Chapter nine
Tutorial sheets
Tutorial sheets
These tutorials are on the theme of linear feedback control, for example with G(s) representing a system, M(s) a compensator and d an input disturbance signal:
Core skills are things such as:
Why would I create such a feedback loop?
How do such closed-loop system behave?
Are there generic analysis tools for assessing the behaviour?
Are there generic design tools for ensuring the behaviour meets specifications?
The tutorials are a combination of PDF files, with brief worked solutions and video talk through tutorials showing detailed problem solving procedures.
Defining closed-loop transfer functions and links between compensator parameters and closed-loop behaviour.
Video tutorials with worked solutions to reinforce concepts from tutorials above.
Several of the gain questions overlaps with the similar section in modelling.
Introductory questions on gain and offset (PDF, 627KB)
Offset and advanced scenarios (PDF, 595KB)
Video tutorials with worked solutions to reinforce concepts from tutorials above.
Students should handle small variations on how blocks/signals are connected in a feedback loop.
Simple block diagram questions (PDF, 632KB)
Videos giving some worked examples in a tutorial fashion of PI analysis and design.
Video comparing different PI designs – first order examples.
Video comparing different PI designs – second order examples.
Video on iterative design – Note: there is a minor typo in cruise control closed loop model – should be 0.5/(s+0.5).
More representative of exam style questions with multi-step requirements and re-emphasising the potential of MATLAB for checking work and incorporating PI design.
Exam style questions (PDF, 712KB)
Use of MATLAB (PDF, 405KB)