Fuzzy Control

E6.3.4.3

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

1	734 091	Digital Controlled System
1	734 121 4	Digital Temperature Controlled System
1	734 111 8	Set of machines 10 W
1	734 300	Heel Controlled System
1	734 501 4	WINFACT LD Starter (one computer)
1	734 502 4	WINFACT LD Starter (site license)
1	775 692DE 4	LIT-print: Fuzzy-Control, German
1	775 692EN 4	LIT-print: Fuzzy-Control
1	524 016S2 8	Profi-CASSY Starter 2
1	726 09 4	Panel frame T130, two-level
1	726 86 4	Stabilised power supply unit ±15 V / 3 A
1	500 59 8	Safety bridging plugs, black, set of 10
1	500 592 8	Safety bridging plugs with tap, black, set of 10
2	500 641 8	Safety experiment cable, 100 cm, red
2	500 642 4	Safety experiment cable, 100 cm, blue
2	500 644 8	Safety experiment cable, 100 cm, black
1	510 48 4	Magnets, 35 mm diam., pair
1	726 10 4	* Panel frame T150, two-level
1	734 504	* WINFACT LD Edition (one computer)
1	734 505 4	WINFACT LD Edition (Site Licence)
1	734 265 8	* Digital Liquid Controlled System
1	666 630 8	* Blower
1	666 632	* Windmill type anemometer
1		additionally required: 1 PC with Windows 7 / 8.1 / 10 (x86 or x64)

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

Fuzzy Control

All technologies