Variable Inductance for Solar Power Applications Shane McMorrow
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Transcript of Variable Inductance for Solar Power Applications Shane McMorrow
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Variable Inductance for Solar Power Applications
Shane McMorrow
Supervisor Prof. Ger Hurley
Co-SupervisorDr. Maeve Duffy
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Project Outline
Primary Aims– Investigate Sloped Air Gapped (SAG) inductors– Design and build a DC/DC converter capable of providing
impedance matching for a variable power source– Determine the internal resistance of the variable power supply to
allow impedance matching design– Determine the L-i characteristics of the SAG inductor for the buck
converter to remain in continuous conduction mode– Design a SAG to provide these L-i characteristics– Implement in hardware
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System Design
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Design Steps
Review & research – Photovoltaic Solar Panels– Buck Converters & impedance matching– SAG inductors
Simulation of a PV solar panel to obtain output characteristics Setting up buck converter equations to calculate duty cycle for
impedance matching and minimum inductance requirements Simulation and design of a SAG inductor which meets minimum
inductance requirements
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Simulation of the PV Solar Panel
Initial simulation of a solar cell using PSpice
PV Solar Panel (Sanyo HIP-210NH1-BO-1) simulated using Matlab
Primary aim of this simulation was to obtain the internal resistance of the solar panel for all light levels
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Results of simulation
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Key Buck Converter Equations
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Results
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Inductor types
Air GappedInductor
SwingingInductor
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SAG Inductor
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SAG Vs Swinging Inductor
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Changing the Slope
OriginalLower Gradient
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Versatility of the SAG Inductor
Lower Gradient
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Going to zero slope
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Recap of Designed SAG Inductor
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Simulated System input Characteristics
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Simulated System Output Characteristics
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Future Considerations
Making the slope on a sloped air gapped inductor curved
combine a swinging inductor design with a sloped air gapped design
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Questions?