Dizajn sustava DC/DC pretvarača snage s tri neovisno upravljane grane i razvoj pripadajućeg sustava upravljanja

master's thesis

• Title (english): DC/DC power converter system design with three independently controlled legs and development of related control system
• Author: Ivan Župančić
• Mentor: Danijel Pavković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2017-07-19, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom radu je dan kratak pregled pasivnih, poluaktivnih i aktivnih topologija mikromreža. Nakon toga su opisani postupci upravljanja jednostrukim (polu-aktivna topologija) a zatim i višestrukim energetskim pretvaračima (aktivna toplogija). Projektiran je sustav regulacije struje pojedinih spremnika energije, ultrakondenzatora i baterije primjenom kriterija optimuma dvostrukog odnosa. Nakon toga je projektiran sustav regulacije izlaznog napona DC sabirnice za jedan energetski pretvarač. Zatim je primjenjena droop regulacija na jednom energetskom pretvaraču kondicioniranjem reference napona dodatnom povratnom vezom po struji i virtualnim otporom . Kako bi se sprijećila stacionarna odstupanja kod droop regulacije implementiran je nadređeni I regulator. Nakon projektiranja regulatora s jednim spremnikom energije projektirani su regulatori aktivne topologije i droop upravljanja s dva spreminka energije. Zatim je dan pregled u osnovne vrste energetskih pretvarača zajedno s opisom njihova rada. U sklopu ovog diplomskog rada projektirana je eksperimentalna maketa na kojoj je moguće testirati razne tehnike upravljanja mikromrežama, također objašnjen je programski kod za implemtaciju na mikrokontroleru u programskom jeziku C prethodno opisanih tehnika upravljanja.

Abstract (english)

This paper presents a brief overview of passive, semi-active and active microgrid topologies.

Subsequently, a power converter DC link output voltage control system has been designed along with inner current control loops of batteries and ultracapacitors that are set by the damping optimum criterion application. Then, droop regulation was applied to one power converter by conditioning the voltage reference with an additional DC and DC resistance feedback. After designing a single energy tank controller, active topology regulators and a two-state power management droop have been designed. As part of practical work, an experimental model was carefully designed and made as well as a program code for implementation previously described regulation techniques on the microcontroller in the programming language C. Experimental model or DC/DC power converter with three independently controlled legs (power converters) provides users various simulation scenarios to be tested. Some of the regulation techniques have been tested on the experimental model, the results are also presented in this paper.

• Keywords: Aktivni; pasivni i polu aktivni sustavi za pohranu energije; baterije; ultrakondenzatori; regulacija struje i napona; kaskadna struktrua regulacije; PI regulator struje i napona; proporcionalno kondicioniranje reference napona; implementacija tehnika regulacije na mikrokontroleru Atmega 32.
• Keywords (english): Active; passive and semi-active energy storage systems; batteries; ultracapacitors; current and voltage regulation; cascade control structures; PI current and voltage regulators; proportional conditioning of voltage references; implementation of regulation tehneques for microcontroller Atmega 32 Aktivni; pasivni i polu aktivni sustavi za pohranu energije; baterije; ultrakondenzatori; regulacija struje i napona; kaskadna struktrua regulacije; PI regulator struje i napona; proporcionalno kondicioniranje reference napona; implementacija tehnika regulacije na mikrokontroleru Atmega 32.
• Language: croatian
• URN:NBN: urn:nbn:hr:235:787559
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 19:49:21