Fuzzy modal control implemented in grid connected WTDFIG for transient behaviour enhancement

Article type: Research Article

Authors: Samadi, Aliasghar^{; *} | Jazaeri, Mostafa

Affiliations: Electrical and Computer Engineering Faculty, University of Semnan, Semnan, Iran

Correspondence: [*] Corresponding author. Aliasghar Samadi, Electrical and Computer Engineering Faculty, POBox 35131-19111, University of Semnan, Semnan, Iran. E-mail: a.a.samadi@semnan.ac.ir.

Abstract:  An isolated network with Wind Turbine implemented by Double Fed Induction Generator (WTDFIG) that maintaining different electrical variables in safe ranges following a severe transient condition is always a serious challenge. This paper proposes a control scheme based on Auto-Tuning Fuzzy PI (ATFPI) concept for the Rotor Side Converter (RSC) of the DFIG by online tuning of the output scaling factor of the ATFPI for enhancement the transient behavior of the system under various condition of operation. The scheme includes a coordinator unit which is elaborated to effectively regulate the frequency and active power of the system. The performance of the proposed ATFPI controller is evaluated in a typical network in Matlab Simulink environment. Obtained results show that the control can successfully meet all functions drawn in the scope and easily put behind the conventional competitors like conventional PI and/or fuzzy PI controllers.

Keywords: DFIG, PI controller, fuzzy PI controller, modal analysis, transient condition, rotor side convertor

DOI: 10.3233/JIFS-171953

Journal: Journal of Intelligent & Fuzzy Systems, vol. 37, no. 4, pp. 4903-4921, 2019