WOLFRAM SYSTEMMODELER

ChopperStepDown_RL

Step down chopper with R-L load

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.PowerConverters.Examples.DCDC.ChopperStepDown.ChopperStepDown_RL"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This example demonstrates the switching on of an R-L load operated by a step down chopper. DC output voltage is equal to dutyCycle times the input voltage. Plot current currentSensor.i, averaged current meanCurrent.y, total voltage voltageSensor.v and voltage meanVoltage.v. The waveform the average current is determined by the time constant L/R of the load.

Parameters (6)

f

Value: 1000

Type: Frequency (Hz)

Description: Switching frequency

Vsource

Value: 100

Type: Voltage (V)

Description: Source voltage

dutyCycle

Value: 0.25

Type: Real

Description: Duty cycle

V0

Value: Vsource * dutyCycle

Type: Voltage (V)

Description: No-load voltage

R

Value: 100

Type: Resistance (Ω)

Description: Resistance

L

Value: 1

Type: Inductance (H)

Description: Inductance

Components (10)

constantVoltage

Type: ConstantVoltage

chopperStepDown

Type: ChopperStepDown

currentSensor

Type: CurrentSensor

voltageSensor

Type: VoltageSensor

ground

Type: Ground

signalPWM

Type: SignalPWM

meanCurrent

Type: Mean

meanVoltage

Type: Mean

resistor

Type: Resistor

inductor

Type: Inductor