Gain-Scheduled ${\cal H}_{\infty}$ Control for WECS via LMI Techniques and Parametrically Dependent Feedback Part II: Controller Design and Implementation

摘要: The control of wind-energy conversion systems (WECSs) is still a challenging task for design engineers. Despite being ubiquitous in the wind industry, performance classical proportional-integral-derivative controllers not ideal, and they require additional notch filters to handle turbine nonlinearity. This has triggered interest toward advanced concepts that are multiobjective multivariable. With optimality, feedback, robustness prerequisites developing policies guarantee high-integrity fault-tolerant systems, H∞ theory become standard method choice over past two decades gaining prominence industrial (and WECS) applications. Based on linear matrix inequality approach, this paper presents comprehensive systematic way applying algorithm automatically gain-scheduling linear-parameter-varying plant along parameter trajectories. Control seeks regulate both power voltage via synthesis controllers, namely, pitch generator torque, respectively, megawatt-class WECS. Digital simulations executed MATLAB/Simulink environment ascertain paradigm meets objectives optimizing throughout operating envelope, as well eliminating oscillations through system damping.