Fuzzy Control

VE6.3.4.3
Fuzzy Control
Fuzzy Control

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Description

System

The experiments are set up with experiment plates in profile frames. The controlled system or control circuit are activated with the Profi-CASSY and the relevant measurement values recorded.

Educational objectives

  • Get familiar with the basic principles of controllers
  • Setpoint and disturbance control
  • Handle analysis and simulation software

Function
Fuzzy logic is a technology for controlling and regulating technical systems without mathematical modelling. With fuzzy logic, control strategies are simply defined with colloquial elements. To formulate the control-related problems in the form of linguistic (= language) rules, physical input variables (e.g. Temperature) are fuzzified, meaning converted from a crisp to a fuzzy value using a membership function. After fuzzification, variables are processed in accordance with linguistic rules. At the output of the fuzzy module, however, crisp - scalar - output variables must be provided again. This makes a final defuzzification necessary. In this training program, the fuzzy controllers are designed with the FLOP module from the WinFACT LD- licence (734 491) software packet.

The equipment set incorporates student experiments which can be carried out in a laboratory safely using safety extra-low voltage. Experiment instructions are contained in a manual in either printed or digital form.

Target Groups
Students completing vocational training in electrical engineering for the industry and students of automation engineering and mechatronics are the target group. The course offers introductory experiments that are very simple and also addresses difficult topics for bachelor-level studies.

Add-ons
The following sets are recommended for further learning:
E 6.3.4.1 Controlling Electronic Systems
E 6.3.4.2 Digital Controlling

Topics

  • Fuzzy logic
  • WinFACT and Profi-CASSY
  • Controlling a second order system with fuzzy controller
  • Fuzzy PI controller
  • Heating control with P controller
  • Heating control with PI controller
  • Climate control system
  • Speed control with PI controller
  • Drive control with fuzzy
  • Position regulation
  • Fill level regulation with fuzzy
  • Controlling the airflow with fuzzy

Components of equipment sets

1 734091 Digital Controlled System LD
1 734121  4  Digital Temperature Controlled System LD
1 734111  8  Set of machines 10 W LD
1 734300 Heel Controlled System LD
1 734501  4  WINFACT LD Starter (one computer) LD
1 734502  4  WINFACT LD Starter (site license) LD
1 775692DE  4  LIT: E6.3.4.3 Fuzzy-Control LD
1 775692EN  4  LIT: E6.3.4.3 Fuzzy-Control LD
1 524016S2  8  Profi-CASSY Starter 2 LD
1 72609  4  Panel frame T130, two-level LD
1 72686  4  DC-Power Supply ± 15 V/3 A LD
1 50059  8  Safety bridging plugs, black, set of 10 LD
1 500592  8  Safety bridging plugs with tap, black, set of 10 LD
2 500641  8  Safety connecting lead, 100 cm, red LD
2 500642  4  Safety connecting lead, 100 cm, blue LD
2 500644  8  Safety connecting lead, 100 cm, black LD
1 51048  4  Magnets, 35 mm Ø, pair LD
1 72610  4  * Panel frame T150, two-level LD
1 734504 * WINFACT LD Edition (one computer) LD
1 734505  4  WINFACT LD Edition (Site Licence) LD
1 734265  8  * Digital Liquid Controlled System LD
1 666630  8  * Blower LD
1 666632 * Windmill type anemometer LD
1 additionally required: 1 PC with Windows 7 / 8.1 / 10 (x86 or x64)
Experiments are operated and evaluated with CASSY Lab 2 and WinFACT.

Articles marked with * are not essential, we do however recommend them to carry out the experiment.

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