linerization fails in presence of relay block
3 views (last 30 days)
Show older comments
I am using a simulink model and has PMSM motor.model has speed and current control loop in model in order to give PWM signal i am using relay blok.for tuning the model i am using PID block for speed and current ,when ever i tune the block linerization is getting fail because of relay block .how can i tune moodel in presence of relay block
0 Comments
Answers (1)
Arkadiy Turevskiy
on 30 Sep 2013
When you launch PID Tuner, it tries to linearize your Simulink model. If you have strong discontinuities like relay exact linerization won't work.
In the case of relay, the best thing to do is probably tune the system without the relay, as in the continuous region relay is basically a gain of one. A quick thing to try is to comment through the relay block. Alternatively, you can specify a custom linearization behavior for the relay bloc, setting linearization to a gain of 1.
0 Comments
See Also
Categories
Find more on Discontinuities in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!