SuperCapDischargeChargeDischarge and charge idealized supercap |
This information is part of the Modelica Standard Library maintained by the Modelica Association.
A supercap with a capacitance of 500 F, starting initially at nominal voltage 48 V, is discharged with 5 current pulses of 240 A for 10 seconds, and breaks between the pulses of 10 seconds. Subsequently, the supercap is charged again with 5 current pulses of 240 A for 10 seconds, and breaks between the pulses of 10 seconds. In the end, the supercap is in no-load condition to reveal self-discharge effects.
Note that self-discharge is set to an unrealistic high value, to show self-discharge within a rather short time span.
The other parameters of the supercap is set to estimated but realistic values:
C = 500 F
Vnom = 48 V
Qnom = C*Vnom = 24,000 As
Ri = 2 mΩ
Simulate and plot terminal voltage supercap.v
.
Plotting energy.y
, it is remarkable that first energy is delivered by the supercap,
but then due to the losses more energy is consumed to recharge the supercap.
pulseSeries |
Type: PulseSeries |
|
---|---|---|
superCap |
Type: SuperCap |
|
ground |
Type: Ground |
|
signalCurrent |
Type: SignalCurrent |
|
powerSensor |
Type: PowerSensor |
|
energy |
Type: Integrator |
|
gain |
Type: Gain |