What do P, I, and D in a PID in a DCS represent?
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What do P, I, and D in a PID in a DCS represent? Explain it in simple terms.
P: process; I: instrument; D: Diagram
Proportional-integral-derivative controller. By constructing a mathematical model, stable regulation control of the parameters is achieved. That’s roughly what it means; you can refer to knowledge on instrument automation.
The explanation on the 2nd floor is correct; a simple explanation of PID is: a process flow diagram with control points using instruments.
Proportion: Ratio. Integration: Accumulation. Differentiation: Derivation
1) PID (proportional integral derivative) control: proportional-integral-derivative control. 2) P&ID (Piping and Instrumentation Diagram): a diagram of pipelines and instruments, also known as a process flow diagram with control points
In PID control, the proportional action operates based on the magnitude of the error, and it serves to stabilize the parameter being controlled in the system； The integral action operates based on whether a deviation exists, and it serves to eliminate residual errors in the system ； The differential action operates based on the (rate of change of deviation), serving a role of (proactive regulation) within the system.
PID stands for: P-proportional control, I-integral control, D-differential control; PID is proportional, integral, and differential control combined.
What LZ is asking about in DCS regarding PID definitely refers to proportional, integral, and derivative control – it has nothing to do with process instrument flow diagrams at all!
What do P, I, and D in a PID in a DCS represent? Explain it in simple terms. Process instrument diagram – Agree with the person above! Piping and instrumentation diagram, also known as a process flow diagram with control points
Proportion: Ratio. Integration: Accumulation. Differentiation: Derivation