Brian Jonathan - FYP Demonstration
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Transcript of Brian Jonathan - FYP Demonstration
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Power Grid Based Energy Storage System
Brian Jonathan
Supervisor: Moncef Tayahi
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EEE311 Final Year Project
Introduction
• Why I chose this topic? • Why energy is important? • Fossil fuel • Clean energy advantages: no pollutant • Clean energy disadvantage: environment
dependence • Solution
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EEE311 Final Year Project
Overall System
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EEE311 Final Year Project
AC-DC Rectifier (1)
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EEE311 Final Year Project
AC-DC Rectifier (2)
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EEE311 Final Year Project
AC-DC Rectifier Test (1)
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EEE311 Final Year Project
AC-DC Rectifier Test (2)
• Lowest voltage: 1.088V • Highest voltage: 25.57V • Theoretically 1.2V to 29.65 V
• Optimum charge current: 1.92 A • Optimum charge voltage: 13.5V • 6 hours charging time • The battery can be charged from 11V to 14.5V, with current less
than 3A
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EEE311 Final Year Project
Controller charger
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EEE311 Final Year Project
Controller charger (2)
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EEE311 Final Year Project
Controller charger (3)
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EEE311 Final Year Project
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EEE311 Final Year Project
Charge and Dump State
Charge state: (TP1 = 1.66V) The controller will charge the battery when the input voltage is between 11.9V and 14.5 V, the green LED will turn on Dump state: (TP2 = 3.32V) The controller will switch to dummy load when the input voltage is more than 14.5 V, the yellow LED will turn on
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EEE311 Final Year Project
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EEE311 Final Year Project
Setting TP1 and TP2
DCPOWERSUPPLY
+
-
DU
MM
Y LO
AD (+
)
WIN
D T
UR
BIN
E (+
)
BA
TTER
Y (+
)
FRONT FACE OF CONTROLLER
220VAC5 4 3 2 1
11,9 V for Tp-1 set14,5 V for Tp-2 set
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EEE311 Final Year Project
POWER SUPPLY AS
WIND TURBINE REPLACEMENT
+
-
+-
LEAD ACID12V 12AHBATTERY
12VDC (IN) INVERTER 150W 220VAC (OUT)
+
-
GR
OU
ND
ING
GR
OU
ND
ING
DU
MM
Y L
OA
D +
(LAM
P)
DC
PO
WE
R S
UP
PLY
+ O
R W
IND
TU
RB
INE
BA
TTE
RY
220VACTO LOAD (LAMP CIRCUIT)
FRONT FACE OF CHARGER CONTROLLER
VDC OUT
DUMMY LOAD
(LAMP)
5 4 3 2 1
220VAC
Connection Diagram
POWER SUPPLY AS
WIND TURBINE REPLACEMENT
+
-
+-
LEAD ACID12V 12AHBATTERY
12VDC (IN) INVERTER 150W 220VAC (OUT)
+
-
GR
OU
ND
ING
GR
OU
ND
ING
DU
MM
Y L
OA
D +
(LAM
P)
DC
PO
WE
R S
UP
PLY
+ O
R W
IND
TU
RB
INE
BA
TTE
RY
220VACTO LOAD (LAMP CIRCUIT)
FRONT FACE OF CHARGER CONTROLLER
VDC OUT
DUMMY LOAD
(LAMP)
5 4 3 2 1
220VAC
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EEE311 Final Year Project
Battery (Genesis NP12-12T)
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EEE311 Final Year Project
Battery Specification (1)
• Volts : 12V • Nominal capacity (20 hour rate) : 12 Ah • Length : 151 mm (5.94 inches) • Width : 98 mm (3.86 inches ) • Overall height (including terminals) : 97.5 mm (3.84 inches) • Weight : 4 kg (8.82 lbs) • Float charge voltage : 13.5 – 13.8 V @ 25°C • Cyclic charge voltage : 14.4 – 15V @ 25°C • Stand-by use : constant voltage charging 2.25-2.3 Volt per cell
(VPC) • Cyclic use : 2.4-2.5 Volt per cell (VPC) with initial charging
current should be less than 0.25 CA
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EEE311 Final Year Project
Battery Specification (2)
• Top charge : 2.4 Volt per cell (VPC) with initial charging current should be less than 0.1 CA for 15-20 hours
• Temperature range : charging and discharging from-15 to 50°C (normally 25°C)
• Self discharge : 3% of rated capacity per month in room temperature
• Cyclic service life : 1000 cycles, depends on the average depth of discharge
• Float service life : 3-5 years
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EEE311 Final Year Project
Discharge Characteristic
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EEE311 Final Year Project
Cyclic Life
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EEE311 Final Year Project
DC-AC Inverter
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EEE311 Final Year Project
Inverter Specification
• Input voltage range : DC 10-15V • Full power input current : 15A • Stand-by input current : < 0.4A • Output voltage (AC) : 220-240V • Output wave : Modified sinewave • Output frequency : 50Hz • Continuous output power : 150W • Starting power : 450W • Efficiency : 90% • Thermal protection : 60 ± 0.5 °C (Microcontroller) • Size (length, wide, height) : 120 x 73 x 73 mm • Weight : 560g
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EEE311 Final Year Project
Energy-meter
• The first row displays voltage, current, and wattage • The second row displays the used energy (kWh), tariff (cost/kWh),
and total cost (cost). • The third row displays time
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EEE311 Final Year Project
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EEE311 Final Year Project
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EEE311 Final Year Project
Final Output Result
• Efficiency : 89.33% (with 0.67% difference from theory) • Voltage: 221VAC • Load current: 0.605 A (with 0.17% difference from theory) • Battery usage time: Battery rating/Inverter rating = 56.7
minutes
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EEE311 Final Year Project
Off-grid vs. Grid-tie Inverter
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EEE311 Final Year Project
Why using an off-grid inverter?
• Much cheaper • Can be used during blackout • Most of grid-tie inverter is an AC-AC inverter • Most of grid-tie inverter has battery storage • Suitable for this project
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EEE311 Final Year Project
Project Budget
The total cost spent:
• 1.2 million IDR = 651.34 RMB (without the multimeter and the energy-meter)
• 3.1 million IDR = 1730.6 RMB (with multimeter and energy-meter)
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EEE311 Final Year Project
Limitations and Future Works
• Did not use a real wind turbine • The circuit is not programmable • Hybrid System
Conclusion • Real application • Future wish
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Thank You Question?