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2013 | OriginalPaper | Chapter

20. Study on Intelligent Grid-Connected Controller for Offshore Distributed Wind Power System

Authors : Huaqiang Zhang, Jinzhu Dou, Wei Sun

Published in: Proceedings of the International Conference on Information Engineering and Applications (IEA) 2012

Publisher: Springer London

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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 dq-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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Metadata
Title
Study on Intelligent Grid-Connected Controller for Offshore Distributed Wind Power System
Authors
Huaqiang Zhang
Jinzhu Dou
Wei Sun
Copyright Year
2013
Publisher
Springer London
DOI
https://doi.org/10.1007/978-1-4471-4856-2_20