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Intersective PWM

Intersective PWM

 

Description

Connections

Parameters

Modelica Standard Library

Description

The Intersective PWM component transforms the input space phasor u to three phase voltages, and compares them with the reference signals. As long as the phase voltage is greater than the corresponding reference signal, the corresponding fire signal is true. The switching pattern of the negative fire signal is the inverse of the positive fire signal. The user can choose from four different reference signals:

• 

Sawtooth1: sawtooth signal, same phase in all 3 phases

• 

Sawtooth3: sawtooth signal, phase shift between the 3 phases = period/3

• 

Triangle1: triangle signal, same phase in all 3 phases

• 

Triangle3: triangle signal, phase shift between the 3 phases = period/3

Connections

Name

Description

Modelica ID

u

Reference space phasor

u

firep

positive fire signal

fire_p

firen

negative fire signal

fire_n

Parameters

Name

Default

Units

Description

Modelica ID

f

 

Hz

Switching frequency

f

T0

0

s

Start time of PWM

startTime

umax

 

 

Maximum amplitude of signal

uMax

ref type

[1]

 

Type of reference signal

refType

[1] ModelicaElectricalPowerConvertersTypesReferenceTypeTriangle3

Modelica Standard Library

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.

See Also

DC AC

DC AC Control

Electrical Library

Power Converters