getLoopTransfer
Open-loop transfer function at specified point using slLinearizer or slTuner interface
Syntax
linsys = getLoopTransfer(s,pt)
linsys = getLoopTransfer(s,pt,sign)
linsys = getLoopTransfer(s,pt,temp_opening)
linsys = getLoopTransfer(s,pt,temp_opening,sign)
linsys = getLoopTransfer( ___ ,mdl_index)
[linsys,info] = getLoopTransfer( ___ )
Description
linsys = getLoopTransfer(s,pt) returns the point-to-point open-loop transfer
function on page 15-341 at the specified analysis point for the model associated with the
slLinearizer or slTuner interface, s.
The software enforces all the permanent loop openings on page 15-343 specified for s
when it calculates linsys. If you configured either s.Parameters, or
s.OperatingPoints, or both, getLoopTransfer performs multiple linearizations and
returns an array of loop transfer functions.
linsys = getLoopTransfer(s,pt,sign) specifies the feedback sign for computing
the open-loop response. By default, linsys is the positive-feedback open-loop transfer
function.
Set sign to -1 to compute the negative-feedback open-loop transfer function for
applications that assume the negative-feedback definition of linsys. Many classical
design and analysis techniques, such as the Nyquist or root locus design techniques, use
the negative-feedback convention.
The closed-loop sensitivity at pt is equal to feedback(1,linsys,sign).
getLoopTransfer