Magnetic material performance of transformers in common mode active EMI filters for bearing current suppression

• Autorzy: Di Piazza M. , Ragusa A. , Vitale G.

Warianty tytułu

PL

Właściwości materiałów magnetycznych stosowanych w aktywnych filtrach EMI

• Języki publikacji: EN

Abstrakty

EN

This paper analyses the performance of two magnetic materials used in the active filters for Common Mode (CM) electromagnetic interference (EMI) reduction in induction motor drives. In particular, active filters based on CM voltage compensation, very useful in bearing current suppression, are considered. The magnetic material is exploited for the core of the common mode transformer (CMT) that it is a crucial part of such devices because it performs the injection of the compensation voltage into the power connections between the inverter and the motor. The issues regarding the choice of the CMT core magnetic material and the windings design are discussed. The problem of the magnetic saturation, related to the desired high power/weight ratio is investigated. Furthermore, the power losses in the magnetic material under non-sinusoidal supply condition are evaluated through a suitable measurement system. A comparison of two CMTs, realized with ferrite and with nanocrystalline material cores, respectively, which are designed to perform the same filtering effect, is presented.

PL

W artykule przedstawiono analizę właściwości dwóch materiałów magnetycznych stosowanych w aktywnych filtrach EMI. Przedstawiono zalecenia dotyczące doboru materiału (głównie indukcji nasycenia) jak i konstrukcji dławików i transformatorów. Zmierzono także straty mocy w warunkach zasilania niesinusoidalnego. Porównano dwa materiały – ferryty i materiały nanokrystaliczne.

Słowa kluczowe

EN

transformer cores; soft magnetic materials; losses; EMI active filters; induction motor drives

PL

rdzenie transformastorowe; filtry EMI; straty mocy

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 6
• Strony: 198--201
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Di Piazza M.

autor

Ragusa A.

autor

Vitale G.

• Consiglio Nazionale delle Ricerche, ISSIA sez. Palermo, via Dante, 12 90141 Palermo, ITALY,

Bibliografia

• [1] G. L. Skibinski, R. J. Kerkman, D. W. Schlegel, “EMI Emissions of Modern PWM AC Drives”, IEEE Ind. Electron. Magaz., Nov./Dec. 1999 pp.47-81.
• [2] A. Muetze, A. Binder, “Pratical Rules for Assessment of Inverter-Induced Bearing Currents in Inverter-Fed AC Motors up to 500 kW”, IEEE Trans. Ind. Electron., vol. 54, no. 3, Jun. 2007 pp.1614-1622.
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• [4] M. C. Di Piazza, G. Tinè, G. Vitale, “An Improved Active Common Mode Voltage Compensation Device for Induction Motor Drives”, IEEE Trans. Industr. Electron., vol. 55 no. 4, Apr. 2008, pp. 1823 - 1834.
• [5] M. C. Di Piazza, G. Vitale, “A Laplace Domain Modelling Approach for CM Active EMI Filters”, PRZEGLĄD ELEKTROTECHNICZNY (Electrical Review), R. 86 NR 3/2010, Page(s): 200-204.
• [6] M. C. Di Piazza, A. Ragusa, G. Vitale, “Input EMI in Inverter-fed Motor Drives with Active Filtering of Motor CM Voltage”, Przegla ElektrotechnicznyY (Electrical Review), R. 85 NR 10/2009, Page(s): 248-252.
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