ET 4720 - Digital Control Systems

• Represent and analyze discrete-time control systems using state variables, z-transforms, and time domain techniques.
• Determine the effects of a zero-order hold on a sampled signal.
• Determine the transfer function of a system containing a sampler and zero-order-hold.
• Represent a sampled-data control system in common block diagram forms.
• Determine the transfer function of a closed-loop sampled-data control system.
• Convert transfer functions to difference equations
• Convert difference equations to transfer functions.
• Determine the time and frequency domain responses of sampled-data control systems to arbitrary inputs.
• Determine the stability of discrete-time control systems.
• Incorporate compensators, including a PID compensator, in discrete-time control system and determine the effects of the compensator.
• Determine effective designs of compensators in discrete-time control systems.

• Continuous time control systems.
• Laplace transforms.

• State Variables and State Transition Matrix (2 classes)
• Transfer Functions and State Diagrams (2 classes)
• Controllability and Observability (1 class)
• Analog to Digital conversion (1 class)
• Transfer functions of Discrete Systems (1 class)
• Open-loop and closed-loop transfer function of a discrete system (3 classes)
• Root-locus on the Z-plane (2 classes)
• Stability of discrete control systems (1 class)
• Discrete Compensation methods (1 class)
• Examinations and review. (5 classes)

• Introduction to Tag-Based Programmable Logic Controllers
• Designing Human-Machine Interfaces in Automation Systems
• Timers, Counters, and Math functions in Tag-Based Logic Controllers
• Introduction to Sampled-Data Control Systems