Dynamic modeling and robust power control of DFIG driven by wind turbine at infinite grid

• Published in: International journal of electrical power & energy systems Vol. 44; no. 1; pp. 375 - 382
• Main Authors: Kassem, Ahmed M., Hasaneen, Khaled M., Yousef, Ali M.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.01.2013; Elsevier
• Subjects: Applied sciences; Direct energy conversion and energy accumulation; Doubly fed induction generator; Dynamical systems; Dynamics; Electric power generation; Electrical engineering. Electrical power engineering; Electrical machines; Electrical power engineering; Energy; Exact sciences and technology; High voltage or high current generators; Miscellaneous; Natural energy; Power control; Regulation and control; Robust control; Robustness; Sliding mode; Sliding mode control; Variable speed; Various equipment and components; Wind energy; Wind turbine; Wind turbines; Robust control; Power control; Wind turbine; Sliding mode control; Doubly fed induction generator; Performance evaluation; Asynchronous generators; Sliding mode; Stator; Control system; Parameter variation; Grid-connected system; Power electronics; Wind generator; Steady state; Varying speed; Sensitivity; Wind energy; Electrical network; Double supply machine; Robustness; Electric power production; Dynamic model; Comparative study
• ISSN: 0142-0615; 1879-3517
• DOI: 10.1016/j.ijepes.2011.06.038

► Mathematical model of DFIG connected to an infinite grid is proposed. ► Active and reactive power control based on ISMC is proposed. ► Different mode operations of DFIG is considered. ► A comparison between proposed ISMC and a conventional PI is presented. In this paper, a dynamic modeling and power control scheme for doubly-fed induction generator (DFIG) for variable speed wind power generation is proposed. A detail dynamic model of a DFIG-based, wind turbine and grid-connected system is presented in the d–q-synchronous reference frame. A robust controller based on sliding mode controller (SMC) is applied in order to control the power flowing between the stator of the DFIG and the power network. To improve the controller performance in steady state the integral sliding mode controller (ISMC) is used. Also, ISMC is used to achieve the controller robustness. Its respective performance is compared in terms of power reference tracking, sensitivity to perturbations in sub-synchronous and super-synchronous modes and robustness against machine parameters variations. Moreover, the proposed ISMC performance is compared with the conventional proportional–integral control.