Autor: Smoleński, R. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Decomposition of EMI Noise into Common and Differential Modes in PWM Inverter Drive System
Autorzy:: Kempski, A.
Smoleński, R.
Powiązania:: https://bibliotekanauki.pl/articles/262576.pdf
Data publikacji:: 2006
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: electromagnetic compatibility
common mode
differential mode
PWM inverter drive system
Opis:: 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.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2006, 12, 1; 53-58
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Prady łożyskowe w układach napędowych z falownikami PWM
Bearing currents in PWM inverter-fed drives
Autorzy:: Kempski, A.
Smoleński, R.
Powiązania:: https://bibliotekanauki.pl/articles/1374764.pdf
Data publikacji:: 2006
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Napędów i Maszyn Elektrycznych Komel
Tematy:: prąd łożyskowy
układ napędowy
falownik PWM
silniki elektryczne
Opis:: The application of high switching techniques improves the economic and technical parameters of induction motor drives. However, it has been discovered recently an adverse effect on a bearing assembly which is caused by destructive bearing currents EDM (Electrical Discharge Machining). Since the introduction of the IGBT technology there has been a documented increase in electrically induced bearing failures and shortening electrical life of bearings. In the paper it has been presented the statistical approach related to the distributions of EDM currents in drives with different filter configurations. Commonly used solutions for CM currents reducing are the line reactors and CM chokes. However, they increase risk of the appearance of EDM currents of higher amplitudes in shorter awaiting times. The CM transformer is a good choice for a simultaneous decreasing of the CM current and the risk of EDM currents. However, the best method of an elimination of bearing currents is a cancellation of its source - common mode voltage - at the output of the inverter. In a paper it has been presented so-called sinusoidal filter that assures nearly zero common voltage at the filter output, strongly damps common and differential EMI and eliminate bearing currents.
Źródło:: Maszyny Elektryczne: zeszyty problemowe; 2006, 74; 75-80
0239-3646
2084-5618
Pojawia się w:: Maszyny Elektryczne: zeszyty problemowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Method of Selection of dv/dt for EMI Current Ringing Attenuation
Autorzy:: Kempski, A.
Smolenski, R.
Powiązania:: https://bibliotekanauki.pl/articles/262775.pdf
Data publikacji:: 2008
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:: conducted
electromagnetic
interferences
flexible gate control
current ringing
DC Hopper
Opis:: In this paper the method of the selection of dv/dt for EMI current ringing attenuation has been presented. The mechanism for the attenuation is first identified using the theoretical approach. It is shown that the attenuation occurs for rise time of the voltage equal to the inverse of the frequency of current ringing. The concept has been experimentally verified in DC chopper and frequency converter arrangements. The proposed method of ringing attenuation can be applied in power converters with flexible gate control and can be also utilized in a wide area of electronic circuits with a trapezoidal excitation for a signal integrity improvement.
Źródło:: Electrical Power Quality and Utilisation. Journal; 2008, 14, 2; 19-24
1896-4672
Pojawia się w:: Electrical Power Quality and Utilisation. Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: CM voltage compensation in AC/DC/AC interfaces for smart grids
Autorzy:: Smoleński, R.
Jarnut, M.
Benysek, G.
Kempski, A.
Powiązania:: https://bibliotekanauki.pl/articles/200055.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electromagnetic compatibility
conducted interferences
distributed system
power electronic interface
Opis:: In this paper the results of research connected with common mode (CM) interference generated by four-quadrant frequency converters and effective methods of CM voltage compensation are presented. The obtained results show that conducted CM interference generated by these converters in a low voltage (LV) grid can be transferred by means of parasitic couplings into a medium voltage (MV) network and can be observed at distant points under overhead MV lines. The compensation of the CM voltage sources on both the input and the output sides of the AC/DC/AC converter using proposed arrangement of compensators significantly reduces unwanted, EMC related, side effects accompanying the application of AC/DC/AC interfaces in Smart Grids.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 4; 513-523
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Diophantine equation based model of data transmission errors caused by interference generated by DC-DC converters with deterministic modulation
Autorzy:: Bojarski, J.
Smolenski, R.
Lezynski, P.
Sadowski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/201621.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: electromagnetic compatibility
electromagnetic interference
power electronic converters
Diophantine equation
kompatybilność elektromagnetyczna
interferencja elektromagnetyczna
elektroniczny konwenter mocy
równanie diofantyczne
Opis:: The assurance of the electromagnetic compatibility of sensitive smart metering systems and power electronic converters, which introduce high-level electromagnetic interference is important factor conditioning reliable operation of up to date power systems. Presented experimental results have shown that currently binding, frequency domain tests are ineffective for the evaluation of data transmission error hazards. The proposed in this paper mathematical, time-domain model, based on Diophantine equation, enables evaluation of data transmission errors caused by interference introduced by DC-DC power electronic interfaces with deterministic modulation. In the paper there have been presented possible application areas for the proposed model.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2016, 64, 3; 575-580
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki