Bearing current reduction in a five level flying capacitor DTC drive

• Autorzy: Aresteh M. , Rahmati A. , Farhangi S. , Abrishamifar A.

Warianty tytułu

PL

Redukcja prądu łożyskowania w napędzie DTC

• Języki publikacji: EN

Abstrakty

EN

Bearing currents in induction motors caused by breakdown of thin layers of grease (electrical discharge machining) known as the main factor in bearing damage and is a function of common mode voltage (CMV). In this paper various switching tables to reduce CMV and thus bearing currents in a DTC-controlled five-level drive are compared and a new switching table using redundancy concept is presented which efficiently reduces the CMV. The simulation results in SIMULINK/Matlab environment prove the capability of the proposed strategy for reducing the common mode voltage in a five level inverter. The experimental results of a prototype five level flying capacitor inverter confirm common mode reduction using the proposed switching table.

PL

Prądy łożyskowania w silniku indukcyjnym powodowane przebiciem w cienkiej warstwie smaru są jedną z głównych przyczyn uszkodzenia łożysk i jest funkcją składowej wspólnej napięcia CMV. W artykule zaprezentowano tabele przełączeń umożliwiającą redukcję CMV w sterowniku bezpośredniej kontroli momentu DTC. Wyniki symulacji i eksperymentów potwierdziły możliwość redukcji CMW w pięciopoziomowym przekształtniku.

Słowa kluczowe

EN

direct torque control; Flying-capacitor multilevel inverters; common mode voltage; bearing current

PL

bezpośrednia kontrola momentu DTC; prądy łożyskowania

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 4
• Strony: 286--292
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Aresteh M.

autor

Rahmati A.

autor

Farhangi S.

autor

Abrishamifar A.

• School of Eectrical Engineering, Iran University of science and technology, Narmak, Tehran, Iran,

Bibliografia

• [1] Jose Rodriguez, Steffen Bernet, BinWu, Jorge O. Pontt and Samir Kouro, "Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives", IEEE Trans. Indust. Electron., vol. 54, no. 6, Dec. 2007
• [2] S. Kouro, M. Malinowski, K. Gopakumar, J. Pou, L. G. Franquelo, B. Wu, J. Rodriguez, M. A. Perez, and Jose I. Leon, Member, "Recent Advances and Industrial Applications of Multilevel Converters," IEEE Trans. Indust. Electron., vol. 57, no. 8, Aug. 2010
• [3] H. Abu-Rub, J. Holtz, J. Rodriguez, and G. Baoming,"Medium-Voltage Multilevel Converters-State of the Art, Challenges, and Requirements in Industrial Applications," IEEE Trans. Indust. Electron., vol.57, no. 8, Aug. 2010
• [4] S. S. Fazel, Steffen Bernet, D. Krug, and K. Jalili, "Design and Comparison of 4-kV Neutral-Point-Clamped, Flying-Capacitor, and Series-Connected H-Bridge Multilevel Converters", IEEE Trans. Ind. Applicat., vol. 43, , pp. 1032-1040, Jul./Aug. 2007.
• [5] D. Krug, S. Bernet, S. S. Fazel, K. Jalili, and M. Malinowski, "Comparison of 2.3-kV Medium-Voltage Multilevel Converters for Industrial Medium-Voltage Drives", IEEE Trans. Indust. Electron., vol.. 54, no. 6, Dec. 2007
• [6] K.B. Lee, J.H. Song, I. Choy, and J.Y. Yoo, "Torque Ripple Reduction in DTC of Induction Motor Driven by Three-Level Inverter With Low Switching Frequency", IEEE Trans. Power Electron., vol. 17, no.2, Mar. 2002.
• [7] J. Rodriguez, J.Pontt, S. Kouro, and P. Correa, "Direct Torque Control with Imposed Switching Frequency in an 11-Level Cascaded Inverter", IEEE Trans. Indust. Electron., vol. 51, Aug. 2004 pp. 827-833.
• [8] M.F. Escalante, J.-C. Vannier and A. Arzande, "Flying capacitor multilevel inverters and DTC motor drive applications", IEEE Trans. Indust. Electron., vol.49, Aug. 2002, pp.809-815.
• [9] J. Erdman, R. Kerkman, and D. Schlegel, "Effect of PWM inverters on AC motor bearing currents and shaft voltages," IEEE Trans. Ind. Applicat., vol. 32, no. 2, pp. 250-259, Mar./Apr. 1996.
• [10] S. Chen, T. A. Lipo, and D. Fitzgerald, "Modelling of bearing currents in inverter drives," IEEE Trans. Ind. Applicat., vol. 32, no. 1, pp. 21-32, Jan./Feb. 1996.
• [11] Busse, D., Erdman, J. M., Kerkman, R. J., Schlegel, D. W. and Skibinski, G. L. (1997c), "An evaluation of the electrostatic shielded induction motor: a solution for rotor shaft voltage buildup and bearing current," IEEE Trans. Ind. Applicat., vol. 33, no. 6, Nov./Dec.97
• [12] Fei Wang, "Motor shaft voltages and bearing currents and their reduction in multilevel medium-voltage PWM voltage-source-inverter drive applications", IEEE Trans. Ind. Applicat., vol. 36, lssue:5, Sep./Oct. 2000, pp. 1336-1341.
• [13] Xiyou Chen, Dianguo Xu, Fengchun Liu, Jianqiu Zhang, "A Novel Inverter-Output Passive Filter for Reducing Both Differential- and Common-Mode dv/dt at the Motor Terminals in PWM Drive Systems," IEEE Trans. Indust. Electron., vol. 54, no. 1, pp. 419-426, Feb. 2007.
• [14] Hanigovszki, Norbert ; Poulsen, Joern ; Blaabjerg, Frede . "A Novel Output Filter Topology to Reduce Motor Overvoltage," IEEE Trans. Ind. Applicat., vol. 40, no. 3 pp. 845-852, May/Jun. 2004.
• [15] Hirofumi Akagi and Shunsuke Tamura, "A Passive EMI Filter for Eliminating Both Bearing Current and Ground Leakage Current From an Inverter-Driven Motor," IEEE Trans. Power Electron., vol. 21, no. 5, Sep. 2006
• [16] D. Hyypio, "Mitigation of Bearing Electro-Erosion of Inverter-Fed Motors Through Passive Common-Mode Voltage Suppression," IEEE Trans. Ind. Applicat., vol. 41, no. 2, pp. 576-583, Mar./Apr. 2005.
• [17] C. Mei, J. C. Balda, W. P. Waite, "Cancellation of Common-Mode Voltages for Induction Motor Drives Using Active Method," IEEE Trans. Energy Convers., vol. 21, no. 2, Jun. 2006
• [18] H. Zhang et al, "Multi-level inverter modulation schemes to eliminate common-mode voltages," IEEE Trans. Ind. Applicat., vol. 36, pp. 1645-1653, Nov./Dec. 2000.
• [19] P.C. Loh, D.G. Holmes, Y. Fukuta & T.A. Lipo, "A Reduced Common Mode Hysteresis Current Regulation Strategy for Multilevel Inverters," IEEE Trans. Power Electron.,vol. 19, pp. 192-200, Jan. 2004
• [20] R. S. Kanchan, P. N. Tekwani, and K. Gopakumar, "Three level inverter scheme with common mode voltage elimination and dc link capacitor voltage balancing for an open-end winding induction motor drive," IEEE Trans. Power Electron., vol. 21, no.6, pp. 1676-1683", Nov. 2006
• [21] W. Leonhard, "Control of Electrical Drives," Third edition, Berlin, Springer, 2001.
• [22] Arasteh M., Rahmati, A., Farhangi, S., Abrishamifar, A., "DTC on multilevel inverters for pumping and ventilation applications," 4th IEEE Conference on Industrial Electronics and Applications, ICIEA 2009. 25-27 pp. 2316 - 2320, May 2009.
• [23] A. Muetze and A. Binder, "Calculation of motor capacitances for prediction of the voltage across the bearings in machines of inverter-based drive systems," IEEE Trans. Ind. Applicat., vol. 43, no. 3, pp. 665-672,May/Jun. 2007.