1 / 7

Understanding Feedback Loops in Control Systems: A Comprehensive Overview

This guide delves into the intricacies of feedback loops within control systems, emphasizing the interaction between controlled and manipulated variables. It covers the mathematical foundation of closed-loop transfer functions and the critical role of the controller in achieving stable operation. By analyzing the relationships among process gain, setpoint, and the sensor’s output, readers will learn how to effectively manipulate system variables to optimize control performance. The document simplifies complex concepts while providing valuable insights for engineers and students alike.

reya
Télécharger la présentation

Understanding Feedback Loops in Control Systems: A Comprehensive Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Feedback

  2. Feedback loop (CV changes input) + - E Controller Gc PlantGp SP MV (Manipulated Variable S SensorGs CV Controlled Variable

  3. The input of each block determines the output • CV = Gp(s)*MV PlantGp MV (Manipulated Variable CV Controlled Variable

  4. MV = Gc E E Controller Gc MV (Manipulated Variable

  5. Combine blocks • CV = Gp*Gc*E E Controller Gc PlantGp MV (Manipulated Variable CV Controlled Variable

  6. E = SP – S • S = Gs*CV or E = SP – Gs*CV + - E SP S SensorGs CV Controlled Variable

  7. Do the math to get the “closed loop” transfer function • CV = Gp*Gc*E • E = SP – Gs*CV • CV = Gp*Gc*(SP – Gs*CV) • Solve for CV

More Related