Confidential / Copyright © SD Group 06 Spr‘12 Final Presentation Project Specs & Challenges SD...

Confidential / Copyright © SD Group 06 Spr‘12

Final PresentationProject Specs & ChallengesSD Group 6:

Jean PierreJose ParedesLuigi EvalleAndres Escalante

August 03, 2012

August 3, 2012

Escalante, Evalle, Paredes, Pierre

© SD Group 06 Spr‘12

Senior Design Group VIGroup Members

Jean Pierre

Computer Engineering, B.S. Grad: Summer ‘12

Picture

Luigi Evalle

Picture

Electrical Engineering, B.S. Grad: Summer ‘12

Jose Paredes

Picture

Electrical Engineering, B.S. Grad: Fall ‘12

Andres Escalante

Electrical Engineering, B.S. Grad: Fall ‘12

Picture

August 3, 2012



Critical ReviewTable of Contents

Mechanical Aspect

Component Breakdown

2.

3.

Project Essentials1.

Testing4.

Milestones5.

Financials6.

August 3, 2012



Project EssentialsMain 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

-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

August 3, 2012



Project EssentialsDetailed Specifications

Detailed Specs:PV Panel (Max Rating): 17.5V/3.43A

(60W)DC/AC Inverter: 30WBattery: 120W/cell, 30Ah@Load Output: 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.

Detailed Specs:PV Panel (Max Rating): 17.5V/3.43A

(60W)DC/AC Inverter: 30WBattery: 120W/cell, 30Ah@Load Output: 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.

August 3, 2012



AC Output

Source Tracking

Project EssentialsGoals & Objectives

Source Tracking feature Will increase energy input at

small energy expense

Enhanced features:Complete Enclosure for ease of

PortabilityAC Output for extended time load-

bearing

Portability

Efficiency

Maximum Power Point Tracking Efficiency of at least 90%

August 3, 2012



Project EssentialsBlock Diagram

Project Breakdown

August 3, 2012




Mechanical Aspect

Component Breakdown

2.

3.


Testing4.

Milestones5.

Financials6.

August 3, 2012



EnclosureProject Physical Specs

Rotating Chair Base

Light-Weight Aluminum PV Frame

Wooden Enclosure & Circuitry

August 3, 2012




Mechanical Aspect

Component Breakdown

2.

3.


Testing4.

Milestones5.

Financials6.

August 3, 2012



Component InformationPhotovoltaic Panel

Luigi E.

Status: Acquired

Currently @ 100%

Component Info.

August 3, 2012



PV Panel TypesCrystaline v. Thin Film Technologies

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

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

August 3, 2012



PV Panel TypesMonocrystaline

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

August 3, 2012



PV PanelIncidence 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 sunFixed Angle (from horizontal) for Solar Panel in

Central FL Area

Summer 13 degrees

Spring/Fall 28 degrees

Winter 43 degrees

August 3, 2012



Component InformationBattery Component

Andres E.

Stat: Acquired

Currently @ 100%

Component Info.

August 3, 2012



Specifications

6 cells per unit, 12V output30Ah capabilityMin charge current 1 Amp400A Maximum discharge Surge current (~5 sec) Battery life ~90,000 hours

Convenience

Battery ComponentEATON 12V 120 W Sealed Lead Acid Battery (PWHR12120W3FR)

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).

*Calculations per cell; 6 cells per unit

August 3, 2012



Component InformationMax Power Point Tracker (MPPT) Unit

Luigi E

Status: Prototyped

Currently @ 100%

Component Info.

August 3, 2012



MPPT ComponentMaximum 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%

-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%

August 3, 2012



MPPT ComponentAlgorithms:

-3 different tracking AlgorigthmsIncremental ConductanceConstant VoltagePerturb 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.

-3 different tracking AlgorigthmsIncremental ConductanceConstant VoltagePerturb 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.

August 3, 2012



Charging StagesAlgorithms:

Average 120W Sealed Lead-Acid battery will take 12-16 Hours to fully chargeThe MPPT will charge the battery in 3 charging stages:oBulk Stage

MPPT will charge the battery at a constant charge current, increasing the battery’s voltage until it reaches cutoff voltage (70% Charge). oAbsorption Stage

As it charges the remaining 30% of the battery charge, the MPPT will slowly decrease the charge

current.oFloat Stage

At Float Stage, the MPPT insures the battery is fully charged with a stable lower constant charge current.

Average 120W Sealed Lead-Acid battery will take 12-16 Hours to fully chargeThe MPPT will charge the battery in 3 charging stages:oBulk Stage

MPPT will charge the battery at a constant charge current, increasing the battery’s voltage until it reaches cutoff voltage (70% Charge). oAbsorption Stage

As it charges the remaining 30% of the battery charge, the MPPT will slowly decrease the charge

current.oFloat Stage

At Float Stage, the MPPT insures the battery is fully charged with a stable lower constant charge current.

August 3, 2012



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

August 3, 2012



MPPT Component MPPT Schematic

August 3, 2012



Component InformationDC/AC Inverter

Jose P.

Status: Prototyped

Currently @ 100%

Component Info.

August 3, 2012



DC/AC InverterSpecs

-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

-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

August 3, 2012



DC/AC InverterSchematics

U1

PIC16F84A

RA21

RA32

RA4T0CKI3

MCLR4

VSS5

RB0INT 6

RB1 7

RB2 8

RB3 9

RB4 10

RB5 11

RB6 12

RB7 13

VDD 14

OSC2CLKOUT 15

OSC1CLKIN16

RA017

RA118

PTH08080WAH

LINEVREG

COMMON

VOLTAGE R1

47Ω

C11000µF

C2.22µF

C3.1µF

C4100µF

R2

10kΩ

R3

10kΩ

R4

470Ω

R5

470Ω

R622kΩ

R7

22kΩ

STP55N06L

STP55N06

F1

10_AMP

T1

TS_POWER_25_TO_1

V112 V

August 3, 2012



DC/AC InverterPrototype

August 3, 2012



Component InformationPV Panel Output Monitoring Unit

Jose P.

Status: Prototyped.

Currently @ 100%

Component Info.

August 3, 2012



Monitoring the Solar PanelSpecifications

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

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

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

August 3, 2012



Component InformationMicroController Unit

Jean P.

Status: Prototyped.

Currently @ 100%

Component Info.

August 3, 2012



Microcontroller Development Board Comparison ChartDevelopment Board Chip used

Comes with Chip?

Power jack w/ Voltage Regulator

USB Or Serial Interface

Programming Language Price

Arduino UNO - R3 ATMEGA328P YES YES USB C $29.95

Parallax Board of Education Development Board Basic Stamp 2 NO YES USB Basic $60.00

MSP430 Launchpad MSP430Fxx2 YES YES USB C $4.30

PICKit 2 Debug Express PIC16F887 YES NO USB

C/Assembly/Basic $49.99

Arduino Mega 2560 ATmega2560 YES YES USB C $53.95

40 Pin PIC Deveopment Board PIC18F4550 YES YES Serial/USB C/Assembly $37.95

MCU ComponentMCU Development Board Comparison Chart

August 3, 2012



•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

•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

MCU ComponentMicrochip PICkit 2 Debug Express

August 3, 2012



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

•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

August 3, 2012



MCU Component Class Diagram

August 3, 2012



Component InformationTracking Component (Photoresistor)

Jean P.

Status: Prototyped.

Currently @ 100%

Component Info.

August 3, 2012



Tracking ComponentPHOTORESISTOR

• 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

• 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

August 3, 2012



Component InformationLoad Control Monitoring Unit

Jean P.

Stat: Prototyped

Currently @ 100%

Component Info.

August 3, 2012



Load Control MonitoringPorpuse

With MCU through LCD visual output, we will display numerical values for:oVoltage output of PV paneloCurrent out of PV PaneloCurrent Angle of PV PaneloTemperature of PV panel

With MCU through LCD visual output, we will display numerical values for:oVoltage output of PV paneloCurrent out of PV PaneloCurrent Angle of PV PaneloTemperature of PV panel

August 3, 2012



Load MonitoringBlueTooth Module

JY-MCU HC-06 V1.03 Bluetooth Transceiver oBlueTooth Module uses serial communication to transmit data for data logging.oCan easily connect with BT-enabled computersoUses Rx,Tx pins of MCU’s AtMega 328 chip to transmit data

JY-MCU HC-06 V1.03 Bluetooth Transceiver oBlueTooth Module uses serial communication to transmit data for data logging.oCan easily connect with BT-enabled computersoUses Rx,Tx pins of MCU’s AtMega 328 chip to transmit data

August 3, 2012



Component InformationMotor Controller

Jean P.

Status: Prototyped

Currently @ 100%

Component Info.

August 3, 2012



Motor ControllerStepper Motor

-- Designed by Brian Schmalzhaus-- from Sparkfun.comSpecification:• 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

-- Designed by Brian Schmalzhaus-- from Sparkfun.comSpecification:• 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

Big Easy Driver: Bi-Polar Stepper

Motor Driver

August 3, 2012



Component InformationMotor Component

Jean P.

Status: Prototyped

Currently @ 100%

Component Info.

August 3, 2012



Stepper Motors Comparison ChartStepper Motor TYPE

WebsiteManufacturer ID

Holding Torque Oz-in

VoltageCurrent Rating A/phase

Type Weight kg Cost

Nema 23 Ebay57BYGH41-601B

55.00 12 Vdc 1.00 SIZE 23 0.47 $30.11

Nema 23 Ebay57BYGH41-401B

76.00 12 Vdc 2.80 SIZE 23 0.47 $30.11

Nema 23 Ebay57BYGH56-401A

175.00 12 Vdc 2.80 SIZE 23 0.71 $37.99

Lin Engineering

Alltronics.com

5718M-05E-04 124.21 12 Vdc 2.00 SIZE 23 N/A $19.95

NI NEMA 23National 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

Motor ComponentComparison

August 3, 2012



Stepper Motor Specifications:

Size: Nema 23 Step Angle: 1.8 deg Voltage: 7.5 VDC Current/Phase: 1.0 Amp/phase Resistance/phase: 20.0 mH/ phase Holding Torque: 212 oz-in

150 N-cm Detent Torque: 7.0 oz-in

5.0 N-cm Rotor Inertia: 2.08 on-in2

380 g-cm2 Weight: 1.87 lbs

0.85 kg Available step Modes:

Full, Half, Quarter, 1/8th and 1/16th Step

Stepper Motor Specifications:

Size: Nema 23 Step Angle: 1.8 deg Voltage: 7.5 VDC Current/Phase: 1.0 Amp/phase Resistance/phase: 20.0 mH/ phase Holding Torque: 212 oz-in

150 N-cm Detent Torque: 7.0 oz-in

5.0 N-cm Rotor Inertia: 2.08 on-in2

380 g-cm2 Weight: 1.87 lbs

0.85 kg Available step Modes:

Full, Half, Quarter, 1/8th and 1/16th Step

Motor ComponentSpecs

Worm Gear will limit movement while Stepper Motor is asleep.

August 3, 2012



Motor ComponentStepper Motor Schematic

August 3, 2012



Motor ComponentStepper Motor Tracking Algorithm

August 3, 2012



Component InformationLiquid Crystal Display

Andres E.

Status: Prototyped

Currently @ 100%

Component Info.

August 3, 2012



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.

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.

HD44780 2004 20x4 LCD Module W/ Blue backlightHD44780 2004 20x4 LCD Module W/ Blue backlight

Liquid Crystal DisplaySpecs

August 3, 2012



U1

GND

VCCCV

RSRW

E

D0D1D2D3D4D5D6D7

V15 V Battery

R1

10kΩKey=A

50%

GND

GND

MicrocontrollerArduino

Liquid Crystal DisplayPin Schematic of 20X4 LCD Module

August 3, 2012




Mechanical Aspect

Component Breakdown

2.

3.


Testing4.

Milestones5.

Financials6.

August 3, 2012



MPPT Test7/22/2012

Inside w/ DC Power Supply w/ No Tracking

Time: 0:37:33 DC Output V 17.37 V DC Current 2.34 A Room Temp 19.63 CTime: 0:38:36 DC Output V 17.30 V DC Current 3.25 A Room Temp 19.14 CTime: 0:39:39 DC Output V 17.22 V DC Current 3.25 A Room Temp 21.68 CTime: 0:41:14 DC Output V 17.22 V DC Current 3.24 A Room Temp 19.73 CTime: 0:41:45 DC Output V 17.67 V DC Current 3.07 A Room Temp 20.90 CTime: 0:42:17 DC Output V 17.37 V DC Current 2.53 A Room Temp 20.70 C

Max Voltage 17.67 V Max Current 3.25 AAvg Voltage 17.36 V Avg Current 2.95 A

18 V3.33 A60 W

Max MPPT Power Drawn @ 17.37 V 59.94 W3.25 A 56.45 W

56.45 W Efficiency of MPPT 94%

Test Conditions

DC Power Supply VoltageDC Power Supply Current

Max Power Output

Max power OutMax power In

Date:

Testing Information

Load V 70.9 VACLoad C 0.4 ALoad Power 28.36 W

August 3, 2012



Testing Information

7/26/2012Sunny w/ Tracking

Time: 1:42:34 PV Voltage = 16.39 V PV Current = 3.13 A PV_Temp = 42.38 C Panel_Angle = -74Time: 1:43:06 PV Voltage = 15.94 V PV Current = 2.91 A PV_Temp = 41.02 C Panel_Angle = -74Time: 1:43:38 PV Voltage = 15.71 V PV Current = 3.27 A PV_Temp = 43.55 C Panel_Angle = -74Time: 1:44:09 PV Voltage = 15.94 V PV Current = 2.58 A PV_Temp = 39.36 C Panel_Angle = -74Time: 1:44:41 PV Voltage = 15.96 V PV Current = 2.56 A PV_Temp = 41.70 C Panel_Angle = -74Time: 1:45:12 PV Voltage = 15.56 V PV Current = 3.29 A PV_Temp = 41.21 C Panel_Angle = -74


17.60 V3.41 A60 W

Max MPPT Power Drawn @ 16.39 V 59.94 W3.29 A 53.92 W

53.92 W 90%Efficiency of MPPT

DC Power Supply VoltageDC Power Supply Current

Max Power Output

Date:Test Conditions

PV Panel Max power Rating Max power drawn


August 3, 2012



Testing Information


7/22/2012Cloudy w/ Tracking

Time: 2:55:36 PV Voltage = 13.59 V PV Current = 0.79 A PV_Temp = 33.3 C Panel_Angle = 36Time: 2:56:10 PV Voltage = 13.97 V PV Current = 0.78 A PV_Temp = 35.94 C Panel_Angle = 36Time: 2:56:40 PV Voltage = 13.44 V PV Current = 0.78 A PV_Temp = 35.94 C Panel_Angle = 36Time: 2:57:14 PV Voltage = 13.59 V PV Current = 0.77 A PV_Temp = 35.84 C Panel_Angle = 36Time: 2:57:47 PV Voltage = 13.59 V PV Current = 0.76 A PV_Temp = 34.38 C Panel_Angle = 36Time: 2:58:19 PV Voltage = 13.90 V PV Current = 0.76 A PV_Temp = 34.96 C Panel_Angle = 36


13.59 V0.79 A

10.74 W

Max MPPT Power Drawn @

Date:Test Conditions

August 3, 2012




Mechanical Aspect

Component Breakdown

2.

3.


Milestones

Testing4.

5.

Financials6.

August 3, 2012



Milestone SchedulePer Semester

August 3, 2012



Progress By ComponentPercent Completion

August 3, 2012




Mechanical Aspect

Component Breakdown

2.

3.


Financials

Testing4.

Milestones5.

6.

August 3, 2012



BudgetPivot Table of Actuals vs. Forecast

Components Expenses Forecasted Budget

Remaining Budget

Battery $74.99 $150.00 $75.01

DC/AC Inverter $143.93 $50.00 $93.93

Enclosure $138.23 $160.00 $21.77

LCD $7.88 $10.00 $2.12

MCU $214.56 $180.00 $34.56

Misc $6.40 $10.00 $3.60

Motor $108.24 $80.00 $28.24

Motor Controller $30.39 $30.00 $0.39

MPPT $110.29 $130.00 $19.71

Solar Panel $146.33 $200.00 $53.67

Tracking $1.98 $10.00 $8.02

Grand Total $983.22 $1,010.00 $26.78Delta= 0.03

August 3, 2012



Thank you for your attention!

…Any Questions?

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