10 tips for tuning of pid loops
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8/17/2019 10 Tips for Tuning of PID Loops
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10 Tips for Tuningof PID Loops
By
Steve Mackay
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Objectives of Tuning (1)
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Objectives of Tuning (2)
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Other Aspects of Tuning (3,4,5)
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Steps of Open Loop Tuning
(Reaction Curve)
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Open Loop Tuning Method (2)
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Reaction Curve Calculations
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Continuous Cycling - Ziegler & Nichols
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P-only for Continuous Cycling
Method
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Reaction Curve Method (Ziegler & Nichols)
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Continuous Cycling Method
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First Order Lag
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First Order Lag Response Curve
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Damped Cycling Method
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Damped Oscillation DecayRatio
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Steps of Damped Cycling Method
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Calculate Tuning Constants
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Tuning for NO Overshoot on Start-up
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Formula for NO Overshoot on Start-up
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Tuning for SOME Overshoot on Start-up
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Formula for Some Overshoot on Start-up
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Long ProcessLong Process DeadtimeDeadtimein Closed Loop Control &in Closed Loop Control &
The Smith PredictorThe Smith Predictor
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Illustration of a long conveyor system giving anexcessive deadtime to the control loop
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Choice of Tuning Constant (1)
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Choice of Tuning Constants (2)
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Choice of Tuning Constants (3)
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