Cascade control
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Is there any expert who can use simple and easy-to-understand language to help us understand what cascade control is, why it is used, and what the advantages of using it are? Thank you!
I suggest you read some books on automatic control; control theory is the foundation of automatic control, and it’s impossible to explain it in just a few words. There are also many tutorials on the forum; just do a search and you’ll find plenty of them.
The set value for parameter two is obtained by dividing the measured value of parameter one by its range, multiplying that result by the range of the other controlled parameter, two, and then multiplying by a coefficient.
Find some basic course materials to take a look at~~~ The ones that come with pictures are more professional~~~
A cascade control system has two closed loops in its structure; one closed loop is inside the other, and it is referred to as the inner loop or secondary loop； The other closed loop is external, and is called the outer loop or main loop. The secondary loop is responsible for coarse adjustment during the control process, while the primary loop handles fine adjustment. Cascade control achieves control effects that are difficult to attain with a conventional single-loop control system by leveraging the cooperation of these two loops.
http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=719476 :) Go take a look at this
Two single-loop combinations, where the output of one loop serves as the input (setpoint) for the other loop
It consists of two measurement variables + two regulators in series + one control valve. The output of regulator 1 serves as the setpoint for regulator 2, while the output of regulator 2 acts as the control signal for the control valve.