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CA504 Digital Control Systems
Dr. Vali Uddin
PNEC-NUST
Lecture 1
Lecture 1 - Digital Control System (Fall 2010)
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Course Brief Text Book
◦ Digital Control Engineering by M. Sami Fadali & Antonio Visioli
Quizzes, Midterm and Final◦ Open Book – Open Notes
Assignment◦ 7 – 8 during Semester
Lecture 1 - Digital Control System (Fall 2010)
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Why Digital Control Accuracy
◦ Using zeros and ones Implementation Errors
◦ Addition and multiplication of stored values Flexibility
◦ Implemented with firmware or software Speed
◦ Speed of computer hardware has increased exponentially
Cost◦ Cost of computer circuitry is continuously decreasing
Lecture 1 - Digital Control System (Fall 2010)
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Structure of Digital Control System
Lecture 1 - Digital Control System (Fall 2010)
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Example – Drug Delivery System
Lecture 1 - Digital Control System (Fall 2010)
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Example – Computer Control of Aircraft Engine
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Example – Control of Robotic Manipulator
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Review of Continuous Time Control
Lecture 1 - Digital Control System (Fall 2010)
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Closed Loop Transfer Function
Lecture 1 - Digital Control System (Fall 2010)
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Stability
Lecture 1 - Digital Control System (Fall 2010)
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Stability (Cont)
Lecture 1 - Digital Control System (Fall 2010)
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Performance
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Performance – Transient Response
Lecture 1 - Digital Control System (Fall 2010)
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Performance – Transient Response
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Performance – Transient Response
Lecture 1 - Digital Control System (Fall 2010)
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Performance – Transient Response
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Performance – Transient Response
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Performance – Transient Response
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Performance – Transient Response
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Performance – Transient Response
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Performance – Steady State Error
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Performance – Steady State Error
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Performance – Steady State Error
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Performance – Steady State Error
Lecture 1 - Digital Control System (Fall 2010)
