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1

Simulation of transfer of HF conductive disturbances from the primary to the secondary circuits of inductive current transformers in CM-CM coupling

Mana Hassan

Przegląd Elektrotechniczny

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2020

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R. 96, nr 1

93--99

EN

This paper present the simulation of the transfer of electromagnetic disturbances from the primary to the secondary circuits of current transformers in CM-CM coupling in the frequency range [0.1 - 20MHz] . The primary voltage U1 of the primary winding equal to 30V was taken for the study of the two models of the current transformers in different configurations with and without screen to see its influence on the transmission of the disturbances, also to see the effect of capacitive couplings between the different CT elements. The simulation results obtained which represent the variation of the transfer function as a function of frequency gave us the maximum disturbance rate for each case.

PL

W artykule analizowano przejście zakłóceń elektromagnetycznych z uzwojenia pierwotnego do wtórnego przekładnika prądowego w zakresie częstotliwości 0.1 – 20 MHz. Analizowano też sprzężenie pojemnościowe między tymi uzwojeniami. Transmisja zakłóceń zależy od czestotliwości.

2

Analytical models synthesis of power electronic converters

Ales A., Cheurfi-Belhadj M. A., Schanen J. L., Moussaoui D., Roudet J.

Transactions on Environment and Electrical Engineering

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2017

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Vol. 2, No. 1

52--59

EN

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.

3

Wpływ temperatury elementów filtru na jego tłumienność

Pasko S.

Przegląd Elektrotechniczny

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2013

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R. 89, nr 10

176-181

PL

Celem artykułu jest przedstawienie wpływu temperatury na właściwości tłumienia zaburzeń przewodzonych filtru przeciwzakłóceniowego. Wpływ temperatury na właściwości filtru przeciwzakłóceniowego zależy od konstrukcji i typu elementów filtru. Indukcyjności dławików sprzężonych oraz wartości pojemności kondensatorów mają taką samą wartość w analizowanym filtrze lecz inne materiały magnetyczne i dielektryczne są wykorzystane do ich konstrukcji. Analiza została przeprowadzona dla jednofazowego jednostopniowego filtru przeciwzakłóceniowego.

EN

The temperature influence of EMI filter on insertion loss properties of conducted interference is analyzed in this paper. The temperature influence on insertion loss of EMI filter depends of construction and type of filter’s component. The common mode choke and capacitors values are the same of analyses filter, but different magnetic and dielectric materials are used to its construction. The analysis is carried out for one phase, one stage EMI filter.

4

Decomposition of EMI Noise into Common and Differential Modes in PWM Inverter Drive System

Kempski A., Smoleński R.

Electrical Power Quality and Utilisation. Journal

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2006

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Vol. 12, nr 1

53-58

EN

In this paper [20] an analytical approach to decomposition of total phase EMI noises through algebraic calculations and the Fourier transform has been presented. Separating conducted EMI noise into different, common and differential mode (CM and DM) HF current components is important for a proper spectral analysis and application of EMI mitigation techniques. The results of calculations have been compared to EMI currents measured on the motor side of the PWM drive system. The proposed approach can be useful in comparative analysis of the influence of inverter control algorithms on spectra of CM currents in a given drive system.