Title :
Improving Fault Ride-Through Capability of Variable Speed Wind Turbines in Distribution Networks
Author :
Mokryani, Geev ; Siano, Pierluigi ; Piccolo, Antonio ; Zhe Chen
Author_Institution :
Dept. of Ind. Eng., Univ. of Salerno, Fisciano, Italy
Abstract :
In this paper, a fuzzy controller for improving the fault ride-through (FRT) capability of variable speed wind turbines (WTs) equipped with a doubly fed induction generator (DFIG) is presented. DFIGs can be used as reactive power sources to control the voltage at the point of common coupling (PCC). The controller is designed to compensate for the voltage at the PCC by simultaneously regulating the reactive and active power generated by WTs. The performance of the controller is evaluated in different case studies considering a different number of wind farms in different locations. Simulations carried out on a real 37-bus weak distribution system confirmed that the proposed controller can enhance the FRT capability.
Keywords :
asynchronous generators; compensation; fuzzy control; power distribution control; power distribution faults; reactive power control; voltage control; wind turbines; 37-bus weak distribution system; DFIG; FRT capability; PCC; WT; controller design; controller performance; distribution networks; doubly fed induction generator; fault ride-through capability; fuzzy controller; point of common coupling; reactive power generation; reactive power sources; variable speed wind turbines; voltage compensation; voltage control; wind farms; Fuzzy logic; Reactive power; Rotors; Stator windings; Voltage control; Voltage fluctuations; Fault ride-through (FRT) capability; fuzzy logic controller; weak distribution networks; wind power generation;
Journal_Title :
Systems Journal, IEEE
DOI :
10.1109/JSYST.2012.2211812
