WOLFRAM SYSTEMMODELER

HBridge_DC_Drive

H bridge DC/DC converter with DC drive

Diagram

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.PowerConverters.Examples.DCDC.HBridge.HBridge_DC_Drive"]
Out[1]:=

Information

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

This example of an H bridge with DC drive demonstrates the operation of the DC machine in four quadrants. The DC output voltage is equal to 2 * (dutyCycle - 0.5) times the input voltage.

start time (s) machine speed machine torque mode
0 zero zero
3 positive zero
6 positive positive motor
9.5 positive negative generator
12.5 negative negative motor
15.5 negative positive generator
19 negative zero
22 zero zero

Plot machine current dcpm.ia, averaged current meanCurrent.y, machine speed dcpm.wMechanical, averaged machine speed dcpm.va and torque dcpm.tauElectrical.

Parameters (6)

f

Value: 1000

Type: Frequency (Hz)

Description: Switching frequency

Ld

Value: 3 * dcpmData.La

Type: Inductance (H)

Description: Smoothing inductance

tauNominal

Value: dcpmData.ViNominal * dcpmData.IaNominal / dcpmData.wNominal

Type: Torque (N·m)

Description: Nominal torque

dMin

Value: 0.2

Type: Real

Description: Minimum duty cycle

dMax

Value: 1 - dMin

Type: Real

Description: Maximum duty cycle

dcpmData

Value:

Type: DcPermanentMagnetData

Description: Data record of PM excited DC machine

Components (14)

hbridge

Type: HBridge

constantVoltage

Type: ConstantVoltage

signalPWM

Type: SignalPWM

ground

Type: Ground

currentSensor

Type: CurrentSensor

voltageSensor

Type: VoltageSensor

meanCurrent

Type: Mean

meanVoltage

Type: Mean

dcpm

Type: DC_PermanentMagnet

dcpmData

Type: DcPermanentMagnetData

Description: Data record of PM excited DC machine

torque

Type: Torque

torqueTable

Type: TimeTable

dutyCycleTable

Type: TimeTable

inductor

Type: Inductor