Control engineering - load variation

Click For Summary
SUMMARY

This discussion focuses on the concepts of "load variation" and "process disturbance" within closed-loop control systems. A closed-loop system exhibits reduced sensitivity to these factors compared to open-loop systems. Load refers to the demand placed on a system, such as the number of air tools operating in a workshop, while process disturbance involves fluctuations in demand, such as users turning tools on and off. Understanding these terms is crucial for grasping the dynamics of control engineering.

PREREQUISITES
  • Basic understanding of control systems, particularly closed-loop and open-loop systems.
  • Familiarity with terms like "input signal" and "output signal" in control engineering.
  • Knowledge of system demand and how it relates to load in engineering contexts.
  • Concept of process disturbances and their impact on system performance.
NEXT STEPS
  • Research "closed-loop control system design" to understand practical applications.
  • Study "load variation effects in control systems" for deeper insights into system performance.
  • Explore "process disturbance management techniques" to mitigate fluctuations in demand.
  • Learn about "feedback mechanisms in control engineering" to enhance system stability.
USEFUL FOR

This discussion is beneficial for students in control engineering, engineers designing automated systems, and professionals seeking to optimize system performance in response to varying loads and disturbances.

hanson
Messages
312
Reaction score
0
Hi all!
I started my first control engineering course this semester. There are some terms that confused me.
I am now learning closed-loop systems. And the lecturer was discussing the reduced sensiticity to process disturbance and load variation of a closed-loop system when compared to a open-loop system.
But I am confused by the terms "load variation" and "process disturbance"...
Basically, what is a "load"? I was dealing with some input signal and output signal, and what role a "load" plays in a system?
To childish me, "load" is something that a system need to bare or withstand...

Please help.
 
Engineering news on Phys.org
In most cases I can think of, LOAD = DEMAND. You should be developing a system based on the demand of something that needs to be supplied.

For example, if you are describing a system that delivers a certain amount of airflow for a number of air tools at a workshop, the load will be how many tools are operating and what their demand for air is.

Process disturbance in this case would be users turning on and off tools to cause fluctuations in the demand or the supply of air changing for some reason.
 

Similar threads

PWM for controlling liquid flow through a Solenoid Valve
  • · Replies 10 ·
Replies
10
Views
2K
What is a nominal load and payload in control engeneering?
  • · Replies 5 ·
Replies
5
Views
6K
Determine how many bolts are needed to secure a block of steel
  • · Replies 1 ·
Replies
1
Views
2K
Automotive Vehicle and Engine Simulink Model Engine rpm calculation
  • · Replies 2 ·
Replies
2
Views
3K
A practical way to vaporize fuel for high MPG?
  • · Replies 39 ·
2
Replies
39
Views
5K
Effect of load and load distance on peak and avg power
  • · Replies 10 ·
Replies
10
Views
2K
What is the definition of Engine Load
  • · Replies 3 ·
Replies
3
Views
63K
As much steam as possible from engine exhaust gas + warm water?
  • · Replies 25 ·
Replies
25
Views
5K
Could we make a practical solar fridge?
  • · Replies 30 ·
2
Replies
30
Views
4K
Why Does a Triangular Load on a Beam Require Multiple Moment Calculations?
  • · Replies 3 ·
Replies
3
Views
6K