Linked Questions

11
votes
3answers
8k views

Why do we use step response? [duplicate]

We tend to identify systems more often by using the step response. Why? Especially when the impulse response is directly related to the transfer function?
16
votes
5answers
15k views

How to implement a self tuning PID-like Controller

I am trying to write a micro-controller program for controlling temperature in a system with the following characteristics: output can only be On or Off, with fixed cycle frequencies (~2-10 per hour) ...
19
votes
2answers
1k views

System Modeling for Control Systems

After taking classes in control theory as an undergraduate, I ended up not using them at all after I graduated. I've started to fix that by starting a hobby project in controls. My textbooks are ...
3
votes
5answers
1k views

System response types

Whenever I am given a system type with a certain transfer function, I am always asked to proceed to find out the 1. impulse response and 2. step response of the system. My question is, what is so ...
0
votes
2answers
1k views

Why we can't use step function to identify system's transfer function

The following screenshot is from this web page. The goal is to evaluate (or see if we can evaluate) the transfer function of a system by using the step function as an input. -Please refer the ...
2
votes
1answer
2k views

modeling transfer function of ping pong ball levitation in a tube as a damper

I am building a control system to levitate a ping pong ball at a given height in a clear plastic tube using an arduino and implementing PID control. I have to come up with a transfer function... I am ...
5
votes
1answer
495 views

Using impulse response to control the system

This post by Olin Lathrop is rather inspiring. The system response is the convolution of the control input with this impulse response, computed every control sample, which is every 500 ms in ...
1
vote
2answers
613 views

System Identification (Linear Passive Circuit)

I'm need to find what's inside the following black box but I'm not sure how to exactly do this. simulate this circuit – Schematic created using CircuitLab I'm thinking that I might use the ...
3
votes
1answer
468 views

PID tuning without plant model

My aim is to keep temperature constant at a certain place. I don't have a mathematical model of the plant. Currently, PID is used with some fixed Kp, Ki, and Kd, and I want to optimize these ...
-1
votes
1answer
222 views

basic understanding of PID controller [closed]

Sir my question is how integral component eliminates the steady state error and physical significance of integral and derivative component in a PID controller.