Numeric linear-time-invariant (LTI) models are the basic building
blocks that you use to represent linear systems. Numeric LTI model
objects let you store dynamic systems in commonly-used representations.
tf models represent transfer functions
in terms of the coefficients of their numerator and denominator polynomials,
ss models represent LTI systems in terms
of their state-space matrices. There are also LTI model types specialized
for representing PID controllers in terms of their proportional, integral,
and derivative coefficients.
Build up a more complex model of a control system by representing individual components as LTI models and connecting the components to model your control architecture. For an example, see Control System Modeling with Model Objects.
|pid||Create PID controller in parallel form, convert to parallel-form PID controller|
|pidstd||Create a PID controller in standard form, convert to standard-form PID controller|
|pid2||Create 2-DOF PID controller in parallel form, convert to parallel-form 2-DOF PID controller|
|pidstd2||Create 2-DOF PID controller in standard form, convert to standard-form 2-DOF PID controller|