Active and reactive power control of a grid connected speed sensor less DFIG based wind energy conversion system
- Resource Type
- Conference
- Authors
- Datta, Subir; Mishra, J. P.; Roy, A. K.
- Source
- 2015 International Conference on Energy, Power and Environment: Towards Sustainable Growth (ICEPE) Energy, Power and Environment: Towards Sustainable Growth (ICEPE), 2015 International Conference on. :1-6 Jun, 2015
- Subject
- Communication, Networking and Broadcast Technologies
Computing and Processing
Fields, Waves and Electromagnetics
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Rotors
Wind turbines
Stators
Mathematical model
Reactive power
Wind speed
Torque
Doubly Fed Induction Generator (DFIG)
Rotor Side Converter (RSC)
Grid Side Converter (GSc)
WECS
Speed sensor-less and MPPT etc
- Language
This paper presents the performance study of a speed sensor-less control of grid connected DFIG based variable speed Wind Energy Conversion System (WECS). A new phase locked loop (PLL) based slip speed estimator using rotor current is proposed for speed sensor-less stator field oriented vector control operation of rotor side converter (RSC) to ensure decoupled control of stator active and reactive power while maximizing the power generation at unity power factor under varying wind speed. The estimated slip speed is used for back emf compensation of rotor current controllers. Simulation has been carried out in MATLAB/Simulink environment and results show satisfactory operation of the proposed speed sensor-less DFIG based variable speed WECS.