Abstract
A kind of new topological structure of grid-connected Z-source inverter used in offshore wind power generation control system is proposed. And its operational principle of the improved Z-source inverter is analyzed. An implementation method of fixed shoot-through step-up ratio control with Space Vector Pulse Width Modulation (SVPWM) system is studied. The mathematical model of three-phase voltage source PWM inverter in the three-phase static coordinate system and two-phase rotation coordinate system is built. The control strategy of fixing Z-network capacitor voltage and decoupled controlling d–q-axis current is used to realize unity power factor grid-connected. The results of simulation verify its correctness of theoretical analysis and validity of control method.
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Acknowledgments
This paper was supported by Shandong Science and Technology Fund (2011GGH20411) and Shandong Excellent Young Scientist Research Award Fund (BS2010NJ001).
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© 2013 Springer-Verlag London
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Zhang, H., Dou, J., Sun, W. (2013). Study on Intelligent Grid-Connected Controller for Offshore Distributed Wind Power System. In: Zhong, Z. (eds) Proceedings of the International Conference on Information Engineering and Applications (IEA) 2012. Lecture Notes in Electrical Engineering, vol 216. Springer, London. https://doi.org/10.1007/978-1-4471-4856-2_20
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DOI: https://doi.org/10.1007/978-1-4471-4856-2_20
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