DSPACE-based implementation for observer backstepping power control of DFIG wind turbine
Résumé
This work develops a real-time implementation on the DSPACE environment of an adaptive non-linear control strategy for a wind energy conversion system (WECS) based on the doubly-fed induction generator (DFIG). The DSPACE-DS1104 board is directly associated with an experimental bench of a wind power system. The non-linear backstepping controller has been realised to control the active and reactive powers of the DFIG connected directly to the electricity grid via two converters (grid side and machine side). First, a full review of the WECS is discussed. Subsequently, a detailed description of the backstepping control laws based on the Lyapunov stability technique is reported. Consequently, a simulation on the Matlab & Simulink environment was carried out to test the proposed control model in terms of performance and robustness. The second part of this work was devoted to the experimental validation of the adaptive backstepping control algorithm on a test bench to prove its efficiency. The results obtained show a perfect correlation between simulations and experiments (in static and dynamic regime) even for fluctuating wind speed.
Mots clés
power generation control
wind turbines
robust control
power grids
asynchronous generators
Lyapunov methods
wind power plants
nonlinear control systems
control nonlinearities
adaptive control
reactive power control
observers
power convertors
Stability in control theory
Power electronics
supply and supervisory circuits
Asynchronous machines
Control of electric power systems
Nonlinear control systems
Self-adjusting control systems
Power system control
Wind power plants
Power convertors and power supplies to apparatus