control.parallel¶
- control.parallel(sys1, sys2)¶
Return the parallel connection sys1 + sys2.
Parameters: sys1: scalar, StateSpace, TransferFunction, or FRD
sys2: scalar, StateSpace, TransferFunction, or FRD
Returns: out: scalar, StateSpace, or TransferFunction
Raises: ValueError
if sys1 and sys2 do not have the same numbers of inputs and outputs
Notes
This function is a wrapper for the __add__ function in the StateSpace and TransferFunction classes. The output type is usually the type of sys1. If sys1 is a scalar, then the output type is the type of sys2.
If both systems have a defined timebase (dt = 0 for continuous time, dt > 0 for discrete time), then the timebase for both systems must match. If only one of the system has a timebase, the return timebase will be set to match it.
Examples
>>> sys3 = parallel(sys1, sys2) # Same as sys3 = sys1 + sys2.