Improving the Energy Conversion Efficiency for Hydrokinetic Turbines Using MPPT Controller

The research presented in this paper involves the design of a power control system for a hydrokinetic turbine previously tested in real operating conditions. A maximum power point tracking (MPPT) algorithm was designed and simulated using the required parameters for a specific electric generator. Th...

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Bibliographic Details
Published in:Applied sciences 2020-11, Vol.10 (21), p.7560
Main Authors: Chihaia, Rareș-Andrei, Vasile, Ionuț, Cîrciumaru, Gabriela, Nicolaie, Sergiu, Tudor, Emil, Dumitru, Constantin
Format: Article
Language:English
Subjects:
Algorithms
Alternative energy sources
Buck converters
Cavitation
Control algorithms
Control systems
Control systems design
Controllers
Design
Direct current
Efficiency
electric generator
Electric generators
Energy conversion
Energy conversion efficiency
energy efficiency
Energy industry
hydrokinetic turbines
MPPT
MPPT controller
Neural networks
Optimization
Simulation
Turbines
Velocity
Water velocity
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Summary:The research presented in this paper involves the design of a power control system for a hydrokinetic turbine previously tested in real operating conditions. A maximum power point tracking (MPPT) algorithm was designed and simulated using the required parameters for a specific electric generator. The proposed system consists of a generator connected to the hydrokinetic turbine, a three-phase uncontrolled rectifier, a direct current (DC) boost converter with MPPT control to extract maximum available power, and a buck converter to control the amount of power delivered to the load. In order to test the MPPT algorithm, we built the individual blocks on the basis of the corresponding equations of each component. The algorithm considered the specific parameters of the previously tested turbine as input data and simulated the same water velocities for which the turbine had been tested. Thus, the simulation predicted a power output of 105 W for a water velocity of 1.33 m/s, 60 W for 1 m/s, and 30 W for 0.83 m/s. The efficiency of the control system was demonstrated when the instantaneous power value was maintained at a maximum point, regardless of the rotational speed according to the experimental power curves of the driving rotor obtained for certain water velocities.
ISSN:2076-3417
2076-3417
DOI:10.3390/app10217560