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.
2
Dostęp do pełnego tekstu na zewnętrznej witrynie WWW
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.
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.