Application of Simplified Neutral Point Clamped Multilevel Converter in a Small Wind Turbine
DOI:
https://doi.org/10.2478/ecce-2014-0001Keywords:
AC-DC power converters, Power conversion harmonics, Wind energy generation, Bidirectional power flowAbstract
In low power distributed generation systems low cost together with the energy quality requirements are a key element. It is known that quality of voltage waveforms generated from multilevel converters is better in comparison with those from two-level. Due to advancements in power electronics and microcontrollers, multilevel converters are being built with the use of integrated power modules thus this type of converters are getting more compact in size. This paper investigates performance of a derivation from the most popular multilevel topology - a neutral point clamped converter (NPC). Applying the idea for simplifying the topology by reducing the number of switches (what came from drives) this NPC converter is capable of bidirectional AC/DC/AC operation. For the AC/DC part two schemes are tested: Direct Torque Control Space Vector Modulated and Field Oriented Control but for the DC/AC part a control scheme utilizing the proportional-resonant controller was chosen. Laboratory setup was based on a permanent magnet synchronous generator with control and acquisition completed with the help of dSpace 1005 control box. Experimental verification shows that system operates properly.References
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F. Blaabjerg, D. O. Neacsu, and J. K. Pedersen, “Adaptive SVM to compensate DC-link voltage ripple for four-switch three-phase voltagesource inverters,” IEEE Transactions on Power Electronics, vol. 14, no. 4, pp. 743-752, Jul. 1999.
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“Vicontech Power Modules Catalog 2013/14,” 2014. [Online]. Available: www.vicontech.com . [Accessed: 05-Mar-2014].
B.-R. Lin and T.-C. Wei, “Space vector modulation strategy for an eightswitch three-phase NPC converter,” IEEE Transactions on Aerospace and Electronic Systems, vol. 40, no. 2, pp. 553-566, Apr. 2004.
J. I. Leon, R. Portillo, S. Vazquez, J. J. Padilla, L. G. Franquelo, and J. M. Carrasco, “Simple Unified Approach to Develop a Time-Domain Modulation Strategy for Single-Phase Multilevel Converters,” IEEE Transactions on Industrial Electronics, vol. 55, no. 9, pp. 3239-3248, Sep. 2008.
Y. Sato, T. Ishizuka, K. Nezu, and T. Kataoka, “A new control strategy for voltage-type PWM rectifiers to realize zero steady-state control error in input current,” IEEE Transactions on Industry Applications, vol. 34, no. 3, pp. 480-486, 1998.
R. Teodorescu, F. Blaabjerg, M. Liserre, and P. C. Loh, “A New Breed of Proportional-Resonant Controllers and Filters For Grid-Connected Voltage-Source Converters,” IEE Proceedings on Electric Power Applications, vol. 153, no. 5, pp. 750-762, 2006.
A. Maknouninejad, M. G. Simoes, and M. Zolot, “Single phase and three phase P+Resonant based grid connected inverters with reactive power and harmonic compensation capabilities,” in Proceedings of International Electric Machines and Drives Conference, 2009, pp. 385-391.
D. Swierczwsk, M. P. Kazmierkowski, and F. Blaabjerg, “DSP based direct torque control of permanent magnet synchronous motor (PMSM) using space vector modulation (DTC-SVM),” in Proceedings of the IEEE International Symposium on Industrial Electronics ISIE-02, 2002, pp. 723-727 vol.3.
W.-S. Chien and Y.-Y. Tzou, “Analysis and design on the reduction of DC-link electrolytic capacitor for AC/DC/AC converter applied to AC motor drives,” in PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196), vol. 1, pp. 275-279.
S. Styński, PhD Thesis “Analysis and Control of Multilevel AC-DC-AC Flying Capacitor Converter Fed from Single-Phase Grid,” Warsaw University of Technology, 2011.
R. M. Tallam, R. Naik, M. L. Gasperi, and T. A. Nondahl, “Practical issues in the design of active rectifiers for AC drives with reduced DClink capacitance,” in 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, vol. 3, pp. 1538-1545.
M. Jasinski, D. Swierczynski, and M. P. Kazmierkowski, “Direct Active and Reactive Power Control of AC/DC/AC Converter with Permanent Magnet Synchronous Generator for Sea Wave Converter,” in Proceedings of International Conference on Power Engineering, Energy and Electrical Drives, 2007, pp. 78-83.
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2014-05-01
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Copyright (c) 2014 Pawel Mlodzikowski, Adam Milczarek, Mariusz Malinowski (Author)
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Mlodzikowski, P., Milczarek, A., & Malinowski, M. (2014). Application of Simplified Neutral Point Clamped Multilevel Converter in a Small Wind Turbine. Electrical, Control and Communication Engineering, 5(1), 5-10. https://doi.org/10.2478/ecce-2014-0001
