2017, Volume 12, Issue 3
Frontiers of Mechanical Engineering >> 2017, Volume 12, Issue 3 doi: 10.1007/s11465-017-0429-y
Hierarchical parameter estimation of DFIG and drive train system in a wind turbine generator
College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
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Abstract
A new hierarchical parameter estimation method for doubly fed induction generator (DFIG) and drive train system in a wind turbine generator (WTG) is proposed in this paper. Firstly, the parameters of the DFIG and the drive train are estimated locally under different types of disturbances. Secondly, a coordination estimation method is further applied to identify the parameters of the DFIG and the drive train simultaneously with the purpose of attaining the global optimal estimation results. The main benefit of the proposed scheme is the improved estimation accuracy. Estimation results confirm the applicability of the proposed estimation technique.
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