20.500.12556/DKUM-79963 Nadgradnja algoritma mehkega vodenja na programirljivem logičnem krmilniku s povezavo v okolje Matlab magistrsko delo Fuzzy control algorithm upgrade in programmable logic controller with connection to Matlab environment Današnji industrijski programirljivi logični krmilniki (PLK) omogočajo vgradnjo vedno bolj sofisticirane programske kode in s tem izvajanje zahtevnih logičnih operacij v industrijskih aplikacijah. Programsko okolje TIA portal (Siemens) vključuje višji programski jezik SCL (Structured Control Language), ki v obliki strukturiranega programiranja omogoča razvoj naprednih algoritmov za izvajanje v PLK jedru. Vodenje nelinearnih sistemov zahteva razvoj algoritmov vodenja, ki omogočajo zanesljivo delovanje po celotnem delovnem področju. Le-ti so razviti na osnovi metod mehkega računanja npr. mehka logika, nevronske mreže, algoritmi za iskanje optimalnih parametrov, itd. V magistrskem delu smo se osredotočili na razvoj in razširitev obstoječe SCL kode za izvedbo mehke logike v PLK, ki izvaja aplikacije mehkega vodenja. Načrtovanje algoritma je izvedeno v okolju Matlab/Simulink z orodjem Fuzzy Control toolbox, kjer se izbrana struktura in pravila izvozijo v ustrezno SCL kodo. Takšna univerzalno prilagodljiva in prenosljiva struktura bloka (vhodi/izhodi/pravila) se kot SCL koda uvozi v PLK programsko okolje ter generira funkcijski blok za uporabo v aplikaciji vodenja. Na ta način je možno funkcijske bloke razviti v različnih verzijah TIA portala in na različnih modelih PLK-jev. Razvite bloke smo preizkusili na laboratorijskih modelih regulacije pretoka zraka in regulaciji nivoja treh povezanih hidravličnih posod. Today's industrial programmable logic controllers (PLCs) enable the integration of increasingly sophisticated program code and the implementation of complex logic operations in industrial applications. The TIA portal software (Siemens) includes the higher-level SCL (Structured Control Language) programming language, which in the form of structured programming enables the development of advanced algorithms for implementation in the PLC core. Control of nonlinear systems requires the development of control algorithms that enable reliable operation throughout the work area. These are developed on the basis of soft computing methods e.g. fuzzy logic, neural networks, algorithms for finding optimal parameters, etc. In the master's thesis, we focused on the development and extension of the existing SCL code for the implementation of fuzzy logic in a PLC that implements fuzzy control applications. The design of the algorithm is performed in the Matlab / Simulink environment with the Fuzzy Control toolbox, where the selected structure and rules are exported to the appropriate SCL code. Such a universally adaptable and transferable block structure (inputs / outputs / rules) is imported as SCL code into the PLC programming environment and generates a function block for use in the control application. In this way, function blocks can be developed in different versions of the TIA portal and on different models of PLCs. The developed blocks were tested on laboratory models of air flow regulation and level regulation of three connected hydraulic vessels. Mehka logika TIA portal Matlab/Simulink regulacija Fuzzy logic TIA portal Matlab/Simulink control true true false [M. Budna] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2021-08-24 16:37:35 2021-10-18 12:55:48 2022-08-09 22:18:04 0000-00-00 00:00:00 2021 0 Maribor 0 Maribor XIII, 78 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 681.5:621.865.8(043.2) 83066627 MAG_Budna_Matej_2021.pdf MAG_Budna_Matej_2021.pdf 1 99465DA36AF2D0A52BB7970C6B126CDE d1e3ddaac2ebf7faedd8b48f5564f0651ba2e2168b71634c7a3ce5fe3c35f6cc ff00fb70-08a5-11ec-9e82-00155d581298 20.500.12556/dkum/6119073d-1885-4221-99f7-c04851984147 https://dk.um.si/Dokument.php?lang=slv&id=152543 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0