Combined maximum power point and yaw control strategy for a horizontal axis wind turbine

A linearization model is obtained for a three-bladed horizontal-axis wind turbine (HAWT) consisting of blades and a drive-train. Sensitivity analysis of the degree of controllability (DOC) and maximum power point tracking (MPPT) efficiency with respect to the structural parameters of wind turbines is discussed by numerical simulations. It is observed from the simulation results that higher MPPT efficiency can be achieved with the increase of DOC. Based on the observation, this paper proposes a new integrated design method based on DOC to design and optimize the structural parameters of a HAWT. The designed turbine is tested by the commercial simulation software of wind turbines named Bladed. It is observed from simulations that when using the identical MPPT control strategy, the wind turbine whose structural parameters are optimized for a larger value of DOC can achieve higher MPPT performance.

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Indirect Speed Control Strategy for Maximum Power Point Tracking of the DFIG Wind Turbine System

Revista Técnica "Energía" ◽

10.37116/revistaenergia.v17.n2.2021.426 ◽

2021 ◽

Vol 17 (2) ◽

pp. 92-101

Author(s):

Adrián Pozo ◽

Edy Ayala ◽

Silvio Simani ◽

Eduardo Muñoz

Keyword(s):

Wind Turbine ◽

Control Strategy ◽

Maximum Power Point Tracking ◽

Speed Control ◽

Maximum Power ◽

Maximum Power Point ◽

Point Tracking ◽

Power Point Tracking ◽

Wind Turbine System ◽

Power Point

In this In this article, a control strategy for Maximum Power Point Tracking (MPPT) of a wind turbine system based on a Doubly Fed Induction Generator (DFIG) is presented. The proposed strategy consists of the Indirect Speed Control (ISC) taking the Low Speed Shaft (LSS) as variable input. This implementation allows the MPPT to optimize the Power coefficient (Cp). The controller has been designed in order to allow the wind turbine to reach the MPPT along the partial load operation. For these experiments, a 1.5 MW wind turbine was modeled and simulated by using Matlab and Fatigue, Aerodynamic, Structure and Turbulence (FAST) software. In order to present the achieved results, a comparison between the ISC and a classical PI controller is made. The Cp curves as well as the output power display an important improvement in terms of stability. These results are possible because the appropriate values of optimal Tip Speed Ratio (TSR) and maximum Cp have been properly established. article, a control strategy for Maximum Power Point Tracking (MPPT) of a wind turbine system based on a Doubly Fed Induction Generator (DFIG) is presented. The proposed strategy consists of the Indirect Speed Control (ISC) taking the Low Speed Shaft (LSS) as variable input. This implementation allows the MPPT to optimize the Power coefficient (Cp). The controller has been designed in order to allow the wind turbine to reach the MPPT along the partial load operation. For these experiments, a 1.5 MW wind turbine was modeled and simulated by using Matlab and Fatigue, Aerodynamic, Structure and Turbulence (FAST) software. In order to present the achieved results, a comparison between the ISC and a classical PI controller is made. The Cp curves as well as the output power display an important improvement in terms of stability. These results are possible because the appropriate values of optimal Tip Speed Ratio (TSR) and maximum Cp have been properly established.

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