How to Design of Power Management of Hybrid Circuit(Battery and Capacitor) using LTspice Simple Model

1. 23APR2015
Bee Technologies
http://www.bee-tech.info/
How to Design of Power Management of
Hybrid Circuit(Battery and Capacitor)
using LTspice Simple Model
LTspice Version
1Copyright (C) Siam Bee Technologies 2015

2. 1.Circuit Method
2.Battery System only
3.Battery and Capacitor System
4.Conclusion
LTspice Version
SPICE Model using Simple Model by Bee Technologies
Lithium Ion Battery Model
http://www.bee-tech.info/simple-model-for-spice/lithium-ion-battery-model/
Lithium Ion Capacitor Model
http://www.bee-tech.info/simple-model-for-spice/lithium-ion-capacitor-model/
2Copyright (C) Siam Bee Technologies 2015

3. 1.Circuit Method
Battery System only Hybrid(Battery and Capacitor) System
Lithium
Ion
Battery
Current
Load
Lithium
Ion
Battery
Current
Load
Lithium
Ion
Capacitor
Control
Current Load Profile
Hybrid(Battery and Capacitor) System
If Current load >4[A], Lithium Ion Capacitor work
If Current load =<4[A], Lithium Ion Battery work
3Copyright (C) Siam Bee Technologies 2015

4. 1.Circuit Method
Current Load Profile
Hybrid(Battery and Capacitor) System
If Current load >4[A], Lithium Ion Capacitor work
If Current load =<4[A], Lithium Ion Battery work
Lithium Ion Capacitor work
Lithium Ion Battery work
4Copyright (C) Siam Bee Technologies 2015

5. 2.Battery System only
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6. 2.Battery System only
Current Load
Battery Voltage
Battery SOC(%): 100->83.472
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7. 3.Battery and Capacitor System
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8. Control
Battery Voltage
Battery SOC(%): 100->92.016
3.Battery and Capacitor System
Current Load
Capacitor Voltage
Capacitor SOC(%): 100->21.678
8Copyright (C) Siam Bee Technologies 2015

9. 4. Conclusion
Battery System only Hybrid(Battery and Capacitor) System
Lithium
Ion
Battery
Current
Load
Lithium
Ion
Battery
Current
Load
Lithium
Ion
Capacitor
Control
SOC[%]
Start Stop
Lithium Ion
Battery
100 83.472
SOC[%]
Start Stop
Lithium Ion Battery 100 92.016
Lithium Ion Capacitor 100 21.678
If high Current wave form quickly, Hybrid Circuit is better.
9Copyright (C) Siam Bee Technologies 2015