Projektiranje i usporedna simulacijska analiza rezonantnih regulatora za inverter spojen na jednofaznu izmjeničnu mrežu

undergraduate thesis

• Title (english): Design and comparative analysis of resonant controllers for an inverter connected to a signle-phase alternating current grid
• Author: Cvita Pirović
• Mentor: Danijel Pavković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-09-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom radu prikazana je regulacije struje jednofaznog frekvencijskog pretvarača u svrhu potiskivanja istosmjerne komponente struje. Za regulaciju struje projektirane su različite izvedbe rezonatnih regulatora, kao što su PR, PI-R i PID-R čija sinteza je provedena po kriteriju optimuma dvostrukog odnosa. Jednofazni frekvencijski pretvarač opremljen je LCL filtrom preko kojeg je povezan s mrežom, a čija zadaća je između ostalog i smanjenje perturbacija u izlaznoj struji. Prije spajanja sa samom mrežom potrebno je pretvarač sinkronizirati s mrežom, a u ovom radu bit će opisan sustav za sinkronizaciju temeljen na principu fazno-zaključane petlje sa modificiranim faznim detektorom i SOGI estimatorom temeljne komponente napona.

Abstract (english)

This work present current control system for a single-phase AC inverter which for the purpose of suppression DC current component. For current control, different designes of resonant cotroller are designed here, such as proportional-resonant controller, proportional-integral-resonant controller, proporcional-integral-derivative-resonant controller, which are designed according to the damping optimum criterion. A single-phase grid-tied inverter is equipped with a LCL grid-side filter, which is used for reducing perturbation of output current. Before connecting with grid, single-phase gried-tied inverter need to be synchronizade with the grid, and in this work is presented grid synchronization algorithm based on Modified Mixer Phase Detector Phase-Locked Loop and Second-Order Generalized Integrator.

• Keywords: jednofazni frekvencijski pretvarač; PR regulator; PI-R regulator; PID-R regulator; LCL filtar; sinkronizacija
• Keywords (english): single-phase gried-tied inverter; proportional-resonant controller; proportional-integral-resonant controller; proporcional-integral-derivative-resonant controller; LCL filter; synchronization
• Language: croatian
• URN:NBN: urn:nbn:hr:235:629746
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access; Embargo expiration date: 2022-09-17
• Created on: 2020-09-17 07:47:23