MODELLING THE HYDROKINETIC TURBINE

Hydrokinetic turbines are an emerging type of hydroenergy converters used for small rivers and streams usually in run-of-the-river installations. Run-of-the-river installations are micro-hydropower plants built without significantly altering the natural flow of the river (no dams, no reservoir). The...

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Bibliographic Details
Published in:Acta Technica Corvininesis 2023-07, Vol.16 (3), p.37-39
Main Authors: Ichim-burlacu, Cătălin-Ioan, Rat, Cezara-Liliana
Format: Article
Language:English
Subjects:
Alternative energy sources
Controllability
Creeks & streams
Efficiency
Energy conversion
Energy resources
Hydroelectric plants
Hydroelectric power
Materials science
Mathematical analysis
Mathematical models
Polynomials
Regression models
Renewable resources
Reservoirs
Rivers
Turbines
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Summary:Hydrokinetic turbines are an emerging type of hydroenergy converters used for small rivers and streams usually in run-of-the-river installations. Run-of-the-river installations are micro-hydropower plants built without significantly altering the natural flow of the river (no dams, no reservoir). They represents one of the most environment friendly hydropower plants available today. In order for these turbines to be deemed a cost effective solution, extensive research is required. To this end, a mathematical model of the hydrokinetic turbine is required. The aim of this paper is to determine a model of a hydrokinetic turbine using polynomial regression. A model is necessary for simulating the energy conversion system which is, in turn, necessary for designing the control of the system, the protection, etc. The power coefficient on which the model is based describes the efficiency of the turbine in extracting power from the water. It is highly dependent on the characteristics of the turbine: its type, shape, dimensions, material, etc. However, the power coefficient is seldom provided by literature. Therefore, being able to obtain an estimative relationship based on experimental data is a necessity. Since hydrokinetic turbines have a very different, less controllable installation compared cu conventional hydropower plants (zero head with no reservoir), they are modelled in a completely different fashion.
ISSN:2067-3809