Trim Output Specification for Element of a Bus

Question

Arne 2015-2-20

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/179470-trim-output-specification-for-element-of-a-bus

回答： Arkadiy Turevskiy 2015-4-1

Hi!

I'M running Simulink on MATLAB 2014a and would like to find the trim point of a model that makes heavy use of busses. Most (if not all) output constraints apply to elements of busses that connect to the top-level output ports. However, when running

opspec = operspec('model')

I only see

Outputs: 
----------
(1.) model/state
   spec:  none
(2.) model/meas
   spec:  none
(3.) model/env
   spec:  none

which leaves me wondering how am I supposed to use addoutputspec() to constrain a certain named element of any of those busses. I really would like apply my constraints to the named bus elements since those can be considered stable, while the port numbers inside the model may change.

Many thanks!