Modelsko prediktivno upravljanje s konačnim skupom upravljačkih akcija u učinskoj elektronici

master's thesis

• Title (english): Finite Control Set Model Predictive Control for Power Electronics
• Author: Ivana Jerončić
• Mentor: Mato Baotić (mentor)
• Committee member: Mato Baotić (predsjednik povjerenstva)
• Committee member: Nedjeljko Perić (član povjerenstva)
• Committee member: Vinko Lešić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2017-07-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Optimizacijski problem modelskog prediktivnog upravljanja strujom frekvencijskog pretvarača formuliran je u obliku problema najmanjih kvadrata s cjelobrojnim rješenjem. Korištenjem sphere decoding načela izveden je efikasan algoritam za određivanje optimalne upravljačke akcije. Nadalje, kako bi se računska složenost dodatno smanjila, koristi se algoritam redukcije koji preoblikuje prostor traženja rješenja u kojem se nalazi cjelobrojno rješenje optimizacijskog problema. Navedeni algoritmi su pokazani na modelu dvorazinskog trofaznog pretvarača spojenog na naponsku mrežu.

Abstract (english)

For direct model predictive control with reference tracking of the converter current, the optimization problem is formulated as an integer least-squares problem. Sphere decoding principles are adapted to this optimization problem and an efficient algorithm for computing optimal switch positions is derived. Furthermore, in order to reduce the computational effort even more, a reduction algorithm is added as a preprocessing stage to reshape the search space in which the integer solution lies. Three-phase grid connected converter serves as an illustrative example to demonstrate the effectiveness of the proposed algorithms.

• Keywords: modelsko prediktivno upravljanje; sphere decoding; problem najmanjih kvadrata; konačan skup upravljačkih akcija; učinska elektronika; upravljanje strujom; LLL redukcija prostora rješenja
• Keywords (english): model predictive control (MPC); sphere decoding; integer least-squares problem; finite control set; power electronics; current control; LLL lattice basis reduction
• Language: croatian
• URN:NBN: urn:nbn:hr:168:683783
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2019-03-13 21:13:57