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Control Systems

Learning objectives. To understand different control strategies/configurations To design controllers using root locus technique To state the properties and structure of lead compensator To state the properties and structure of lag compensator To design controllers using frequency response tech

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Control Systems

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    1. Control Systems Part 8: Control System Design Techniques

    2. Learning objectives To understand different control strategies/configurations To design controllers using root locus technique To state the properties and structure of lead compensator To state the properties and structure of lag compensator To design controllers using frequency response techniques

    3. Different control system configurations

    4. Different control system configurations

    5. Different control system configurations

    6. Different control system configurations <<<6.2>>><<<6.2>>>

    7. Different control system configurations

    8. Cascade controller design with root locus method

    9. Cascade controller design with root locus method (Cont.)

    10. Cascade controller design with root locus method (Cont.) <<<6.3>>> ###PID Tuning###<<<6.3>>> ###PID Tuning###

    11. Cascade controller design with root locus method (Cont.) <<<6.4>>> ###Ziegler-Nichols Oscillation Method### {{{Ziegler-Nichols}}}<<<6.4>>> ###Ziegler-Nichols Oscillation Method### {{{Ziegler-Nichols}}}

    13. Cascade controller design with root locus method

    14. Cascade controller design with root locus method

    15. Cascade controller design with root locus method (Cont.)

    16. Cascade controller design with root locus method (Cont.)

    17. Cascade controller design with root locus method (Cont.) <<<6.5>>> ###Reaction Curve Methods### {{{Reaction Curve}}}<<<6.5>>> ###Reaction Curve Methods### {{{Reaction Curve}}}

    18. Lead and lag compensators

    19. Frequency response of a lead compensator

    20. Frequency response of a lag compensator

    21. Design example with a lead compensator

    22. Design example with a lead compensator (Cont.)

    23. Design example with a lead compensator (Cont) <<<6.6>>> ###Lead-Lag### {{{Lead, Lag}}}<<<6.6>>> ###Lead-Lag### {{{Lead, Lag}}}

    24. Design example with a lead compensator (Cont)

    25. Design example with a lead compensator (Cont)

    26. Design example with a lag compensator

    27. Design example with a lag compensator (Cont) <<<6.8>>><<<6.8>>>

    28. Design example with a lag compensator (Cont)

    29. Design example with a lag compensator (Cont)

    30. Summary Controller can interact with the system in several different ways: cascade, feedback, and feedforward. The essence of the controller design is to change the dynamic characteristics of the system through the introduction of dynamic compensator. The compensated system should satisfy certain criteria in s-domain (Root Locus method) or in frequency domain (Frequency Response method). There are two commonly used controller structures, lead compensator, and lag compensator.

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