Title: Series compensation strategy for the DFIG-based wind turbine under grid voltage dip conditions
Authors: Olfa Awedni; Abdelkarim Masmoudi; Lotfi Krichen
Addresses: Control and Energy Management Laboratory (CEMLab), Electric Engineering Department, National Engineering School of Sfax, BP 1173, 3038, Sfax, Tunisia ' National School of Electronics and Telecommunications of Sfax, BP 1163, 3018, Ons City, Sfax, Tunisia ' Control and Energy Management Laboratory (CEMLab), Electric Engineering Department, National Engineering School of Sfax, BP 1173, 3038, Sfax, Tunisia
Abstract: This paper proposes a series grid voltage compensation method able to diagnose and tolerate voltage dip faults in order to enhance the fault ride through (FRT) capability of doubly fed induction generator (DFIG)-based wind energy conversion systems. A series compensation algorithm is applied to deal with the occurrence of a voltage dip fault. Linearised mathematical models are developed for both healthy and faulty operating conditions in order to establish an appropriate and precise voltage controllers' regulation. Finally, the simulation results obtained from the studied FRT technique implementation are carried out to validate the performance of the proposed strategy.
Keywords: wind generator; doubly fed induction generator; DFIG; fault ride through configuration; fault ride through; FRT; voltage series compensation; voltage dip.
International Journal of Digital Signals and Smart Systems, 2018 Vol.2 No.3, pp.240 - 256
Received: 31 May 2018
Accepted: 13 Aug 2018
Published online: 09 Jan 2019 *