solar PV grid-tie system ongoing work in the electronic industry.

1. PV CORE METER
R. Drouin 1

2. INSTALLATION
CONCEPTION
During conception this chart was SOLAR Photo Voltaic PANEL (ELETRIC HEAT BACKUP) SLR MATRIX DEV.xl
drafted to compare alternative SELECT SYSTEM CONFIGURATION COLUMB C1, C2, C3, C4, C5, C6
POWER OUTPUT ( ALL ARE STRING TIE SYSTEMS)
available technologies STANDARD KILOWATT HOUR METER
OFF GRID
PUBLIC SERVICE NET METERING STATUS (PUBLIC SERVICE INSTALL NEED
BATTERY BACKUP
With price and performance trade
BENEFITS
off the 5 KW hybrid battery 1.5KW SCALEABLE STRING GRID TIE INVERTER (70%)
backed grid-tie architecture was R = POSSIBLE $ REFUND EXCESS POWER GENERATION
N =NO PUBLIC SERVICE SITE EVALUATION OR INSTALL
selected 5 = UP TO 5KW SCALEABLE STRING GRID TIE INVERTER
L = INSTALL LOWER COST FOR EVALUATE
REDUCE ELECTRIC BILL
MINIMAL POWER OUTAGE BACKUP
ELIMINATE ELECTRIC BILL
F = FULL POWER OUTAGE BACKUP
S = NO BATTERY TO SERVICE
PUBLIC SERVICE REBATES
PUBLIC SERVICE REBATES WITH BACKU
$ COST
WATT PER
C1 C2 C3 C4 C5 C6
Solar Panels
300-1.2KW C C X N LX X 2000 LATER 600 WATTS F
300 AND SO ON
2.5, 5KW C C X N 5 X X X F 23K
2.5K
2.5, 5KW C X R 5 X X X SX 20K
2.5K
2.5, 5KW C C X R 5 X X X F X X 24K LATER 5KW FOR +$2
2.5K
R. Drouin 2

3. WORK BREAKDOWN
STRUCTURE (WBS)
Developed an XL spreadsheet to
graphically convert a WBS into a
timeline to input into Microsoft
Project.
To the right is a sample
representation of the this XL
Program.
(The MS Project sample may be
added at a subsequent time)
R. Drouin 3

4. BOM $
An XL spreadsheet was
developed to
-identify each item
-price each item ITE
M
-total cost the system
DESCRIPTION VENDOR ordr # $SHIP $ EA QTY COST
PN date qty cst
$0.00
 This is important not only $0.00
for the build but for tax 1 SOLAR PANELS SUN ELECTRIC O 7363 387.64 382.2 6 $2,680.84
$2,293.2
rebate record. SUNELEC A210 SUN-A-210-FA3 D101020 0 $0.00
2 XANTREX MPPT O 7363 0 508.98 1 $508.98
CHARGE CONTROLLER XW-MPPT60-150 D101020 $508.98 $0.00
3 CONNECTORS MC 4 SUN ELECTRIC O 7363 19.98 2 $39.96
SOLAR PANEL CONN D101020 $39.96 $0.00
4 Unirac 300202 2-60" ALT-E O76416 53.32 97.41 4 $442.96
Rails, 4 L-Feet UNI300202 D101019 $389.64 $0.00
5 CABLE USE-2 10AWG FT ALT-E O76416 0 172.2 1 $172.20
500 FT GENUSE2RHW2SPL D101019 $172.20 $0.00
15 AMP DC DIN Rail Mount
6 CB ALT-E O76416 13 2 $26.00
GEN circuit breaker GENBRKDIN-15 D101019 $26.00 $0.00
R. Drouin 4

5. Dover , NH 3 rd
PV NET METERD SYSTEM
1st MOUNTING TO EXISTING BUILDING 2009
Combiner, MPPT charge controller,
Solar panels mounted on garage
and grid tie inverter
R. Drouin 5

6. SYSTEM
DESCRIPTION
4.5 KW 48 VDC 240 VAC SPLIT PHASE
MAXIMUM POWER POINT TRACKINT (MPPT) CHARGE
CONTROLLER.
HYBRID GRID TIE INVERTER BATTERY BACK RESIDENTIAL
GENERATOR INPUT FOR POWER OUTAGES LASTING
MORE THAN A DAY
POWER METER MONITOR
CAN NETWORK PROGRAMED AND MONITORED MPPT
CHARGE CONTROLLER AND HYBRID INVERTER
22 X 205 WATT 18 VDC 38 INCH BY 42 INCH SOLAR PANELS
R. Drouin 6

7. Results of
Commissioning
 -2009 Third net metered
system commissioned in
Dover, NH
 -NEC NFPA 70 (include article
690 Solar Photovoltaic System
 -Net metered to barter
Kilowatt-hours with the public
utility PSNH
R. Drouin 7

8. Initial Design in Orcad
R. Drouin 8

9. System Wiring Diagram
Substation electrical room wiring (inverter,
Wiring diagram to layout representation Charge controller, combiner)
R. Drouin 9

10. PV PERFORMANCE METER
EXISTING PATENT FOR TESTING SOLAR PANEL PERFORMANCE
LAYOUT OF TEST CONFIGURATION TEST CIRCUIT
INCLUDES “NEW SOLAR CELL” AND “SOLAR CELL UNDER TEST”
AMONG DETERMINATIONS INCLUDE WEEK PANEL OR PANELS TEST UNIT CAN BE MEASRUED IN PLACE UNER AMBIENT LIGHT
NEED CLEANING WITOUT HAVING TO REMOVE THE PANEL FROM MOUNTING
R. Drouin 10

11. SOLAR PANEL CORE
METER
o PRESUME THE PV
PERFORMANCE METER IS
COMPARE TO A DIGITAL
VOLT METER
o THE METERING PORTION
COULD BE DETERMINED TO
BE A CORE METER.
o METERS CAN BE USED TO
MEASURE MANY
PARMETERS: TEMPERATURE,
WEIGHT, LENGTH,
HUMIDITY, DISTANCE,
VOLUME, RPM, SPEED
o WHAT ELSE NEEDS
MEASUREING IN A PV
SYSTEM ENVIRONMENT
R. Drouin 11

12. PV CORE METER
A SINGLE INPUT IS LOADED AND MEASURED
PERSONAL
COMPUTER
DISPLAY
MICROCONTROLLER (uC)
SERIAL PARALLEL
AND, OR RF
LIQUID CRYSTAL
PHOTOVOLTAIC (PV) ANALOG TO DISPLAY (LCD)
PANEL DIGITAL
CONVERTER
POWER SWITCH BATTERY
VOLT PV A/D CHANNEL B POWER INDICATOR . BAT VDC
AMP PV A/D CHANNEL A SW COMMON ELECTRICAL
CURRENT CONNECTION
CURRENT A/D may be part of uC
SENSING
CIRCUIT DAC OUTPUT DIGITAL TO ANALOG
CONTROL CONVERTER (DAC)
CONTROL LINES
uC RUNNING AND DATA BUS
MAXIMUM POWER POINT TRACKING MAY BE
(MPPT) INTEGRATING DAC
FIRMWARE
CURRENT LOAD
CIRCUIT
Title
SOLAR PV CORE METERING BLOCK DIAGRAM
Size Document Number Rev
A DWG121203SMCB X1
Date: Monday , December 03, 2012 Sheet 1 of 1
R. Drouin 12

13. APPLICATION: PV PANEL
MAXIMUM STRING ACTIVATION
2011 SET OF PV PANELS WERE #.89 A
WATT
METERING SAMPLED AT
LOW DUTY CYCLE
PHOTOVOLTAIC (PV) DATA COMMUNICATION (COM) SERIAL PARALLEL
PANEL STRING AND, OR RF
INSTEAD OF TRACKING THE SUN 1 PV CORE
RL1
4 TO COMBINER BOX AND
METERING 3 CHARGE CONTROLLER
ELECTED TO SIMPLY FILL AVAILABEL 1
2
ARE WITH PV RELAY SPST
RL2
4 COM
3
1
WITH CONTINUAL GROWTH SCALING 2
COM TO PC INTERFACE
OF SYSTEM PV WILL REACH OVER RELAY SPST
SERIAL PARALLEL
RL3 AND, OR USB
100% OF CAPACITY AT MAXIMUM 3
4
PERSONAL
POWER PHOTOVOLTAIC (PV)
PANEL STRING COM
1
2
COMPUTER
2 PV CORE RELAY SPST
METERING OUTPUT
RL4 RELAY
4 MODULE
MOST HOUR OF THE DAY THE SUN 3
1
TRAJECTORY IS WELL BELOW 80% 2 PC RUNS PROGRAM THAT DETERMINS WHICH
PANELS PRODUCE THE MOST MPPT KILOWATTS
RELAY SPST THEN KEEPS ONLY THOSE PV STRING RELAYS
ENEGIZED
A METHOD IS NEEDED TO REDUCE COM
THE NUMBER OF STRINGS AT PEEK ... PV CORE
METERING
POWER
PHOTOVOLTAIC (PV)
PANEL STRING COM
X PV CORE
INSTEAD OF DEACTIVATING STRINGS METERING
INDISCRIMINANATLY, CIRCUIT TO THE
RIGHT WILL KEEP THOSE STRINGS ON
THAT ARE AT MAXIMUM POWER IN Title
SOLAR METER PV CORE APPLICATION
UNOBSTRUCTED SUNLIGHT Size Document Number Rev
A DWG121203SMCA X1
Date: Monday , December 03, 2012 Sheet 1 of 1
THIS MAKES USE OF THE PV CORE
METER
R. Drouin 13

14. PV METERED FLOW CHART
Top level flow chart . Declaratives
Initialize variables
Initialize DSP
Initialize LCD
P0 is the parameter of the prior A
to D sample
Manage DAC
Capture A to D
For P1
P1 is the parameter of the most
recent A to D sample.
Display data
This was used to target the MPPT
level by sequentially
approximating each bit through P1 > P0
the P1 > P0 process.
Manage Manage
Increment DAC Decrement DAC
parameters parameters
P0=P1
R. Drouin 14

15. PROGRAMMING
Programming of the
microcontroller using software
tools was done.
To the left is a sample code done
on Microchip’s MPLAB with soft
ice simulation of registers.
This section of code passes
commands to and LCD display
module.
R. Drouin 15

16. SOLAR 1SKY SUPPORT
Membership to Gimesound.com
providing support to 1sky.org to
promote a green economy.
Music may be found at.
http://www.gimmesound.com/Bob
Drouin/
Thank you
R. Drouin 16