Povećanje energetske učinkovitosti tračničkog vozila primjenom sustava pohrane energije kod regenerativnog kočenja

undergraduate thesis

• Title (english): Increasing the energy efficiency of rail vehicles using energy storage system with regenerative braking
• Author: Marko Filipović
• Mentor: Željko Ban (mentor)
• Committee member: Željko Ban (predsjednik povjerenstva)
• Committee member: Viktor Šunde (član povjerenstva)
• Committee member: Željko Jakopović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2020-08-27, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Analizom pojednostavljenog matematičkog modela tračničkog vozila programskim paketom MATLAB/Simulink testirana su tri različita algoritma upravljanja toka energije regenerativnog kočenja tračničkog vozila na prugama različitih vertikalnih profila. Prikazana je ušteda energije tj. smanjenje opterećenja kontaktne mreže odnosno smanjenje vršnih vrijednosti struje, te način smanjenja i optimiranja broja ciklusa superkondenzatora kako ne bi došlo do degeneracije superkondenzatora, čime bi projekt pohrane energije regenerativnog kočenja s primjenom superkondenzatora postao financijski neisplativ. Analizom je utvrđeno kako optimalni algoritam značajno smanjuje broj ciklusa superkondenzatora, a ušteda energije ostaje približno jednaka maksimalnoj uštedi energije korištenjem superkondenzatora kao medija za pohranu energije regenerativnog kočenja. Također je prikazano kako algoritmi imaju najveću uštedu prilikom vožnje na prugama koje u svojem vertikalnom profilu imaju duge nizbrdice.

Abstract (english)

Based on a simplified mathematical model of a rail vehicle analysis, three different algorithms for managing the energy flow of regenerative braking of a rail vehicle on lines of different vertical profiles were obtained. Model simulation and result analysis is provided by MATLAB/Simulink program package. Energy savings are shown by reducing the load on the catenary or reducing the peak values of current, and how to reduce and optimize the number of cycles of supercapacitors so as not to degenerate supercapacitors, which would make the project of storage of regenerative braking energy using super capacitors financially unprofitable. The analysis found that the optimal algorithm significantly reduces the number of cycles of the supercapacitor, and the energy savings remain approximately equal to the maximum energy savings by using the supercapacitor as a medium for storing regenerative braking energy. It is also shown that the algorithms have the greatest savings when driving on tracks that have long descents in their vertical profile.

• Keywords: tračničko vozilo; električno vozilo; superkondenzator; regenerativno kočenje; algoritam upravljanja toka energije
• Keywords (english): rail vehicle; electric vehicle; supercapacitor; regenerative braking; power flow control algorithm
• Language: croatian
• URN:NBN: urn:nbn:hr:168:445554
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-13 09:59:10