Design Team Ten Final Presentation ECE 480 FS08

Overview

Objective To design and develop a battery-supercapacitor hybrid system Team 10 KELD, LLC

Specifications  1kW Pulse Load for 18sec every 2minutes  Lithium Ion battery  Supercapacitor Team 10 KELD, LLC

Design Objectives  Design a battery to provide the average power to the load for at least 20 minutes.  Design a supercapacitor to provide the pulse power to the load.  Design and build a hybrid structure (or circuit configuration) of the battery and supercapacitor to provide needed power to the load.  Design and build a programmable load to simulate the pulsating load.  Test and demonstrate the hybrid energy storage system to prove that the constant power is from the battery and the pulse power of the load is from the supercapacitor.  Provide final report and suggestions to improve/optimize the system KELD, LLC

Design Objectives Completed  Constructed 14 Cell Battery Pack Lithium Polymer 3.7 Volts per Cell Program Control Module  Obtained a 165F Supercapacitor Max Voltage: 48V  Obtained 4 Millennium3 relays  Obtained 2 Heat Sinks Team 10 KELD, LLC

Design Objectives Completed  Constructed Battery-SuperCapacitor Hybrid System  Tested the system Team 10 KELD, LLC

Design Improvements  Design more robust battery pack  Attach a movable load  Better container  Better relays  Circuit Protection Team 10 KELD, LLC

Future Applications  Add Sensors  Voltage/Current Display  Automobiles  Cell phones  Computers Team 10 KELD, LLC

Thank you for your time Any Questions??? Team 10 KELD, LLC

Evolution of the Battery/Supercapacitor Hybrid System System 2 System 1System 3 System Volts - 5 x 165F Modules Farads Total Volts - 56 Li-Po Cells - 4 PCMs Volts - 28 Li-Po Cells - 2 PCMs - 2 x 165 F Modules Farads Total Volts - 14 Li-Po Cells - 1 PCM - 85 Farads Total - 3 Solid-State Relays - 1 Digital Relay Controller Team 10 KELD, LLC

Comparing Systems System System 2System 1System 3 System 4 Limitations: - Excessive Weight - High Cost - Low Energy Estimated Cost: $9000 Limitations: - Excessive Weight - Low Power - Limited Cycle Life Estimated Cost: $5900 Limitations: - Relatively High Cost - Performance Limited by Voltage Dependency Estimated Cost: $7400 Team 10 KELD, LLC

Team 10 KELD, LLC