Introduction to PID Controller
PID Controller What is PID? PID stands for Proportional Integral Derivative controller. It is one of the modern controller technique that use negative feedback in order to have proper required output. To make it understand let me use some analogy of riding a bike. Let say we are riding a bike on a highway with some no rmal traffic. To accelerate, we will rotate the knob on the right handle, so the vehicle will accelerate in proportional to how much the knob is rotated at that time. This is known as Proportional controller . We increase and decrease the acceleration according to our need and proportionally with the help of knob. In this, we are maintaining our speed to move constantly on the path. Now, there is a hill the bike need to climb. In order to maintain the same speed, we quickly apply more acceleration to gain same speed on the hill so that the vehicle do not slow down. This is called as Derivative control. Whenever there is a large error in speed achievement, it can be ac...