WOLFRAM SYSTEMMODELER

Control

Control components for rectifiers

Package Contents

Signal2mPulse

Generic control of 2*m pulse rectifiers

VoltageBridge2Pulse

Control of 2 pulse bridge rectifier

VoltageBridge2mPulse

Control of 2*m pulse bridge rectifier

VoltageCenterTap2mPulse

Control of 2*m pulse center tap rectifier

Filter

PT1 + all-pass filter

Information

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

A generic controller with signal input and 2*m firing signals is provided in Signal2mPulse, where m is the arbitrary number of phases. Additional topology specific controllers with electrical connectors are also included.

Filters

Each controller is equipped with an optional filter to filter the input voltages. By default the filter is enabled.

Such filter is needed if the electrical grid includes a significant voltage drop across the grid impedance distorting the input voltage wave form of the rectifier. The filter included in the PowerConverters library is first order filter with additional compensation of the filter specific phase lag. However, it important to note that the transients of the filters may cause some initial effects which deteriorate after certain periods.

Enable

The topology specific controllers allow enabling and disabling of the firing signals. The internal enabling signal of the controllers is either derived from the parameter constantEnable, if useConstantEnable = true. For if useConstantEnable = false the internal enabling signal is taken from the optional signal input enable.

Wolfram Language

In[1]:=
SystemModel["Modelica.Electrical.PowerConverters.ACDC.Control"]
Out[1]:=