Curious Silly Yours

Source: MathWorks Source: MathWorks   REVISION In previous blog, we saw what is control system , what is  PID controller and it's basic explanation. I really hope you all are familiar with all these concepts and now we can further go to MATLAB/Simulink application of this controller. Steps to Simulation It has always been observed that with low RAM or after internet connection, the MATLAB/Simulink become slow in functioning. The Simulink takes time to open, so using command line to open Simulink would be better. Command Line text for MATLAB Follow the steps after opening the blank Simulink Model now add the following blocks: 1. Transfer fcn 2.  Add block 3. Step 4.  PID block Now connect all this in given formation in this image Now open the transfer function block and configure it like this In this, the array of the numerator coefficients of  s², s and constant, must be written and same as for denominator as highlighted . Now open the PID controller block a...

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...