Řídicí strategie víceúrovňových měničů pro aplikace v elektrických pohonech

Norbert Kanaloš

Control Strategy of Multilevel Converters for Variable Speed Drives

Type of document

diplomová práce
master thesis

Author

Norbert Kanaloš

Supervisor

Kobrle Pavel

Opponent

Stejskal Petr

Field of study

Elektrické pohony

Study program

Elektrotechnika, energetika a management

Institutions assigning rank

katedra elektrických pohonů a trakce

Rights

A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics http://knihovny.cvut.cz/vychova/vskp.html
Vysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou http://knihovny.cvut.cz/vychova/vskp.html

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Abstract

This thesis is focused on the control strategy of the three-level neutral point clamped converter for variable speed drives and is divided into 2 parts. In the theoretical part are presented the conventional typologies of two-level and multilevel converters and modulation techniques that are used to control their output voltage. Further, the mathematical model of the induction motor and reference frames are derived, together with the control strategy of the induction motor. Finally, the struggles of controlling the variable frequency drives are described. The objective of the practical part is to make a functional model of the three-level converter and appropriate control strategy. The simulation model is made in the MATLAB Simulink environment with the use of Simscape library. The conducted simulations are then compared and evaluated