How to adjust the PID parameters of the refinery instrument DCS?
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Our company currently has over a dozen sets of equipment, with DCS systems from Zhejiang University Control Systems and HaliTech. How should the PID parameters be adjusted when setting the instruments to automatic mode in order to enable automatic operation of these instruments? The self-control rate has always been low.
The adjustment of PID parameters should be done gradually based on the actual conditions on site; experience plays a key role in this process...
Generally, a parameter is first set based on experience, and then adjusted according to the transition process.
For some control valves, it doesn’t matter if you make adjustments, but for certain ones, you need to spend at least half a day observing the results after making adjustments – it’s quite demanding.
It also depends on whether the accompanying sensing elements and actuators are reliable. The wrong selection has an impact on design issues; I’ve been working on this lately as well. Take your time – adjusting the PID parameters is quite interesting