Pls,can someone help me with project topics in control design?

pls,i need three easy to do topics on control systems and design for my seminar presentation as well as project.thanks.Pls,can someone help me with project topics in control design?
1.) PID control what is it?


2.) Control signal standards


3.) Introduction to PLC controllerPls,can someone help me with project topics in control design?
Ideas:


Demo Control using Lego Mindstorms





Implement and test one of the designs from the four examples in chapter ten of Magrabs ';An Engineers Guide to Matlab';


- DC motor with flexible shaft


- Single Axis magnetic suspension system


- Inverted Pendulum


- Magnetically Suspended Flywheel
1. P, PD, PI, PID Controllers


Demonstrate control using each of above controller types and explain benefits of adding derivative and/or integral gains.





2. Lead/ Lag Controller


Compare/contrast with PID. Use frequency response and root locus analysis to explain benefits.





Apply the above control approaches to some common applications:


1. Typical 2nd order mass-sping damper


2. Pendulum (regular or inverted)


3. Two masses joined by a spring (input is force on mass 1, output is position of mass 2)


4. Nonminimum phase plant (zero in the right hand plane)





Let me know if the class is a bit more advanced than this.