steadycos - Finds an equilibrium state of a general dynamical system described by a scicos diagram

Calling Sequence

[X,U,Y,XP]=steadycos(scs_m,X,U,Y,Indx,Indu,Indy [,Indxp [,param ] ])

Parameters

• scs_m : a Scicos data structure
• X : column vector. Continuous state. Can be set to [] if zero.
• U : column vector. Input. Can be set to [] if zero.
• Y : column vector. Output. Can be set to [] if zero.
• Indx : index of entries of X that are not fixed. If all can vary, set to 1:$
• Indu : index of entries of U that are not fixed. If all can vary, set to 1:$
• Indy : index of entries of Y that are not fixed. If all can vary, set to 1:$
• Indxp : index of entries of XP (derivative of x) that need not be zero. If all can vary, set to 1:$. Default [].
• param : list with two elements (default list(1.d-6,0)). param(1): scalar. Perturbation level for linearization; the following variation is used del([x;u])_i = param(1)+param(1)*1d-4*abs([x;u])_i. param(2): scalar. Time t.
• X : steady state X
• U : stationary input U
• Y : output corresponding to steady state found
• XP : derivative of the state corresponding to steady state found

Description

This function finds the steady state for a given system described by a Scicos diagram. The diagram consists in general of a Super block with input and output port blocks. The steady states concerns only the continuous-time dynamics.

See Also

lincos ,   scicos_simulate ,   scicos ,  

Authors

Ramine Nikoukhah

Used Function