Abstract
With large penetration of DFIG wind turbines, fault ride through capability and transient stability improvement issues have been rapidly interested to investigate in terms of DFIG controller design. This paper proposes a fuzzy logic voltage regulator to improve transient stability and fault ride through capability of DFIG wind turbines. To compose the proposed controller, utilized for the Rotor Side Converter (RSC), the Takagi-Sugeno (TS) fuzzy logic controller is instantly implemented for enhancing DFIG ability. The simulation results have been compared with a lead-lag compensator revealing that the proposed controller is able to increase DFIG transient stability with robustness and it shows also a superior performance for fault ride through capability enhancement with Irish grid code as a standard, under disparate circumstances.
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