Adam Benjamin
Joel Wiechmann
Eric Wilson
Kevin Brokish
Joseph Wang
Capstone – Spring 2007 - PDR
Presentation Objectives
 Propose and Present the Project
 Convince of feasibility
 Demonstrate appropriate complexity
Presentation Outline
•Vision
•Mission
•Strategy
•Implementation
Vision
Inspiring a Vision
Vision
Mission
Purpose
of Existence
Mission Statement
The mission of SimBoulder is
to demonstrate the effective
integration of renewable energy
power sources
Baseline Objectives
 Model City Power Infrastructure
- residential, industrial, commercial and transportation
- varying load characteristics
- varying power usage based on time of day
 Integrate renewable and traditional power sources
- sense and control percentage of power taken from each
source
- integration of renewable and traditional sources
- storage of renewable and grid power
Baseline Objectives
 Measurement and Display
- traditional vs. renewable energy sources
- real-time power consumption
- Cost & Environmental foot print comparisons
 Energy Management Demo
- incandescent vs. fluorescent
- insulation
- conservation
Function Specifications
Boulder
 Pop. = 90,000
 Power consumption =
200 MW
 Size = 30 square miles
 Time = 24 hrs
SimBoulder
• Population = 0
• Power consumption =
2W
• Size = 8 square feet
• Time = 2.4 min
Ratio
Power consumption & Area = 100,000,000:1
Time = 600 : 1
Functional Specifications
Division of Energy
•Residential – 22%
•Industrial – 32%
•Transportation – 28%
•Commercial – 18%
Functional Specifications
Solar Specs
• 6 solar panels
• Rated 4V and 100 mA
• Lamp = “Sun”
Reservoir Specs
• Two fish tanks, a pump and a generator
• Build generator
• Don’t know yet generator specs or power
production capabilities
Possible Extensions
 Add wind power
 Advanced Peak Power Tracker
 More energy efficient loads
 Change from DC to AC
 Weather Simulations:
- Shadowing Effect (cloudy day)
- Drought (reservoir runs dry)
Strategic Approach
Creating a Strategy
Block Diagram
Light
Solar
Cells
Peak Power
Converter
Capacitor
Bank
Valve
Water
Generator
Pump
Converter
Relay
Power
Management
Circuitry
Two-way
Converter
CPU
UI
Battery
AC/DC &
Currentlimiting
Converter
City
Environment
Controller
Power Plant
Power
Controller
Block Diagram – CPU
AC/DC &
Current-limiting
Converter
PWM Chip
Valve
Gate
Driver
Gate
Driver
Dimmer
Switch
Light
Power Levels
from Various
Sources
Power
Management
Circuitry
TI MSP430
F1611
Gate
Drivers
M
User Input
Crystalfontz
CFAG12864BTFH-V
M
Block Diagram – Solar
Power
Management
Circuitry
Solar
Panels
PWM Chip
I/V Tracking
Circuitry
Block Diagram - Battery System
Battery
Emergency
Cutoff Circuit
MOSFET-controlled
buck or boost
converter
PWM Chip
I/V Tracking
Circuitry
Power
Management
Circuitry
Block Diagram - Water System
Power Plant
Switch
Pump
Water
CPU-Controlled
Valve
Generator
Converter
Power
Management
Circuitry
Block Diagram - Power Plant System
Power Plant
AC/DC
Converter
CPUControlled
Currentlimiting
Converter
Power
Management
Circuitry
Power Management Circuitry
Solar
Cells
Peak Power
Converter
Generator
Converter
Two-way
Converter
Capacitor
Bank
Battery
AC/DC &
Currentlimiting
Converter
City
Power
Controller
Implementation
Beginning to
Implement
Division of Labor
Name
Responsibilities
Adam Benjamin, Team Member
Converters/ Processor
Interfaces / Software
Eric Wilson, Team Member
Converters/ Processor
Interfaces
Joseph Wang, Team Member
Power Management
Circuitry
Joel Wiechmann, Team Member
Interface to CPUs/Peak
Power Tracker
Kevin Brokish, Team Member
Processor Interfaces
/Software/Peak
Power Tracker
Michael Lightner, Project Contact
Advisor
Cost Analysis
•
•
•
•
•
•
•
•
•
•
•
•
Solar Cell
Water Pump
LEDs (20-30)
City-building supplies
Generator equipment
Battery
Electrical components
Processor
LCD
Relay
2 Fish tanks
Total
$90
$50
$30
$75
$75
$20
$150
$40
$35
$10
$50
$625
Project Timeline
Risk Analysis
• Insufficient power generation from renewable sources
– Increase percentage of power generated from power plant
• Availability of generator turbine of size and efficiency
– Build our own generator
• Interference of noise and magnetic
– Shield circuits with appropriate capacitors
– Power trace layout on circuit board
Questions?