System selection for Stand-alone PV-DG Hybrid system 2th Annual Solar Energy South East Asia Dr. Wuthipong Suponthana, PhD. Leonics Co., Ltd. Thailand. Phone: +66 8 1815 3787/ Email: [email protected]System selection for S System selection for S tand tand - - alone PV alone PV - - DG DG Hybrid system Hybrid system 2th Annual Solar Energy South East Asia Dr. Wuthipong Suponthana, PhD. Leonics Co., Ltd. Thailand. Phone: +66 8 1815 3787/ Email: [email protected]
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System selection for S tandtand--alone PV-DG tand …...Night time round trip supply load DC Coupling 88.20% 93.1% 79.60% AC Coupling 82.08% 96.0% 74.07% 2th Annual Solar Energy South
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System selection for Stand-alone PV-DG
Hybrid system 2th Annual Solar Energy South East Asia
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
Cost of Energy
(USD/kWh)
PV AC Coupling PV DC Coupling
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
The Hybrid DC and AC coupling Hybrid DC and AC coupling can benefit by using better point of both PV at DC and AC coupling.
96%
98%
Direct Supply load 96%
form AC Coupling
Direct Charge Battery 98%
From DC Coupling
Balance fluctuation
of the Sun
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
Bidirectional InverterMPPT Charge Controller
Grid Connect Inverter
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
MPPT Charge Controller
Grid Connect Inverter
Bidirectional Inverter
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
95%
Supply Night time Load
With efficiency 95%
form Battery
The Hybrid DC and AC coupling Hybrid DC and AC coupling can benefit by using better point of both PV at DC and AC coupling.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
MPPT Charge ControllerBidirectional Inverter
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
HOMER Pro simulation with DC and AC coupling
with real village load profile
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
Hybrid DCHybrid DC--AC design approachAC design approachHybrid DCHybrid DC--AC Coupling can improve system efficient 3AC Coupling can improve system efficient 3--7% by 7% by
Use AC Coupling for Day time LoadUse AC Coupling for Day time Load
Use DC Coupling to Charge BatteryUse DC Coupling to Charge Battery
for Night time Load for Night time Load
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
Load Profile of haminadhoo
Night Day Pattern load Real load
0:00 160.14 160.14 160.14
1:00 159.36 159.36 159.36
2:00 159.19 159.19 159.19
3:00 157.34 157.34 157.34
4:00 163.41 163.41 163.41
5:00 172.91 172.91 172.91
6:00 159.77 159.77 159.77
7:00 134.07 134.07 134.07
8:00 136.86 136.86 136.86
9:00 130.50 130.50 130.50
10:00 131.74 131.74 131.74
11:00 122.52 122.52 122.52
12:00 113.62 113.62 113.62
13:00 109.95 109.95 109.95
14:00 124.35 124.35 124.35
15:00 133.20 133.20 133.20
16:00 147.33 147.33 147.33
17:00 162.66 162.66 162.66
18:00 222.78 222.78 222.78
19:00 247.30 247.30 247.30
20:00 222.51 222.51 222.51
21:00 210.96 210.96 210.96
22:00 194.16 194.16 194.16
23:00 182.50 182.50 182.50
kWh 2,709.06 1,150.07 3859.13 3859.2
Ratio 70.20% 29.80% Peak power 247.30
160.80 Cal Average 160.8
225.12 kWh per hours
Average Load/h
Add Increase factory 40%
Design DC Couple side by using nigh time energy consumption Design DC Couple side by using nigh time energy consumption
and AC Coupling side using day time energy consumptionand AC Coupling side using day time energy consumption
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
% pf PV % of Fuel Produce CO2
100.00% 0.00% - kg/day
Irradia tion 6.37 kWh/m2.day
Ambi ent Temp. 31.8oC
Peak Load 247.30 kW Aver. Load 160.80 kW/h Tota l Load 3859.20 kWh/Day
# of Inverter 250 kW
3 Uni ts
Units
300.00 1 units
Back Up DG Power ra ting 300.00 kW AC Coupling PV 700.00 kWp
Consume Dies el Fuel - Li ters /day Installation Area 5967.50 m2
Fuel Consumption rate 0.28 Liter/kWh
Battery 9000.00 Ah
8 480 Vdc
Units 240.00 Cel ls Annua l Load Energy cons umption 1,408,608 kWh
Annua l Energy generated form PV 1,901,181 kWh
Expect Batt Li fe 5.95 Years Annua l Dies el fuel cons umption - Li ters
Replace fuel @ Energy Price 0.347 IPP 0.340 USD/kWh
DC Coupling PV 500.00 kWp Annua l Dies el fuel reduction 0 Li ters
Installation Area 4262.50 m2
Annua l Dies el fuel amount s aving 0 USD
Total Investment 2,747,641 USD
Simpl e Pay back period 5.62 Years
Project Li fe 18 Year
Confidentia l information, this hybrid minigrid design is property of Leoni cs Co., Ltd., may not reproduce without prio noti ce to Leonics Co., Ltd.Project IRR reduce us e of fuel 10.19% IPP 9.69% %
Averag daily system operation condition and consumptions Site Name : TG. Labian
Project Owner : Site Location (Lat./Long.) : 5.18o N 119.24
o E
Des ign by :Wuthipong S. Version/Rev. : 1A Date :16-Sep-14 Alti tude : Meter (ASL)
Bidirectiona Inverter
MPPT charger
16
0.1
15
9.4
15
9.2
15
7.3
16
3.4
17
2.9
15
9.8
13
4.1
13
6.9
13
0.5
13
1.7
12
2.5
11
3.6
11
0.0
12
4.4
13
3.2
14
7.3
16
2.7 22
2.8
24
7.3
22
2.5
21
1.0
19
4.2
18
2.5
0.00
100.00
200.00
300.00
kW
Real load Profile
Grid Connected Inverter
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
PV-DG Main Power station t Banggi Island, Kudat, Sabah, Malaysia
COD on : 25 January 2014
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
BDI 3BDI 2
BDI 1
Charge ControllerGCI 3
GCI 2
GCI 1
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
ConclusionsConclusions-Both DC and AC coupling are good in different time
-DC coupling is better when using with high nigh time load
-AC coupling is better when using directly supply load at day time
-The best performance is using both DC and AC coupling together in
a PV system.
-Load profile is useful in determining portion of DC and AC coupling
to supply energy to PV system
-HOMER Pro simulation software has simulation result that Hybrid
DC and AC coupling has lower cost of energy than using DC coupling
or AC coupling alone.
-There are hybrid PV-DG power plants in operation using DC-AC
coupling design and have plant performance as design calculation.
2th Annual Solar Energy South East Asia Solar Energy South East Asia Nov 26, 2014 : Dr. Wuthipong Suponthana, PhD.
Thank you for bring us electricity
Children in Papua, Indonesia at the moment that they have electricity, Dec 2012
Thank you for bring us electricityThank you for bring us electricity
Children in Papua, Indonesia at the moment that they have electrChildren in Papua, Indonesia at the moment that they have electricity, Dec 2012icity, Dec 2012