hydrofly: fuel cell group group members: -adam lint -chris cockrell -dan hubbard sponsors:
DESCRIPTION
HydroFly: Fuel Cell Group Group Members: -Adam Lint -Chris Cockrell -Dan Hubbard Sponsors: -Dr. Herb Hess -Dr. Brian Johnson. HydroFly: Flywheel Group Group Members: -Gavin Abo -Nate Stout -Nathan Thomas. Two Groups: -Flywheel -Fuel Cell. - PowerPoint PPT PresentationTRANSCRIPT
HydroFly:
Fuel Cell Group
Group Members:
-Adam Lint
-Chris Cockrell
-Dan Hubbard
Sponsors:
-Dr. Herb Hess
-Dr. Brian Johnson
Two Groups:-Flywheel-Fuel Cell HydroFly:
Flywheel Group
Group Members:
-Gavin Abo
-Nate Stout
-Nathan Thomas
Design Review II:Final Design Review Outline
• Project Objectives• Project Introduction • Project Status• Design Description and Functionality
-DC/DC Converter-Inverter-Transformer-Control-Software-Zero Crossing Detection
• Schedule• Budgeting• Questions
Primary Objectives-Interface a Fuel Cell to the AMPS.
-Provide power to the AMPS
Secondary Objectives
-Produce an Operation Manual
-Protect the Fuel Cell and Interface
-User Safety
Introduction
Why are we interfacing the Fuel Cell to the Analog Model Power System?
-Alternative Energy Source
-Flexibility for the AMPS
Functional Specs
The specifications for the interface are the following:
• 18-36V DC input from the Fuel Cell
• Output 208 +/- 2 % V AC (L-L 3-phase)
• Output Voltage at 60Hz +/- 0.05Hz
• Max power flow of 200W for the interface
Overall System Layout
-DC/DC Converter
-Inverter
-Transformer
-Control
-Software
-Zero Crossing
Detection
Overall System Layout
-DC/DC Converter
-Inverter
-Transformer
- Control-Software
-Zero Crossing
Detection
Control
What does the Control do?
-Produces PWM -Synchronizes AC Systems-Controls Power Flow-Protects Fuel Cell and Interface-Monitors Zero Crossings-Calculations
How are these tasks accomplished?
-DSP TMS320LF2401A TI
PWM
Seven 16-Bit Pulse-Width Modulation (PWM) Channels Which Enable:
- Three-Phase Inverter Control
Synchronize AC Systems
-Magnitude
-Frequency
-Phase/Zero Crossings (30 degrees ahead)
Power Flow
P = |Vfc||Vamps|sin(δ)
X
L=181 mH
Q = |Vfc||Vamps|cos(δ) X
-|Vamps|^2
X
Protects Fuel Cell and Interface
Checks for undesired operation conditions
-PW on Zero Crossing
-Frequency variation
-Voltage differences
Other DSP tasks
-Monitors Zero Crossings
-Calculations
Overall System Layout
-DC/DC Converter
-Inverter
-Transformer
-Control
- Software-Zero Crossing
Detection
Software