Combination of super capacitor-switch type fault current limiter for LVRT enhancement of DFIG wind turbines
- Resource Type
- Conference
- Authors
- Divya S; Krishna Kumari T
- Source
- 2015 International Conference on Control Communication & Computing India (ICCC) Control Communication & Computing India (ICCC), 2015 International Conference on. :343-348 Nov, 2015
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Rotors
Wind turbines
Stators
Circuit faults
Voltage control
Switches
Doubly fed induction generator (DFIG)
Low Voltage Ride Through (LVRT)
Rotor side converter (RSC)
Grid side converter (GSC)
Wind energy conversion system (WECS)
super capacitor (SC)
switch type fault current limiter (STFCL)
- Language
An enhanced low voltage ride through (LVRT) control strategy for a doubly fed induction generator based wind energy conversion system (WECS) is presented in this paper. The control for the rotor side and grid side converter is simple compared to the other methods. And pitch control will enable when the rotor speed increase beyond the rated value to protect WECS. Grid side converter (GSC) control reduce the DC link fluctuation and rotor side converter (RSC) control decreases the transient current during the period of fault. The advantages of energy storage to improve the LVRT is also utilized. The Switch type fault current limiter (STFCL) effectively reduce the over current in the rotor side during the fault. Fault current limiting inductors are placed in series with the stator to limit the rotor over current during the fault. SFCL absorbs the excessive energy stored in the stator during the LVRT, for the protection of converters. The feasibility of the proposed method is validated by MATLAB/SIMULINK studies on a 1.5 MW DFIG system.