Fuzzy Control

VE6.3.4.3

Fuzzy Control

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Description

System

The experiments are set up with experimental panels in the profile frame. The controlled system or control loop is controlled with the Profi-CASSY and the measured values of interest are recorded.

Learning objectives

Recognising basic control principles
Management and fault control
Handling 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 using elements of colloquial language. To formulate the control problem in the form of linguistic rules, physical input variables (e.g. temperature) are fuzzified, i.e. mapped to fuzzy quantities using a membership function. After fuzzification, the variables are processed according to linguistic rules. However, sharp - scalar - output variables must be available again at the output of the fuzzy module. For this reason, a final defuzzification is required. In this practical course, the fuzzy controllers are designed using the FLOP module from the WinFACT LD licence software package (734504).

Method

The equipment includes student experiments in the laboratory with non-hazardous low voltage. Experimental procedures are carried out using a manual in printed or electronic form.

Target groups

Vocational training in electrical engineering in trade and industry and students specialising in automation technology and mechatronics. The course offers both introductory courses at a basic level as well as challenging topics for bachelor's programmes.

Additions

The following equipment is recommended for in-depth study:

E6.3.4.1 Control of electronic routes
E6.3.4.2 Digital control

Topics

Fuzzy logic
WinFACT and Profi-CASSY
Control of a 2nd order system with fuzzy controller
Fuzzy PI controller
Heating control with P-controller
Heating control with PI controller
Air conditioning
Speed control with PI controller
Drive control with fuzzy
Position control
Level control with fuzzy
Control of the air flow with fuzzy

Components of equipment sets

1	734091	Digital Controlled System
1	734265 8	Digital Liquid Controlled System
1	666630 8	Blower
1	666632	Windmill type anemometer
1	734121 4	Digital Temperature Controlled System
1	734111 8	Set of machines 10 W
1	734300	Heel Controlled System
1	51048 4	Magnets, 35 mm diam., pair

Measuring devices
1	524016S2 8	Profi-CASSY Starter 2

Literature
1	775692DE 4	LIT-print: Fuzzy-Control, German
1	775692EN 4	LIT-print: Fuzzy-Control

Software and instructions
1	734504	** WINFACT LD Edition (one computer)
1	734505 4	WINFACT LD Edition (Site Licence)

Power supply
1	72686 4	** Stabilised power supply unit ±15 V / 3 A

Accessories
1	72609 4	** Panel frame T130, two-level
1	72610 4	Panel frame T150, two-level
1	50059 8	** Safety bridging plugs, black, set of 10
1	500592 8	** Safety bridging plugs with tap, black, set of 10
2	500641 8	** Safety experiment cable, 100 cm, red
2	500642 4	** Safety experiment cable, 100 cm, blue
2	500644 8	** Safety experiment cable, 100 cm, black

Additionally required
0		PC with Windows 7/8/10 64 Bit Edition and one free USB interface

Articles marked with ** are additionally required.

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Fuzzy Control

Description

System

Learning objectives

Function

Method

Target groups

Additions

Topics

Components of equipment sets

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