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Predicting long-term wind speed in wind farms of northeast Brazil: A comparative analysis through machine learning models
(2020-11-01)
The rapid growth of wind generation in northeast Brazil has led to multiple benefits to many different stakeholders of energy industry, especially because the wind is a renewable resource - an abundant and ubiquitous power ...
Bearing Fault Detection in Wind Turbines with Permanent Magnet Synchronous Machines
(Institute of Electrical and Electronics Engineers, 2014-11)
A strategy for the detection of bearing faults in variable speed wind turbines with permanent magnet synchronous machines is presented in this paper. The strategy consists on processing the measured vibration signals as ...
A Study of Influence of Configurations of the Windings on the Performance of Single Phase Induction Motor with Capacitor Start
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2009)
The single phase induction motors needs two stator windings to produce rotating magnetic field : one main winding and the other auxiliary winding. The aim of the auxiliary winding is to create the rotating electromagnetic ...
Indirect matrix converter modulation strategies for open-end winding induction machine
(2014)
In this paper an Indirect Matrix Converter (IMC) topology suitable for controlling an open-end winding induction machine is presented. The IMC is a direct power converter having no bulky energy storage elements with an ...
Rotor Demagnetization Effects on Permanent Magnet Synchronous Machines
(Elsevier, 2013-10)
The effects of asymmetrical magnet faults on the rotor of permanent magnet synchronous machines (PMSM) are analyzed in the present work. Two different stator winding configurations, series and parallel connected windings, ...
Conversion of Three-phase Commercial Machines into Six- phase Machines for Didactic and Research Purposes
(Institute of Electrical and Electronics Engineers, 2018-02)
Generally poly-phase machines are called those with more than three phases (> 3ph), these have acquired importance in recent years in specific applications such as wind power, electric vehicles, aeronautics, boat propulsion, ...
Rotor fault diagnosis in permanent magnet synchronous machine using the midpoint voltage of windings
(Institution of Engineering and Technology, 2020-02)
A new strategy is proposed here for the diagnosis of asymmetric demagnetisation in permanent magnet synchronous machines. The strategy is based on the measuring of the voltage at the midpoint of the windings within a phase. ...
Máquina de vetores de suporte e técnicas estatísticas para previsão e classificação de falha de turbinas eólicas
(Universidade Federal de Santa MariaBrasilUFSMCentro de Tecnologia, 2021-03-25)
Wind energy is dominant technology among the generation of renewable energies in Brazil and due to the high growth in recent years there is a need to develop accurate fault diagnosis techniques in wind turbines to reduce ...
Active Disturbance Rejection Control of Horizontal-Axis Wind Turbines
(2017-03-22)
Abstract. Wind turbines are complex nonlinear machines whose main objective is to convert the wind energy into electric power. These systems work in two main operating regions. In region 2, the energy captured must be ...