control.matlab.modred¶
- control.matlab.modred(sys, ELIM, method='matchdc')[source]¶
Model reduction of sys by eliminating the states in ELIM using a given method.
- Parameters
sys (StateSpace) – Original system to reduce
ELIM (array) – Vector of states to eliminate
method (string) – Method of removing states in ELIM: either
'truncate'
or'matchdc'
.
- Returns
rsys – A reduced order model
- Return type
- Raises
ValueError –
Raised under the following conditions:
if method is not either
'matchdc'
or'truncate'
if eigenvalues of sys.A are not all in left half plane (sys must be stable)
Examples
>>> rsys = modred(sys, ELIM, method='truncate')