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To ensure safe and reliable operation of power system based on wind energy, usually plant operators should satisfy grid code requirements such as grid stability, fault ride through (FRT), power quality improvement, grid synchronization and power control etc. To satisfy the grid code requirements of wind turbine, usually grid side converter is playing a major role. So in order to improve the operation...
This paper presents a control method that reduces the pulsating torque and dc voltage problems of a Doubly Fed Induction Generator (DFIG)-based wind turbine system. To reduce the torque and the power ripple, a current control scheme, consisting of a proportional integral (PI) controller, is presented in a positive synchronously rotating reference frame and is capable of providing a precise current...
This paper deals with the coordinated control of rotor- and grid-side converters in wind turbines with doubly fed induction generators (DFIGs) to improve the low-voltage ride-through capability. The rotor-side converter control and additional equipment, called stator damping resistor, are used to limit the rotor inrush current and to reduce the oscillations and settling time of DFIG transient response...
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