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| Modeling and Control for Rectifier in the Hybrid-HVDC System for DFIG-Based Wind Farm |
| Zhou Honglin, Yang Geng |
| Tsinghua University Beijing 100084 China |
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Abstract For DFIG-based wind farm with hybrid-HVDC connection, the standard statevariable model on the dq reference frame is established in the first place. Then the characteristics of the active and reactive current transients are analyzed with respect to the operation mode of the inverter subsystem, and the approximate dynamic model of the rectifier subsystem is established accordingly. Based on this model, the double-loop control scheme for the rectifier subsystem is proposed. Through Matlab/Simulink simulation, the validity of the analysis results for the rectifier subsystem is verified. The hybrid system is also simulated in the SimPowerSystems environment. The results demonstrate that, the proposed control scheme can effectively improve the current tracking capability of the HVDC system.
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Received: 30 April 2010
Published: 20 March 2014
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2012, Vol. 27 
