Control Method of the DFIG Connected to a DC Link through a Diode Bridge


This paper presents a control method for the Doubly-fed Induction Generator connected to a dc link through a diode bridge on the stator. In this system, the rotor is fed, at the slip frequency, by a PWM electronic converter and the stator is directly connected to the dc link using a simple diode bridge. The cost of power electronics is reduced in this system when compared with the classic DFIG machine because the system uses less one PWM inverter and additionally it uses a diode bridge. The application in mind is for microgrids. Microgrids need several elements that should work together. The usual way to connect these elements is to use power electronic devices in a common dc link. This paper presents a new form for the DFIG for this application and presents a control system for the inner control loop. Simulation and experimental results show that the system can work acceptably using a stator frequency near the rated frequency of the machine.

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G. Marques and M. Iacchetti, "Control Method of the DFIG Connected to a DC Link through a Diode Bridge," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 102-108. doi: 10.4236/epe.2013.54B020.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] S. Chowdhury, S. P. Chowdhury and P. Crossley, “Microgrids and Active Distribution Networks,” IET Renewable Energy series 6, The Institution of Engineering and Technology, 2009.
[2] J. A. Peças Lopes, C. L. Moreira and A. G. Madureira, “Defining Control Strategies for MicroGrids Islanded Operation,” IEEE Transactions On Power Systems, Vol. 21, No. 2, 2006, pp. 916-924. doi:10.1109/TPWRS.2006.873018
[3] F. Blaabjerg, Z. Chen and S. B. Kjaer, “Power Electronics as Efficient Interface in Dispersed Power Generation System,” IEEE Transactions Power Electronics, Vol. 19, No. 5, 2004, pp. 1184 -1194. doi:10.1109/TPEL.2004.833453
[4] F. Blaabjerg, R. Teodorescu, M. Liserre and A. V. Timbus, “Overview of Control and Grid Synchronization for Distributed Power Generation Systems,” IEEE Transactions Industrial Electronics, Vol. 53, No. 5, 2006, pp.1398 -1409. doi:10.1109/TIE.2006.881997
[5] D. Salomonsson and A. Sannino, “Low-voltage DC Distribution System for Commercial Power Systems with Sensitive Electronic Load,” IEEE Transactions Power Delivery, Vol. 22, No. 3, 2007, pp. 1620 -1627. doi:10.1109/TPWRD.2006.883024
[6] K. Kurohane, T. Senjyu, Y. Yonaha, A. Yona, T. Funabashi and C. H. Kim, “A Distributed DC Power System in an Isolated Island,” Proceedings IEEE ISIE, 2009, pp. 1-6.
[7] P. Karlsson and J. Svensson, “DC Bus Voltage Control for a Distributed Power System,” IEEE Transactions Power Electronics, Vol. 18, No. 6, 2003, pp. 1405 -1412. doi:10.1109/TPEL.2003.818872
[8] Y. Ito, Y. Q. Zhong and H. Akagi, “DC Microgrid Based Distribution Power Generation System,” Proceedings IPEMC, 2004, pp. 1740 -1745.
[9] H. Kakigano, Y. Miura, T. Ise and R. Uchida, “DC Micro-grid for Super High Quality Distribution—System Configuration and Control of Distributed Generations and Energy Storage Devices,” Proceedings IEEE Power Engineering Society Conference, 2006, pp. 1 -7.
[10] W. Leonard, “Control of Electrical Drives,” Berlin, Germany: Springer- Verlag, 1990.
[11] R. Pena, J. C. Clare and G. M. Asher, “Doubly Fed Induction Generator Using Back-to-back PWM Converters and Its Application to Variable-speed Wind-energy Generation,” Proceedings Inst. Electric Engineering –Electric Power Application, Vol. 143, No. 3, 1996, pp. 231-241. doi:10.1049/ip-epa:19960288
[12] G. Iwansky and W. Koczara, “DFIG-based Power Generation System with UPS Function for Variable-speed Applications,” IEEE Transactions Industrial Electronics, Vol. 55, No. 8, 2008, pp. 3047-3054. doi:10.1109/TIE.2008.918473
[13] M. Hancock, “Rectifier action with Constant Load Voltage: Infinite Capacitance Condition,” Proceedings Inst. Electronics Engineering, London, UK, Vol. 120, No. 12, 1973, pp. 1529-1530.
[14] M. Bassetti, F. Braghin, F. Castelli-Dezza, M. F. Iacchetti and M. M. Maglio, “Energy Transfer on Rotating Shafts Using PM-Printed Winding Machine,” IEEE International Conference on Electrical Machines 2012 - ICEM ’12, Marseille – France, September 2012.
[15] J. A. M. Bleijs, “Continuous Conduction Mode Operation of Three-phase Diode Bridge Rectifier with Constant Load voltage,” IEE Proceeding Electronics Power Application, Vol.152, No.2, 2005, pp. 359-368. doi:10.1049/ip-epa:20040684
[16] G. D. Marques and D. M. Sousa, “Understanding the DFIG during Voltage Dips,” IEEE Transactions Energy Conversion, Vol. 27, No. 2, 2012, pp. 421-431. doi:10.1109/TEC.2012.2189214

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