Review: Linear, nonlinear and intelligent controllers for the inverted pendulum problem

The pendulum is the most known mechanism of everyone. This is due to its importance historical and also to the number of the invention based on its operating principle. The inverted pendulum is an unstable system perfectly described by a nonlinear model obtained by applying the laws of physics. The design goal of the control law is to stabilize the pendulum in its upright unstable equilibrium position. In this article, a review of the different control law that have been applied to the system of the inverted pendulum with a cart is presented. And a comparison of each controller are discussed.