master:clarke parametersPSCAD Clarke Transformation

Every parameter of the PSCAD Clarke Transformation (master:clarke): 3 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().

What master:clarke is

Clarke Transformation (Clarke transformation), a component of PSCAD's Master Library, filed under control blocks.

Definition
master:clarke
PSCAD name
Clarke Transformation
Category
Control blocks
Parameters
3, in 1 group
Read from
PSCAD 5.0.0, 2026-11-07

Read and write master:clarke in Python

import mhi.pscad

pscad = mhi.pscad.connect()              # the PSCAD that is open; launch() starts one
project = pscad.project("my_case")       # a case loaded in the workspace

for comp in project.find_all("master:clarke"):   # the exact definition, namespace first
    params = comp.parameters()           # every parameter, as PSCAD holds it
    print(str(params["IDir"]))           # Direction of Transformation

comp = project.find_all("master:clarke")[0]
comp.parameters(IDir="ALPHABETA_TO_ABC") # a Choice is written as its symbol
  • A parameter is named exactly as in the table, letter case included: parameters() gives every one of them in a dictionary, and a name the component does not have is refused.
  • A value that carries a unit comes back as a number whose unit is only in its text, so read it as text first (str(...)) or the unit is lost. PSCAD keeps a written unit as it is given: "2500 [mohm]" stays in mohm.
  • A Choice is read and written as its symbol (the capitals in "Written as"), not as the words PSCAD shows in the dialog.
  • find_all() takes the exact definition only. A wildcard or a bare name without master: comes back empty; the Builder's px_find walks the pages for those.

The Builder's runtime does the same with the unit handled for you: px_get(comp, "IDir") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.

Configuration

ParameterUnitDefaultDescription
IDirChoice·ABC_TO_ALPHABETADirection of TransformationThis component can transform values in either direction. Select which direction you would like to use.Written as ALPHABETA_TO_ABC (alpha-beta to ABC), ABC_TO_ALPHABETA (ABC to alpha-beta)
NameText··NameOptional name for easy identificationRange 0 to 0
cqChoice·STANDARDClarke QuantitiesSelect Standard or Power InvariantWritten as STANDARD (Standard), POWER_INVARIANT (Power Invariant)

Related

← master:detect_change Change Detector · master:Cosimulation Co-Simulation →