what is cascade loop and how it work and why it used instead
of PID single loop?
In cascade, Which loop is faster and slower?
Please explain with loop drawing and example...
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Answer Posted / mithilesh kumar
cascade loop is the combination of two pid control.
where 1st controller output ie mv is the input of 2nd
controller.
1st contrroler more fater than second controoler.
it's used in boiler three element.
it's control feed water flow,drum level and steam flow.
drawing is not possible here.
but i am trying.
controller checked steam flow as well as drum level then it
gived command to control valve as per requirement.
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where cascade loop use ?
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