modeling is no longer an easy task. In this paper, we propose an analytical analysis of a global EMC of a modern electrical network. Explicitly, we develop an analytical model to evaluate differential mode impedance at different sites of a complex network....
Common mode and differential mode impedances are crucial for EMC networks modeling and filter design in particular. In this paper, we propose an original analytical model of common mode and differential mode input impedances of a DC-DC converter, including major parasitical elements. This model has been synthesized using basic laws of electrical circuits. The analysis of the converter circuit is achieved...
This paper proposes a new general method to model converters by a four-terminal circuit which consists in a π-quadripole network containing three impedances between each pair of electrical access, L to N, L to G and N to G. The impedances analytical expressions have been established using quadripole theory, and depend both on the converter switching function and impedances. The analytical method developed...
This paper proposes to investigate the Differential Mode (DM) input impedance of a DC-DC converter. This parameter is crucial for network analysis, in a wide frequency range, from very low frequency for network stability analysis up to several tens of MHz for EMC studies. Analytical approach based on signal processing theory is developed, validated by PSPICE simulations and experimental measurements...
This paper studies the common mode impedance of DC-DC converter in an embedded network. The frequency range of interest starts from few Hz up to tens of MHz. The low frequencies may be helpful for network studies (leakage currents, stability investigation …), whereas high frequencies are dedicated to EMC analysis. Online (i.e. with working converter) and offline (no switching) impedances will be compared,...
In this paper we have completed experimental studies about a measurement device of electromagnetic conducted noise emission generated by Power Electronics (converters). This equipment, manufactured in Electromagnetic Systems Laboratory (ESL) of EMP, is called a Line Impedance Stabilization Network (LISN). Firstly, a presentation of the two topologies: mono and double cells are highlighted. Afterwards,...
This paper presents a new hybrid cascaded H-bridge multilevel inverter (HCMLI) motor drive DTC control scheme for electric vehicles or hybrid electric vehicles where each phase of the inverter can be implemented using only a single DC source. Traditionally, each phase of the inverter require n DC source for 2n + 1 output voltage levels. In this paper, a scheme is proposed that allows the use of a...
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