PRELIMINARY MULTIDOMAIN MODELLING AND SIMULATION STUDY OF A HORIZONTAL AXIS WIND TURBINE (HAWT) TOWER VIBRATION

I Iliyasu; I Iliyasu; IK Tanimu; DO Obada

doi:10.4314/njt.361.1221

PRELIMINARY MULTIDOMAIN MODELLING AND SIMULATION STUDY OF A HORIZONTAL AXIS WIND TURBINE (HAWT) TOWER VIBRATION

Authors

I Iliyasu DEPARTMENT OF MECHANICAL ENGINEERING, AHMADU BELLO UNIVERSITY, ZARIA, KADUNA STATE. NIGERIA.
I Iliyasu DEPT. OF SCI. LAB. TECH., SCHOOL OF APPLIED SCI., NUHU BAMAILI POLYTHECNIC, ZARIA, KADUNA STATE. NIGERIA.
IK Tanimu DEPARTMENT OF MECHANICAL ENGINEERING, FEDERAL UNIVERSITY, WUKARI, TARABA STATE. NIGERIA.
DO Obada DEPARTMENT OF MECHANICAL ENGINEERING, AHMADU BELLO UNIVERSITY, ZARIA, KADUNA STATE. NIGERIA.

DOI:

https://doi.org/10.4314/njt.361.1221

Keywords:

Wind Turbine, Tower Oscillation, Maplesim, Modeling and Simulation

Abstract

Renewable energy sources have gained much attention due to the recent energy crisis and the urge to get clean energy. Among the main options being studied, wind energy is a strong contender because of its reliability due to the maturity of the technology, good infrastructure and relative cost competitiveness. It is also interesting to note that there are physical limits to the potential height of a wind turbine tower since the mechanical structure of wind turbines are thus very flexible and tend to oscillate. This makes the design of wind turbines a demanding task. In this paper, the oscillation of a wind turbine tower due to imbalance in the masses of the blades is modeled in maplesim and the effect of the tower height on its oscillation was simulated. For a wind turbine with three rotor blades, two of which have masses of 10 kg, a mass moment of inertia of approximately 20 kg/m² and one of the blades has a moment of inertia which is 1% less than the other blades. The simulation showed the most stable system for the most energy capture for this case study to be a rotor speed of 5.5rad/s at a height of 10m. At this angular frequency the deflection of the top of the wind turbine was approximately 1mm.

http://dx.doi.org/10.4314/njt.v36i1.16

Downloads

Issue

Vol. 36 No. 1 (2017)

Section

Chemical, Industrial, Materials, Mechanical, Metallurgical, Petroleum & Production Engineering

License

The contents of the articles are the sole opinion of the author(s) and not of NIJOTECH.

NIJOTECH allows open access for distribution of the published articles in any media so long as whole (not part) of articles are distributed.

A copyright and statement of originality documents will need to be filled out clearly and signed prior to publication of an accepted article. The Copyright form can be downloaded from http://nijotech.com/downloads/COPYRIGHT%20FORM.pdf while the Statement of Originality is in http://nijotech.com/downloads/Statement%20of%20Originality.pdf

For articles that were developed from funded research, a clear acknowledgement of such support should be mentioned in the article with relevant references. Authors are expected to provide complete information on the sponsorship and intellectual property rights of the article together with all exceptions.

It is forbidden to publish the same research report in more than one journal.

How to Cite

PRELIMINARY MULTIDOMAIN MODELLING AND SIMULATION STUDY OF A HORIZONTAL AXIS WIND TURBINE (HAWT) TOWER VIBRATION. (2016). Nigerian Journal of Technology, 36(1), 127-131. https://doi.org/10.4314/njt.361.1221