steadycosFinds an equilibrium state of a general dynamical system described by a xcos diagramCalling Sequence[X,U,Y,XP]=steadycos(scs_m,X,U,Y,Indx,Indu,Indy [,Indxp [,param ] ])Module
xcos
Description
This function finds the steady state for a given system described by a xcos diagram or sub-diagram. The diagram should have inputs and outputs.The steady state concern only the continuous-time dynamics.
ExamplesArgumentsscs_m : a xcos 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
File content SCI/modules/scicos/macros/scicos_auto/steadycos.sciSee Also
lincos - Constructs by linearization a linear state-space model from a general dynamical system described by a xcos diagram (Scilab Function)
scicos_simulate - Function for running xcos simulation in batch mode (Scilab Function)
xcos - Block diagram editor and GUI for the hybrid simulator (Scilab Function)