Open AccessFast control strategy for stabilising fixed‐speed induction‐generator‐based wind turbines in an islanded distributed system
Author(s) -
Wei Mu,
Chen Z.
Publication year - 2013
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2011.0324
Subject(s) - induction generator , wind power , doubly fed electric machine , wind generator , control theory (sociology) , generator (circuit theory) , computer science , control (management) , control engineering , engineering , power (physics) , ac power , electrical engineering , physics , voltage , quantum mechanics , artificial intelligence
Distributed generation systems (DGS) with fixed‐speed induction‐generator‐based wind turbines (FSWT) are sensitive and vulnerable to voltage disturbances and reactive power deficiency. Consequently, the control and protection strategies for such a DGS should be prompt and precise to avoid undesired wind generator cutting off. This study investigates and analyses the dynamic characteristics of an FSWT to reveal the behaviours of an FSWT under disturbances. Then a fast control strategy for stabilising an islanded DGS is proposed. The main contributions of the control strategy are: the total amount of reactive power compensation and load shedding may be determined precisely; all the operation execution points may be decided accurately to improve DGS stability. Furthermore, the implementation of the fast control strategy is also discussed. A case study is presented to demonstrate the effectiveness of the proposed method.