Experimental Validation of a Marine Current Turbine Simulator: Application to a Permanent Magnet Synchronous Generator-Based System Second-Order Sliding Mode Control
Abstract
This paper deals with the experimental validation of a Matlab-Simulink simulation tool of marine current turbine (MCT) systems. The developed simulator is intended to be used as a sizing and site evaluation tool for MCT installations. For that purpose, the simulator is evaluated within the context of speed control of a permanent magnet synchronous generatorbased (PMSG) MCT. To increase the generated power, and therefore the efficiency of an MCT, a nonlinear controller has been proposed. PMSG has been already considered for similar applications, particularly wind turbine systems using mainly PI controllers. However, such kinds of controllers do not adequately handle some of tidal resource characteristics such as turbulence and swell effects. Moreover, PMSG parameter variations should be accounted for. Therefore, a robust nonlinear control strategy, namely second-order sliding mode control, is proposed. The proposed control strategy is inserted in the simulator that accounts for the resource and the marine turbine models. Simulations using tidal current data from Raz de Sein (Brittany, France) and experiments on a 7.5-kW real-time simulator are carried out for the validation of the simulator.
Keywords
Marine current turbine (MCT)
Modeling
Nonlinear control
Permanent magnet synchronous generator (PMSG)
Second-order sliding mode (SOSM)
Simulation
Sliding mode control
Wind turbines
Permanent magnets
Synchronous generators
Wind energy generation
Computer languages
Context modeling
Velocity control
Power generation
Control systems
Angular velocity control
Machine control
Marine systems
Mathematics computing
Nonlinear control systems
Permanent magnet generators
PI control
Power engineering computing
Titdal power stations
Variable structure systems
Origin : Files produced by the author(s)
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