Maximum power tracking in WECS (Wind energy conversion systems) via numerical and stochastic approaches

M. Elnaggar, H.A. Abdel Fattah and A.L. Elshafei

Energy, 2014, vol. 74, issue C, 651-661

Abstract: This paper presents a complete design of a two-level control system to capture maximum power in wind energy conversion systems. The upper level of the proposed control system adopts a modified line search optimization algorithm to determine a setpoint for the wind turbine speed. The calculated speed setpoint corresponds to the maximum power point at given operating conditions. The speed setpoint is fed to a generalized predictive controller at the lower level of the control system. A different formulation, that treats the aerodynamic torque as a disturbance, is postulated to derive the control law. The objective is to accurately track the setpoint while keeping the control action free from unacceptably fast or frequent variations. Simulation results based on a realistic model of a 1.5 MW wind turbine confirm the superiority of the proposed control scheme to the conventional ones.

Keywords: Wind energy; Maximum power point tracking; Line search optimization; Predictive control (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:74:y:2014:i:c:p:651-661

DOI: 10.1016/j.energy.2014.07.031

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