WOLFRAM SYSTEM MODELER

ChopperStepUp_R

Step up chopper with resistive load

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.PowerConverters.Examples.DCDC.ChopperStepUp.ChopperStepUp_R"]
Out[1]:=

Information

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

This example demonstrates the switching on of a resistive load operated by a step up chopper. DC output voltage is equal to 1/(1 - dutyCycle) times the input voltage. Plot current currentSensor.i, averaged current meanCurrent.y, total voltage voltageSensor.v and voltage meanVoltage.v.

Parameters (8)

f

Value: 1000

Type: Frequency (Hz)

Description: Switching frequency

Vsource

Value: 60

Type: Voltage (V)

Description: Source voltage

L

Value: 25e-3

Type: Inductance (H)

Description: Source inductance

C

Value: 20e-6

Type: Capacitance (F)

Description: Smoothing capacitance

dutyCycle

Value: 0.20

Type: Real

Description: Duty cycle

ILoad

Value: 1.2

Type: Current (A)

Description: Load current

RLoad

Value: V0 / ILoad

Type: Resistance (Ω)

Description: Load resistance

V0

Value: Vsource / (1 - dutyCycle)

Type: Voltage (V)

Description: No-load output voltage

Components (13)

constantVoltage

Type: ConstantVoltage

Description: Source for constant voltage

chopperStepUp

Type: ChopperStepUp

Description: Step up chopper

currentSensor

Type: CurrentSensor

Description: Sensor to measure the current in a branch

voltageSensor

Type: VoltageSensor

Description: Sensor to measure the voltage between two pins

ground

Type: Ground

Description: Ground node

signalPWM

Type: SignalPWM

Description: Generates a pulse width modulated (PWM) boolean fire signal

meanCurrent

Type: Mean

Description: Calculate mean over period 1/f

meanVoltage

Type: Mean

Description: Calculate mean over period 1/f

inductor

Type: Inductor

Description: Ideal linear electrical inductor

capacitor

Type: Capacitor

Description: Ideal linear electrical capacitor

loadResistor

Type: Resistor

Description: Ideal linear electrical resistor

adaptor

Type: Voltage2DutyCycle

Description: Linearly transforms voltage to duty cycle

vRef

Type: Ramp

Description: Generate ramp signal