Analysis of Wind Power Quality Disturbances Due to Mechanical Defects in Gearbox using Acoustic Sensor and Current Transformer
T. Rameshkumar1, P. Chandrasekar2
1T Rameshkumar, Research Scholar, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai India.
2Dr. P. Chandrasekar, Ho D-EEE & Professor, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai India.
Manuscript received on 06 April 2019 | Revised Manuscript received on 11 May 2019 | Manuscript published on 30 May 2019 | PP: 1707-1712 | Volume-8 Issue-1, May 2019 | Retrieval Number: A1371058119/19©BEIESP
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Abstract: Power quality in wind turbines has become a major issue because of harmonic distortions, unbalance voltages, voltage fluctuations. Mainly harmonics occur in the wind mills if the rotor blades does not respond to the wind power. Moreover the gearbox in wind turbines does not respond to the rotor. Therefore, the mechanical power from the rotor is not properly transferred to the generator. Here to analyse the power quality of the wind turbines, two methods are proposed. Using an acoustic sensor on the gear box we can acquire the sound signals from the gear box attached to the rotor. From the sound signals we can analyse the harmonics present. And by using a current transformer in the load we can acquire the power signals and analysing the harmonics present in the signal. Finally performing a correlation of the two signals we can reduce the harmonics. The simulation results provides a reproduction of the signal without harmonics. The simulation results are carried out using Matlab.
Key words: Power Quality, Acoustic Sensors, Wind Energy
Scope of the Article: Mechanical Design