Design of Direct Power Controller for a High Power Neutral Point Clamped Converter Using Real Time Simulator
In this paper, a direct power control (DPC) strategies have been investigated in order to control a high power AC/DC converter with time variable load. This converter is composed of a three level three phase neutral point clamped (NPC) converter as rectifier and an H-bridge four quadrant current control converter. In the high power application, controller not only must adjust the desire outputs but also decrease the level of distortions which are injected to the network from the converter. Regarding to this reason and nonlinearity of the power electronic converter, the conventional controllers cannot achieve appropriate responses. In this research, the precise mathematical analysis has been employed to design the appropriate controller in order to control the time variable load. A DPC controller has been proposed and simulated using Matlab/ Simulink. In order to verify the simulation result, a real time simulator- OPAL-RT- has been employed. In this paper, the dynamic response and stability of the high power NPC with variable load has been investigated and compared with conventional types using a real time simulator. The results proved that the DPC controller is more stable and has more precise outputs in comparison with conventional controller.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1100509Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1583
 M. Malinowski, M. P. Kazmierkowski, S. Hansen, F. Blaabjerg, and G. Marques, “Virtual-flux-based direct power control of three-phase pwm rectifiers,” Industry Applications, IEEE Transactions on, vol. 37, no. 4, pp. 1019–1027, 2001.
 T. Noguchi, H. Tomiki, S. Kondo, and I. Takahashi, “Direct power control of pwm converter without power-source voltage sensors,” Industry Applications, IEEE Transactions on, vol. 34, no. 3, pp. 473–479, 1998.
 L. A. Serpa and J. W. Kolar, “Virtual-flux direct power control for mains connected three-level npc inverter systems,” in Power Conversion Conference-Nagoya, 2007. PCC’07. IEEE, 2007, pp. 130–136.
 M. I. A. Zabihinejad, “Modeling and implementation of generator and network simulator for static exciters using matlab and labview,” Journal of Applied Sciences, vol. 11, no. 3, 2011.
 M. Fracchia, T. Ghiara, M. Marchesoni, and M. Mazzucchelli, “Optimized modulation techniques for the generalized n-level converter,” in Power Electronics Specialists Conference, 1992. PESC’92 Record., 23rd Annual IEEE. IEEE, 1992, pp. 1205–1213.
 F. Z. Peng, “A generalized multilevel inverter topology with self voltage balancing,” in Industry Applications Conference, 2000. Conference Record of the 2000 IEEE, vol. 3. IEEE, 2000, pp. 2024–2031.
 Z. Yingchao, Z. Zhengming, Z. Yongchang, L. Ting, and Y. Liqiang, “The virtual flux oriented control of three-level neutral point clamped pwm rectifier,” in Electrical Machines and Systems, 2007. ICEMS. International Conference on. IEEE, 2007, pp. 22–27.
 S. Zheng, S. Zheng, J. He, and J. Han, “An optimized distributed real-time simulation framework for high fidelity flight simulator research,” in Information and Automation, 2009. ICIA’09. International Conference on. IEEE, 2009, pp. 1597–1601.
 W. Wenjun, Z. Yanru, and W. Jianjun, “The comparative study of different methods about constructing switching table in dpc for three-level rectifier,” in Power Electronics for Distributed Generation Systems (PEDG), 2010 2nd IEEE International Symposium on. IEEE, 2010, pp. 314–319.
 M. Monga, “Real-time simulation of dynamic vehicle models using high performance reconfigurable computing platforms,” 2010.
 X. Xiaobo, Z. Kangfeng, Y. Yixian, and X. Guoai, “A model for real-time simulation of large-scale networks based on network processor,” in Broadband Network & Multimedia Technology, 2009. IC-BNMT’09. 2nd IEEE International Conference on. IEEE, 2009, pp. 237–241.
 M. J. Tavernini, B. A. Niemoeller, and P. T. Krein, “Real-time low-level simulation of hybrid vehicle systems for hardware-in-the-loop applications,” in Vehicle Power and Propulsion Conference, 2009. VPPC’09. IEEE. IEEE, 2009, pp. 890–895.
 J. Maroto, E. Delso, J. Felez, and J. M. Cabanellas, “Real-time traffic simulation with a microscopic model,” Intelligent Transportation Systems, IEEE Transactions on, vol. 7, no. 4, pp. 513–527, 2006.
 M. Lerotic, S.-L. Lee, J. Keegan, and G.-Z. Yang, “Image constrained finite element modelling for real-time surgical simulation and guidance,” in Biomedical Imaging: From Nano to Macro, 2009. ISBI’09. IEEE International Symposium on. IEEE, 2009, pp. 1063–1066.