Wave Energy Converter Modeling in the Frequency Domain: A ...
Wave-to-Wire Model of an Ocean Wave Energy Converter
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Wave-to-Wire Model and Energy Storage Analysis of an Ocean Wave Energy Hyperbaric Converter Presented By: Md. Jakir Hossain Course No: EE 4130 Roll No: 1003033 Electrical and Electronic Engineering; KUET AUTHORS Edson H. Watanable; Senior Member, IEEE Jose Paulo Vilela Chunha; Member, IEEE
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A complete dynamic modelling of ocean wave energy converter with a set of methodology, energy storage and performance analysis
Transcript of Wave-to-Wire Model of an Ocean Wave Energy Converter
Wave-to-Wire Model and Energy Storage Analysis of an Ocean Wave Energy Hyperbaric Converter
Presented By: Md. Jakir HossainCourse No: EE 4130Roll No: 1003033Electrical and Electronic Engineering; KUET
AUTHORSEdson H. Watanable; Senior Member, IEEEJose Paulo Vilela Chunha; Member, IEEE
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OUTLINES
Dynamic Modeling of WEC
• Mathematical Modelling of the Accumulator
• Proposed Model for Generating Unit
Energy Storage Analysis
Simulation of Proposed Wave-to-Wire Model
• Illustration of the Performances
Evaluation of the Dynamic Behavior of the System
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Schematic of the WEC
Fig1: Schematic of the wave energy converter
PTO : Power Take-Off
WEC : Wave Energy Converter
INPH : National Institute of Waterways Research
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INPH Sea-state Occurrence Data
Fig2: Sea-state occurrence at Port of Pecem, Brazil
Wave Height (Hs)
Between 1 and 1.75m; 90%
Higher than 2m; 20%
Peak Wave Period (tp)
Range of 5-7s; 90%
Range of 12-20s; 20%
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Wave-to-Wire Model
Fig3: Basic block diagram of the wave-to-wire model
Pw = kwHw2tw kW
kw = (ρg2/32π) × 10-3 kg/m/s4
Pw = Power of the incident wave train
Hw = wave height
tw = wave period
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Accumulator Model
Fig4: Small-scale pumping modules at LabOceano
Fig5: Schematic representation of
the hydropneumatic accumulator
Ṗc = ϒmgRgTg[ (Qi - Qo) / (VT - Va)ϒ+1 ]
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Generating Unit Model
Fig6: Equivalent electric circuit of the synchronous generator (a) d-axis and (b) q-axis
Fig7: synchronous generator circuit (a) rotor and stator in the dq frame and
(b) stator connected to a three-phase load
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Fluctuations of Simulation Parameters
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Simulation Results
Fig8: Simulation results: Pumping unit variables and variables and mechanical power
for the islanded system and connected system
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Simulation Results
Fig9: Simulation results: Generating unit
variables for the islanded system
Fig10: Simulation results: Generating unit
variables for connected system
Conclusions
A complete mathematical wave-to-wire model is presented
The main subsystems of the converter were described
The dynamic models were integrated to evaluate storage of the system
A model for the generating unit was proposed
Simulation of the proposed model (1:10) were presented
Smoothing of system output using energy storage devices
The output electrical power was found to be 14 ± 0.0022% kW
The output terminal voltage is found to be 380 ± 0.001% Volt
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Thank You
