Model development and small‐signal stability analysis of DFIG with stator winding inter‐turn fault. Issue 3 (27th January 2017)

• Record Type: Journal Article
• Authors: Sun, Liling; Xu, Boqiang; Du, Wenjuan; Wang, Haifeng
• Is Part Of: IET renewable power generation. Volume 11:Issue 3(2017)
• Page Start: 338
• Page End: 346
• Publication Date: 2017-01-27
• Subjects: asynchronous generators -- stators -- wind power -- machine control -- Lyapunov methods -- eigenvalues and eigenfunctions; doubly fed induction generator -- model development -- small‐signal stability analysis -- stator winding inter‐turn fault -- wind power generation -- form‐standardised state‐space model -- dq reference frame -- stator‐voltage‐oriented control frame -- Matlab simulation -- Lyapunov stability theory -- eigenvalue analytical expressions -- Simulink demo routine; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2016.0593
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : Much attention has been continuously paid on the model development and stability analysis of the doubly fed induction generator (DFIG) widely applied in wind power generation. Similarly, this study develops the form‐standardised state‐space model in the dq reference frame of the DFIG with stator winding inter‐turn fault (SWITF). Compared with those previously developed, it is definitely preferable for the simulation and stability analysis of the DFIG with SWITF due to its standard form. Moreover, for the DFIG with SWITF working in stator‐voltage‐oriented control frame, the small‐signal stability analysis is conducted using MATLAB simulation, yielding the conclusion that SWITF will never eradicate the DFIG's small‐signal stability but deteriorate it to some extent. This conclusion is further validated by means of the Lyapunov stability theory. As a kind of contribution of this study, the analytical expressions of the eigenvalues of the DFIG with SWITF are derived. Case study based on an MATLAB/Simulink demo routine is completed to demonstrate the validity of the model development and small‐signal stability analysis of the DFIG with SWITF.