RampedRheostat

Rheostat with linearly decreasing resistance

    RampedRheostat

Library

Modelica/Electrical/Machines/Utilities

Description

Ramped rheostat, used for starting asynchronous induction motors with slipring rotor:

The external rotor resistance RStart is reduced to zero, starting at time tStart with a linear ramp tRamp.

Parameters

RampedRheostat_0

NameLabelDescriptionData TypeValid Values

mo_m

m

Number of phases

Scalar

mo_RStart

RStart

Starting resistance

Scalar

mo_tStart

tStart

Time instance of reducing the rheostat

Scalar

mo_tRamp

tRamp

Duration of ramp

Scalar

Ports

NameTypeDescriptionIO TypeNumber

plug_p

implicit

To positive rotor plug

input

1

plug_n

implicit

To negative rotor plug

output

1