open_system('scdairframectrl/q Control')
- scdairframectrl/az Control - A discrete-time integrator, a discrete transfer
function, and a gain block stabilize the outer loop.
open_system('scdairframectrl/az Control')
Decoupling Loops in Multiloop Systems
The typical design procedure for cascaded feedback systems is to first design the inner
loop and then the outer loop. In Control System Designer, it is possible to design both
loops simultaneously; by default, when designing a multi-loop feedback system the
coupling effects between loops are taken into account. However, when designing two
feedback loops simultaneously, it can be necessary decouple the feedback loops; that is,
remove the effect of the outer loop when tuning the inner loop. In this example, you
design the inner feedback loop (q) with the effect of the outer loop (az) removed.
Configure Control System Designer
To design a controller using Control System Designer, you must:
- Select the controller blocks that you want to tune.
- Create the open-loop and closed-loop responses that you want to view.
For this example, you can:
- Launch a preconfigured Control System Designer session by double-clicking the
subsystem in the lower left corner of the model. - Configure the Control System Designer using the following procedure.
Cascaded Multiloop Feedback Design