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Overview of PID Control terms

S Bharadwaj Reddy
PID control can be a confusing concept to understand. Here, a brief summary of each term within PID (P. I, and D) is presented for your learning benefit. Proportional control...

Proportional-only Control Theory

S Bharadwaj Reddy
Imagine a liquid-level control system for a vessel, where the position of a level-sensing float directly sets the stem position of a control valve. As the liquid level rises, the...

How to Select the Right Type of Controller

S Bharadwaj Reddy
Distinguishing Characteristics  P-only Accelerates the response of controlled process Produces offset except for integrating (1/s) processes PI Eliminates offset Usually higher maximum deviations than P-only Sluggish, long oscillating responses Increased...

PID Controller Theory

S Bharadwaj Reddy
Anatomy of a Feedback Control System Here is the classic block diagram of a process under PID Control. PID Controller What’s going on this diagram? The Setpoint (SP) is the...

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