A Proportional Digital Controller to Monitor Load Variation in Wind Turbine Systems

José Gibergans-Báguena,Leonardo Acho,Gisela Pujol-Vázquez,Pablo Buenestado

doi:10.3390/en15020568

José Gibergans-Báguena, Leonardo Acho + Show 2 more

Open Access

https://doi.org/10.3390/en15020568

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Journal: Energies	Publication Date: Jan 13, 2022
Citations: 1	License type: CC BY 4.0

Affiliation: Universitat Politècnica de Catalunya

Abstract

Monitoring the variation of the loading blades is fundamental due to its importance in the behavior of the wind turbine system. Blade performance can be affected by different loads that alter energy conversion efficiency and cause potential safety hazards. An example of this is icing on the blades. Therefore, the main objective of this work is to propose a proportional digital controller capable of detecting load variations in wind turbine blades together with a fault detection method. An experimental platform is then built to experimentally validate the main contribution of the article. This platform employs an automotive throttle device as a blade system emulator of a wind turbine pitch system. In addition, a statistical fault detection algorithm is established based on the point change methodology. Experimental data support our approach.

Highlights

We present the mathematical model of load variation in the throttle device to emulate the load variation on the blade body of a wind turbine
It can be seen that the results show good performance, and the method can be used to discern a load variation on wind turbine
In many current shift point detection problems, researchers focus their efforts on the conjecture that the number of shift points is expected to increase as the series increases in number of data

Summary

Introduction

Wind turbines are a rapidly growing renewable energy option in today’s world [1]. These machines require maintenance approaches, for instance, to prevent malfunctions during power production [1]. Monitoring the variation of the loading blades in wind turbines is an important issue. This is because the dynamic of the blade system is affected by different loads that alter the efficiency of energy conversion and the possibility of causing potential safety hazards [2,3]. The deterioration or damage of wind turbine blades causes problems in the efficiency of power generation, and induces vibrations, increasing safety risks and maintenance costs. A blade system is an electromagnetic device located at the rotor of a wind turbine able to rotate longitudinally in both directions [1]

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