Rotary Inverted Pendulum

Description of control challenge
The control aim is to stabilise pendulum link at upper unstable position and:
- - to stabilise rotary arm at zero position
- - to track the step signal by the rotary arm
- - to track continuous trajectory by the rotary arm
As an experimental plarform, the rotary inverted pendulum QUBE-Servo-2 is selected (see Quanser webpage)