Final Presentation
Project Specs & Challenges
SD Group 6:
Jean Pierre
Jose Paredes
Luigi Evalle
Andres Escalante
August 03, 2012
Confidential / Copyright © SD Group 06 Spr‘12
Senior Design Group VI
Group Members
Jose Paredes
Jean Pierre
Picture
Picture
 Computer Engineering, B.S.
 Grad: Summer ‘12
Page 2
Luigi Evalle
Andres Escalante
Picture
Picture
 Electrical Engineering, B.S.
 Grad: Summer ‘12
 Electrical Engineering, B.S.
 Grad: Fall ‘12
August 3, 2012
 Electrical Engineering, B.S.
 Grad: Fall ‘12
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Critical Review
Table of Contents
1.
Project Essentials
2.
Mechanical Aspect
3.
Component Breakdown
4.
Testing
5.
Milestones
6.
Financials
Page 3
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Project Essentials
Main Project Overview
-Photovoltaic Panel
-Uses Maximum Power Point Tracking (MPPT) to
efficiently charge the battery
-Utilizes a DC to AC Inverter
-Supports a 120VAC Output
-MicroController Unit (MCU)
Enables PV Panel to track energy source
 Provides LCD visual output
 Uses BlueTooth technology for data logging
 Maximizes available Solar Radiation

Page 4
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Project Essentials
Detailed Specifications
Detailed Specs:
PV Panel (Max Rating):
DC/AC Inverter:
Battery:
@Load Output:
17.5V/3.43A (60W)
30W
120W/cell, 30Ah
30W
Source Tracking every 30 Minutes
Activates Stepper Driver for 5 mins every half-hour; powers
Stepper Motor, which moves PV Panel to track Light Source.

Page 5
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Project Essentials
Goals & Objectives
Source Tracking
 Source Tracking feature
 Will increase energy input at
small energy expense
Portability
AC Output
 Enhanced features:
 Complete Enclosure for ease of Portability
 AC Output for extended time load-bearing
Efficiency
Page 6
 Maximum Power Point Tracking
 Efficiency of at least 90%
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Project Essentials
Block Diagram
Project Breakdown
Page 7
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Critical Review
Table of Contents
1.
Project Essentials
2.
Mechanical Aspect
3.
Component Breakdown
4.
Testing
5.
Milestones
6.
Financials
Page 8
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Enclosure
Project Physical Specs
Wooden Enclosure & Circuitry
Rotating Chair Base
Light-Weight Aluminum PV Frame
Page 9
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Critical Review
Table of Contents
1.
Project Essentials
2.
Mechanical Aspect
3.
Component Breakdown
4.
Testing
5.
Milestones
6.
Financials
Page 10
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Photovoltaic Panel
Component Info.
 Luigi E.
 Status: Acquired
 Currently @ 100%
Page 11
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
PV Panel Types
Crystaline v. Thin Film Technologies
Crystalline PV Panels
Thin Film
Higher power per area
Output is less affected by temperature
More Efficient
Lower Cost per Watt
More available product options
More Shade tolerant
Monocrysalline
Polycrystalline
Thin Film
Efficiency
22.5%
11-15%
9%
Weight
12.7 lbs
13 lbs
30.2 lbs
Dimensions
33.25 in x 21.5 in
30.2 in x 26.38 in
39 in x 39 in
Price (w/ shipping)
$129.00
$179.99
$143.52
Page 12
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
PV Panel Types
Monocrystaline
•
•
•
•
•
•
•
Page 13
August 3, 2012
Monocrystalline:
-Cheaper, more efficient, Light
weight and Smallest Surface Area
Specifications:
-Max Power: 60 W
-Max Power Voltage: 17.6 V
-Max Current: 3.41 A
-Size: 33.25 in x 21.5 in
-Weight: 12.76 lb
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
PV Panel
Incidence Angle Calculation
Solar Angle of Incidence:
•
•
•
•
•
Solar panel's will more efficiently produce greater amounts of power when its oritentation
is exactly perpendicular to the light source feeding it.
Optimal angle depends on the geographic location of the solar panel and the current time of year.
The Solar panel will be adjusted to fixed angles depending on the season (summer, spring, fall or winter)
Various solar angle calculators may be found online
”EnergyWorksUs.com calculator was used as reference for this project
• Once the angle from the horizontal is set, the efficiency of the panels will be further increased by
utilizing solar tracking in order to have full exposure to the sun
Fixed Angle (from horizontal) for Solar Panel in Central FL Area
Page 14
Summer
13 degrees
Spring/Fall
28 degrees
Winter
43 degrees
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Battery Component
Component Info.
 Andres E.
 Stat: Acquired
 Currently @ 100%
Page 15
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Battery Component
EATON 12V 120 W Sealed Lead Acid Battery (PWHR12120W3FR)
Specifications
6 cells per unit, 12V output
30Ah capability
Min charge current 1 Amp
400A Maximum discharge Surge current (~5 sec)
Battery life ~90,000 hours
*Calculations per cell; 6 cells per unit
Convenience
Page 16
 Sealed construction.
 Flame-retardant design.
 Compact and low weight per avg. lead acid battery designs (23.6lbs,
4.9”x6.5”x6.9).
 Wide range of operating temperatures (5°F~104°F).
© SD Group 06 Spr‘12
August 3, 2012
Escalante, Evalle, Paredes, Pierre
Component Information
Max Power Point Tracker (MPPT) Unit
Component Info.
 Luigi E
 Status: Prototyped
 Currently @ 100%
Page 17
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MPPT Component
Maximum Power Point Tracking:
-Important because the voltage and current produced from the solar panel is variable
depending on the amount of sun exposure to the solar panel.
- The battery charges most efficiently 12V and 3 A.
- purpose is to obtain the largest amount of voltage vs. current from a solar array.
-voltage from solar panel goes to dc/dc converter which is parallel to MCU and
battery
-MCU chooses the maximum point at which the voltage and current will create the
maximum power output as depicted by the equation P = IV.
-Our goal: MPPT is to obtain efficiency of 90%
Page 18
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MPPT Component
Algorithms:
-3 different tracking Algorigthms
Incremental Conductance
Constant Voltage
Perturb and Observe
-Most widely used
-MPPT will adjust voltage by small incremental amounts
and measure the Power. It will continue increasing until
Power no longer increases.
Page 19
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Charging Stages
Algorithms:
Average 120W Sealed Lead-Acid battery will take 12-16 Hours to
fully charge
The MPPT will charge the battery in 3 charging stages:
o Bulk Stage
MPPT will charge the battery at a constant charge
current, increasing the battery’s voltage until it
reaches cutoff voltage (70% Charge).
o Absorption Stage
As it charges the remaining 30% of the battery
charge, the MPPT will slowly decrease the charge
current.
o Float Stage
At Float Stage, the MPPT insures the battery is fully
charged with a stable lower constant charge current.
Page 20
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MPPT Component
PIC16F88
Microcontroller used:
-Use the PIC16F88 microcontroller from Microchip
-Program Memory: 7168 bytes Flash, 4096 Single Word Instructions
-Data Memory: 368 bytes SRAM, 256 EEPROM bytes
-16 I/o Pin
-1 CCP (PWM)
-2 Comparators
-10-bit A/D
-Timers 8/16 bit: 2/1
Page 21
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MPPT Component
MPPT Schematic
Page 22
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
DC/AC Inverter
Component Info.
 Jose P.
 Status: Prototyped
 Currently @ 100%
Page 23
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
DC/AC Inverter
Specs
-30 watt.
-Uses a pic16f628a microcontroller
C Programming Language
-60 hertz produced by two waves from microcontroller.
-Stp55nf06l logic mosfet, 55 amps max current.
-Transformer wired backwards to attain high voltage.
-PCB space is 6 inches, 4 inches.
-Any AC load, no more than 30W.
-PTH08080WAH Switching Regulator
Per TI Datasheet, 93.5% Efficient
Page 24
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
DC/AC Inverter
Schematics
C4
100µF
C3
.1µF
COMMON
VREG
C2
.22µF
C1
1000µF
VOLTAGE
LINE
PTH08080WAH
R1
F1
47Ω
10_AMP
V1
12 V
STP55N06L
R4
U1
R3
10kΩ
R2
10kΩ
17
18
1
2
3
RA0
RA1
RA2
RA3
RA4T0CKI
4 MCLR
16 OSC1CLKIN
5
VSS
VDD
RB0INT
RB1
RB2
RB3
RB4
RB5
RB6
RB7
OSC2CLKOUT
14
6
7
8
9
10
11
12
13
15
470Ω
T1
R6
22kΩ
TS_POWER_25_TO_1
STP55N06
PIC16F84A
R5
470Ω
R7
22kΩ
Page 25
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
DC/AC Inverter
Prototype
Page 26
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
PV Panel Output Monitoring Unit
Component Info.
 Jose P.
 Status: Prototyped.
 Currently @ 100%
Page 27
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Monitoring the Solar Panel
Specifications
Why is it important:
-Efficiency calculations when comparing the efficiency of the
MPPT.
-Observe the effect of temperature on the solar panel's performance
Voltage Coming from Solar Panel:
-A voltage divider circuit will be used to calculate the voltage
produced by the solar panel
Current Coming from Solar Panel:
-ACS714 a hall effect-based current sensor
which will be surface mounted to the main
PCB. Chosen because it is accurate for low
current readings which range up to 5 A.
Specifications:
-Size: 0.7" x 0.8"
-Weight: 1.3 g
-Current Sensitivity: 0.185V/A
-Max Logic Voltage: 4.5 - 5.5V
-VCC: 5 V
-Current input: -5A - 5A
Page 28
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
MicroController Unit
Component Info.
 Jean P.
 Status: Prototyped.
 Currently @ 100%
Page 29
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MCU Component
MCU Development Board Comparison Chart
Microcontroller Development Board Comparison Chart
Development
Board
Arduino UNO R3
Chip used
Power jack w/
USB Or Serial
Comes with Chip? Voltage Regulator Interface
Programming
Language
ATMEGA328P
YES
YES
USB
C
$29.95
NO
YES
USB
Basic
$60.00
YES
YES
USB
C
PIC16F887
YES
NO
USB
C/Assembly/Basic
$49.99
ATmega2560
YES
YES
USB
C
$53.95
PIC18F4550
YES
YES
Serial/USB
C/Assembly
$37.95
Parallax Board of
Education
Development
Board
Basic Stamp 2
MSP430
Launchpad
MSP430Fxx2
PICKit 2 Debug
Express
Arduino Mega
2560
40 Pin PIC
Deveopment
Board
Page 30
August 3, 2012
Price
$4.30
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MCU Component
Microchip PICkit 2 Debug Express
•Comes with PICkit 2 Development Programmer/Debugger
Needed to program PIC microcontrollers in our program.
• 44-pin Demo board with PIC16F887 Midrange PIC
microcontroller
• Has 12 lessons on assembly programming to cover I/O, A/D
converters, timers, interrupts, etc.
• Several lessons on using C language to program microcontrollers
Page 31
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MCU Component
Microcontroller ATmega2560
•Operating Voltage: 5V
•Input Voltage (recommended): 7-12V
•Input Voltage (limits): 6-20V
•Digital I/O: Pins 14
(of which 6 provide PWM output)
•Analog Input Pins: 6
•DC Current per I/O Pin 40mA
•DC Current for 3.3V Pin 50mA
•Flash Memory: 32 KB
of which .5 KB used by bootloader
•SRAM: 2 KB
•EEPROM: 1 KB
•Clock Speed: 16 MHz
Page 32
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
MCU Component
Class Diagram
Page 33
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Tracking Component (Photoresistor)
Component Info.
 Jean P.
 Status: Prototyped.
 Currently @ 100%
Page 34
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Tracking Component
PHOTORESISTOR
• Size: 5.00x4.00mm
• Resistance on light: 5k-20k ohm
• Resistance in darkness: 1M ohm
• Max Voltage: 150V (DC)
• Peak Sensitivity: 560nm
• Sensitivity Range: CdS cells respond to light
between 400nm (violet) and 600nm (orange)
wavelengths, peaking at about 520nm (green).
• Power Supply: use less than 1mA for up to
100V (depending on power supply)
• Max power consumption: 100mW
• Operating temperature: -30 to +70°C
Page 35
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Load Control Monitoring Unit
Component Info.
 Jean P.
 Stat: Prototyped
 Currently @ 100%
Page 36
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Load Control Monitoring
Porpuse
With MCU through LCD visual output,
we will display numerical values for:
o Voltage output of PV panel
o Current out of PV Panel
o Current Angle of PV Panel
o Temperature of PV panel
Page 37
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Load Monitoring
BlueTooth Module
JY-MCU HC-06 V1.03 Bluetooth Transceiver
o BlueTooth Module uses serial communication to transmit data
for data logging.
o Can easily connect with BT-enabled computers
o Uses Rx,Tx pins of MCU’s AtMega 328 chip to transmit data
Page 38
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Motor Controller
Component Info.
 Jean P.
 Status: Prototyped
 Currently @ 100%
Page 39
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Motor Controller
Stepper Motor
Big Easy Driver:
Bi-Polar Stepper Motor Driver
-- Designed by Brian Schmalzhaus
-- from Sparkfun.com
Specification:
• Bi-polar Micro stepping Driver used for Bi-Polar
Stepper Motors
• Drive motor up to 2A/Phase Max
• Max Motor Drive Voltage: 35V
• On-board 5V/3.3V Regulation to use for
Microcontroller
• Board can drive motor in Full Step, Half-Step,
Quarter-Step, 1/8th –Step, 1/16th –Step
• Motor with 200 steps per revolution, require 3200
steps/rev for full revolution
• Comes with Eagle board files and schematic
• Overcurrent
Protection
with Potentiometer
Page 40
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Motor Component
Component Info.
 Jean P.
 Status: Prototyped
 Currently @ 100%
Page 41
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Motor Component
Comparison
Stepper Motors Comparison Chart
Stepper
Motor
TYPE
Website
Nema 23
Ebay
Nema 23
Ebay
Nema 23
Ebay
Voltage
Current
Rating
A/phase
Type
Weight kg
Cost
55.00
12 Vdc
1.00
SIZE 23
0.47
$30.11
76.00
12 Vdc
2.80
SIZE 23
0.47
$30.11
175.00
12 Vdc
2.80
SIZE 23
0.71
$37.99
124.21
12 Vdc
2.00
SIZE 23
N/A
$19.95
Manufacturer Holding
ID
Torque Oz-in
57BYGH41601B
57BYGH41401B
57BYGH56401A
Lin
Alltronics.co
5718M-05E-04
Engineering m
NI NEMA 23
National
Instrument
780073-01
180.00
12 Vdc
0.40
SIZE 23
N/A
$139.00
Nema 23
Ebay
23HS6410-02A
212.00
12 Vdc
1.00
SIZE 23
0.85
$45.00
AMCI
AMCI.com
SM23
240.00
12 Vdc
2.00
SIZE 23
0.99
N/A
Page 42
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Motor Component
Specs
Stepper Motor Specifications:
Size:
Step Angle:
Voltage:
Current/Phase:
Resistance/phase:
Holding Torque:
Detent Torque:
Rotor Inertia:
Weight:
Nema 23
1.8 deg
7.5 VDC
1.0 Amp/phase
20.0 mH/ phase
212 oz-in
150 N-cm
7.0 oz-in
5.0 N-cm
2.08 on-in2
380 g-cm2
1.87 lbs
0.85 kg
Available step Modes:
Full, Half, Quarter, 1/8th and 1/16th Step
Page 43
August 3, 2012
Worm Gear will limit movement
while Stepper Motor is asleep.
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Motor Component
Stepper Motor Schematic
Page 44
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Motor Component
Stepper Motor  Tracking Algorithm
Page 45
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Component Information
Liquid Crystal Display
Component Info.
 Andres E.
 Status: Prototyped
 Currently @ 100%
Page 46
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Liquid Crystal Display
Specs
HD44780 2004 20x4 LCD Module W/ Blue backlight
LCD specs:
• Module Size(W×H×T):
98.0×60.0×14.0mm
• Viewing Area(W×H): 76.0×26.0 mm
• Character Size(W×H): 2.94×4.74
• Dot Size(W×H): 0.54×0.54mm
• Operating Voltage: 4.5 – 5.5 V
• Operating Current: 1.0 – 2.2 mA
• Can run in 4-bit or 8-bit mode.
• Easily interface with Arduino using
LiquidCrystal library.
• Customizable contrast levels for high
visibility during high glare conditions.
Page 47
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Liquid Crystal Display
Pin Schematic of 20X4 LCD Module
U1
R1
VCC
CV
GND
GND
E
RS
RW
10kΩ
50%
Key=A
V1
5V
Battery
D7
D6
D5
D4
D3
D2
D1
D0
Microcontroller
Arduino
GND
Page 48
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Critical Review
Table of Contents
1.
Project Essentials
2.
Mechanical Aspect
3.
Component Breakdown
4.
Testing
5.
Milestones
6.
Financials
Page 49
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Testing Information
Load V
70.9 VAC
Load C
0.4 A
Load Power 28.36 W
MPPT Test
Date:
7/22/2012
Test Conditions Inside w/ DC Power Supply w/ No Tracking
Time:
Time:
Time:
Time:
Time:
Time:
Max Voltage
Avg Voltage
0:37:33 DC Output V
0:38:36 DC Output V
0:39:39 DC Output V
0:41:14 DC Output V
0:41:45 DC Output V
0:42:17 DC Output V
17.67 V
17.36 V
17.37 V
17.30 V
17.22 V
17.22 V
17.67 V
17.37 V
Max Current
Avg Current
DC Current
DC Current
DC Current
DC Current
DC Current
DC Current
2.34 A
3.25 A
3.25 A
3.24 A
3.07 A
2.53 A
Room Temp
Room Temp
Room Temp
Room Temp
Room Temp
Room Temp
19.63 C
19.14 C
21.68 C
19.73 C
20.90 C
20.70 C
3.25 A
2.95 A
DC Power Supply Voltage 18 V
DC Power Supply Current 3.33 A
Max Power Output 60 W
Max MPPT Power Drawn @
Page 50
17.37 V
3.25 A
56.45 W
August 3, 2012
Max power In
Max power Out
Efficiency of MPPT
59.94 W
56.45 W
94%
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Testing Information
Load V
70.9 VAC
Load C
0.4 A
Load Power 28.36 W
Date:
7/26/2012
Test Conditions Sunny w/ Tracking
Time:
Time:
Time:
Time:
Time:
Time:
Max Voltage
Avg Voltage
1:42:34 PV Voltage =
1:43:06 PV Voltage =
1:43:38 PV Voltage =
1:44:09 PV Voltage =
1:44:41 PV Voltage =
1:45:12 PV Voltage =
16.39 V
15.92 V
16.39 V
15.94 V
15.71 V
15.94 V
15.96 V
15.56 V
Max Current
Avg Current
PV Current =
PV Current =
PV Current =
PV Current =
PV Current =
PV Current =
3.13 A
2.91 A
3.27 A
2.58 A
2.56 A
3.29 A
PV_Temp =
PV_Temp =
PV_Temp =
PV_Temp =
PV_Temp =
PV_Temp =
42.38 C
41.02 C
43.55 C
39.36 C
41.70 C
41.21 C
Panel_Angle =
Panel_Angle =
Panel_Angle =
Panel_Angle =
Panel_Angle =
Panel_Angle =
-74
-74
-74
-74
-74
-74
3.29 A
2.96 A
DC Power Supply Voltage 17.60 V
DC Power Supply Current 3.41 A
Max Power Output 60 W
Max MPPT Power Drawn @
Page 51
16.39 V
3.29 A
53.92 W
August 3, 2012
PV Panel Max power Rating
Max power drawn
Efficiency of MPPT
59.94 W
53.92 W
90%
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Testing Information
Load V
70.9 VAC
Load C
0.4 A
Load Power 28.36 W
Date:
7/22/2012
Test Conditions Cloudy w/ Tracking
Time:
Time:
Time:
Time:
Time:
Time:
Max Voltage
Avg Voltage
2:55:36 PV Voltage =
2:56:10 PV Voltage =
2:56:40 PV Voltage =
2:57:14 PV Voltage =
2:57:47 PV Voltage =
2:58:19 PV Voltage =
13.97 V
13.68 V
Max Current
Avg Current
Max MPPT Power Drawn @
Page 52
13.59 V
13.97 V
13.44 V
13.59 V
13.59 V
13.90 V
August 3, 2012
13.59
0.79
10.74
PV Current =
PV Current =
PV Current =
PV Current =
PV Current =
PV Current =
0.79 A
0.78 A
0.78 A
0.77 A
0.76 A
0.76 A
PV_Temp =
PV_Temp =
PV_Temp =
PV_Temp =
PV_Temp =
PV_Temp =
33.3 C
35.94 C
35.94 C
35.84 C
34.38 C
34.96 C
Panel_Angle =
Panel_Angle =
Panel_Angle =
Panel_Angle =
Panel_Angle =
Panel_Angle =
0.79 A
0.77 A
V
A
W
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
36
36
36
36
36
36
Critical Review
Table of Contents
1.
Project Essentials
2.
Mechanical Aspect
3.
Component Breakdown
4.
Testing
5.
Milestones
6.
Financials
Page 53
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Milestone Schedule
Per Semester
Page 54
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Progress By Component
Percent Completion
Page 55
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Critical Review
Table of Contents
1.
Project Essentials
2.
Mechanical Aspect
3.
Component Breakdown
4.
Testing
5.
Milestones
6.
Financials
Page 56
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Budget
Pivot Table of Actuals vs. Forecast
Components
Battery
DC/AC Inverter
Enclosure
LCD
MCU
Misc
Motor
Motor Controller
MPPT
Solar Panel
Tracking
Grand Total
Page 57
August 3, 2012
Expenses
Forecasted
Budget
Remaining
Budget
$74.99
$150.00
$75.01
$143.93
$50.00
$93.93
$138.23
$160.00
$21.77
$7.88
$10.00
$2.12
$214.56
$180.00
$34.56
$6.40
$10.00
$3.60
$108.24
$80.00
$28.24
$30.39
$30.00
$0.39
$110.29
$130.00
$19.71
$146.33
$200.00
$53.67
$1.98
$10.00
$8.02
$983.22
$1,010.00
$26.78
Delta=
0.03
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre
Thank you for your attention!
…Any Questions?
Page 58
August 3, 2012
© SD Group 06 Spr‘12
Escalante, Evalle, Paredes, Pierre