5. This year our team will create a power storage device that will
effectively transfer power to the bogie.
researchgate.net/figure/Solar-generation-data-red-line-cloudy
-blue-line-sunny_fig2_324585472
Joe Lau
6. Unlike conventional trains, the length of the conductor rail will
be minimized to reduce cost of construction
Joe Lau
7. Supercapacitors will provide power for acceleration, while Lithium-
ion batteries will help maintain the cruising speed
Joe Lau
8. Design Goals
Description Quantity
Mass of the system < 100 kg
Maximum Velocity of Bogie 1 m/s
Desired Acceleration 2.45 m/s2
Total Track Length 10 m
Factor of Safety > 10
Power Module Dimensions 47 cm x 35 cm x 25 cm
Supercapacitor Charging time < 120 seconds
Joe Lau
9. The power calculation account for real-world conditions such as
wind effect, rolling resistance, and friction forces
Newton 2nd Law Effect of
Acceleration
Effect of
Windspeed
Rolling
Resistance
Steven Goh
10. The power needed to move the system is estimated to be
around 110 W
0
0.02
0.04
0.06
0.08
0.1
0.12
0 2 4 6 8 10
Power(kW)
Time [s]
Power Curve
Steven Goh
11. The supercapacitor bank can store up to 11 kJ of energy, it will
power the bogie during acceleration
𝐸 =
1
2
𝐶𝑉2350
Farads
17.5Farads 36V
Cell Rated
Capacitance
16 Series Cell
Capacitance
Supply
Voltage
Steven Goh
12. Using the charger we have; we are confident that the supercapacitors will be
fully charged in less than 2 minutes
35.95531014
0
5
10
15
20
25
30
35
40
0 20 40 60 80 100 120 140
Voltage[V],Current[A]
Time [s]
Supercapacitor Charging Profile
Voltage Current Series3
𝐼 =
𝑉0
𝑅𝑡𝑜𝑡𝑎𝑙
𝑒−
𝑡
𝑅𝐶
𝑉 = 𝑉0(1 − 𝑒−
𝑡
𝑅𝐶)
Steven Goh
13. A battery management System (BMS) will be used to monitor the state
of charge and balance charging rate between each cell
Eric Near
15. Printed Circuit Board (PCB) will be used to reduce the overall wiring of
the system
Eric Near
16. Lithium-Ion Battery pack will be created to maintain cruising
speed
10
meter
3000
Watt
7.99Wh
Demo Track
Length
Demo Motor Battery Capacity
Needed
Joe Lau
17. We will create a 3s-2p battery pack that have a capacity
of 55 Wh
3.7
Volts
11.1
Volts
2500mAh
Individual
Output Voltage
3 Series
Output Voltage
Individual Battery
Capacity
Joe Lau
18. SPDT (Single Pull Double Throw) relay will be used to switch
between each system
Steven Goh
24. Gantt Chart
Sept October
Tasks 25 2 9 16 23 30
Research on Discharge of
Supercaps
Design of housing for components
FEA Analysis
PCB Design
Alternate Capacitor Charging
Thermal Analysis/Cooling System
Prototyping
Final Presentation/Report
Ordering Parts
Steven Goh
Eric Near
Joe Lau
All
Eric Near
25. November
Tasks 6 13 20 27
Research on Discharge of Supercapacitors
Design of housing for components
FEA Analysis
PCB Design
Alternate Capacitor Charging
Thermal Analysis/Cooling System
Prototyping
Final Presentation/Report
Ordering Parts
Steven Goh
Eric Near
Joe Lau
All
Eric Near
26. December
Tasks 4 11 18
Research on Discharge of Supercaps
Design of housing for components
FEA Analysis
PCB Design
Alternate Capacitor Charging
Thermal Analysis/Cooling System
Prototyping
Final Presentation/Report
Ordering Parts
Steven Goh
Eric Near
Joe Lau
All
Eric Near
30. Demonstrate power output to stationary load
Joe Lauhttps://gameroomsolutions.com/shop/chrome-illuminated-led-arcade-push-button/
https://www.alibaba.com/product-detail/2-Phase-42-linear-Stepper-motor_60403024357.html
