NPTEL  Mechanical Engineering  Modeling and Control of Dynamic electroMechanical System Module  Lecture  LeadLag Compensator and Notch Filter Bi h kh Bh tt h r
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NPTEL Mechanical Engineering Modeling and Control of Dynamic electroMechanical System Module Lecture LeadLag Compensator and Notch Filter Bi h kh Bh tt h r

Bi kh Bh tt ac arya Professor Department of Mechanical Engineering IIT Kanpur Joint Initiative of IITs and IISc Funded by MHRD brPage 2br NPTEL Mechanical Engineering Modeling and Control of Dynamic electroMechanical System Module 3 Lecture 21 Jo

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NPTEL Mechanical Engineering Modeling and Control of Dynamic electroMechanical System Module Lecture LeadLag Compensator and Notch Filter Bi h kh Bh tt h r




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Presentation on theme: "NPTEL Mechanical Engineering Modeling and Control of Dynamic electroMechanical System Module Lecture LeadLag Compensator and Notch Filter Bi h kh Bh tt h r"— Presentation transcript:


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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 Lead-Lag Compensator and Notch Filter Bi h kh Bh tt h r. Bi kh Bh tt ac arya Professor, Department of Mechanical Engineering IIT Kanpur Joint Initiative of IITs and IISc - Funded by MHRD
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 Joint Initiative of IITs and IISc - Funded by MHRD
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic

electro-Mechanical System Module 3- Lecture 21 Design of a Lead Lag filter Design of Lead Lag filter Evaluate the performance of uncompensated system and get the desired pole location system and get the desired pole location Design the Lead Compensator to meet the transient response transient response Simulate and Redesign to meet the performance Evaluate steady state performance and obtain the lag compensator Si l t d It t t h k ll th Si mu e an It era e o c ec a ll th e performances
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System

Module 3- Lecture 21
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 Notch compensation Notch compensation Example system: (1/s(s+1)) Consider a system with a lead-lag controller 01 03 20 127 Now, suppose the real system has a rather un-damped oscillation about 50 rad/sec. So, we include this oscillation in the model 2500 Can we use the original controller ? 2500 2500
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 Notch compensation Aim: Remove or dampen the oscillations Possibilities Gain stabilization Gain stabilization Reduce the gain at high frequencies Thus, insert poles above the bandwidth but be low the oscillation frequency might not be feasible Phase stabilization (notch compensation) Phase stabilization (notch compensation) A zero near the oscillation frequency A zero increases the phase Possible transfer function ]Z
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NPTEL >> Mechanical Engineering >>

Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 Design of a notch filter Design of notch filter
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 .. ..
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NPTEL >> Mechanical Engineering >> Modeling and Control of Dynamic electro-Mechanical System Module 3- Lecture 21 Special References for this lecture Special References for this lecture

Feedback Control of Dynamic Systems, Frankline, Powell and Emami , Pearson Control Systems Engineering Norman S Nise , John Wiley & Sons Design of Feedback Control Systems Stefani Shahian Savant Hostetter Design of Feedback Control Systems Stefani , Shahian , Savant , Hostetter Oxford