Output power leveling of wind turbine generator by pitch angle control using H_∞ control

Abstract

SUMMARYEffective utilization of renewable energies such as wind energy is expected instead of the fossil fuels. Wind energy is not constant and windmill output is proportional to the cube of wind speed, which causes fluctuating power of wind turbine generator (WTG). In order to reduce the fluctuating power of WTG, this paper presents an output power leveling technique of WTG by pitch angle control using H ∞ control, and the control input of WTG linear model is separated from the disturbance. The simulation results using actual detailed model for WTG show the effectiveness of the proposed method.

A minimal order observer based frequency control strategy for an integrated wind-battery-diesel power system

“…This paper gathers some ideas from Ref. [12,13] and it is a continuation of the research on WTG. Hence, the WTG system is based on a fixed speed squirrel-cage induction generator.…”

“…Aerodynamic model of wind turbine generator system Fig. 3 shows the interrelationship between the basic modeled components of the WTG system [12,13]. From this figure, the pitch angle system controls the output of wind turbine, P g , depends on the wind velocity, V w .…”

Control Scheme of Hybrid Wind-Diesel System with SMES Using NSGA-II

“…Also in some cases defining the method's required parameters, such as membership functions in the case of fuzzy logic, is a long and complex task and may not lead to satisfied results. Also, H ∞ control method is applied to the blade pitch system of wind turbine [18,19]. However, the weighting functions in H ∞ control design cannot be easily selected that affects the process of design significantly.…”

Design of a Novel Intelligent Damping Controller for UPFC in Power System Connected Offshore Wind Power Applications

“…In recent years some small-scale offshore wind farms (OWFs) have been evaluated, while a number of large-scale OWFs have been constructed and are now in commercial operation. Researchers have examined induction generators with wound-rotor or cage-type rotors [2], [3], but in recent years there has been increasing interest in Permanent Magnet Synchronous Generators (PMSG). Such generators are attractive due to their compact structure, high air-gap flux density, high power density, high torque-to-inertia ratio, and high torque capability [4].…”