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doctoral thesis
Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije
2023. urn:nbn:hr:179:571533
Šimunović, Jakov
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Mechanical Engineering and Naval Architecture

Cite this document

Šimunović, J. (2023). Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije (Doctoral thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:571533

Šimunović, Jakov. "Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije." Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2023. https://urn.nsk.hr/urn:nbn:hr:179:571533

Šimunović, Jakov. "Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije." Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2023. https://urn.nsk.hr/urn:nbn:hr:179:571533

Šimunović, J. (2023). 'Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije', Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 01 February 2025, https://urn.nsk.hr/urn:nbn:hr:179:571533

Šimunović J. Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije [Doctoral thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2023 [cited 2025 February 01] Available at: https://urn.nsk.hr/urn:nbn:hr:179:571533

J. Šimunović, "Utjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije", Doctoral thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:179:571533

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Metadata
TitleUtjecaj gubitka kapaciteta komponenti na radne parametre samostalnog hibridnog energetskog sustava s obnovljivim izvorima energije
Title (english)The effect of components capacity loss on the performance parameters of a stand-alone hybrid energy system with renewable energy sources
AuthorJakov Šimunović
MentorGojmir Radica https://orcid.org/0000-0001-8555-1503 (mentor)
Committee memberFrano Barbir https://orcid.org/0000-0002-5755-1503 (predsjednik povjerenstva)
Committee memberSandro Nižetić https://orcid.org/0000-0001-6896-4605 (član povjerenstva)
Committee memberBranko Klarin https://orcid.org/0000-0002-9735-5128 (član povjerenstva)
Committee memberGoran Krajačić https://orcid.org/0000-0003-4481-8288 (član povjerenstva)
Committee memberZdeslav Jurić https://orcid.org/0000-0002-1273-8606 (član povjerenstva)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Mechanical Engineering and Naval Architecture)
Split
Defense date and country2023-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Process Energy Engineering
Universal decimal classification
(UDC)		621 - Mechanical engineering. Nuclear technology. Machinery
Abstract
U ovom istraživanju je razmatran samostalni hibridni energetski sustav sastavljen od PV modula i vjetroturbine za proizvodnju energije, olovno-kiselinske baterije za kratkoročno skladištenje energije i vodikovog podsustava, sastavljenog od PEM elektrolizatora, višestupanjskog kompresora, spremnika vodika i PEM gorivnih članaka, za dugoročno skladištenje energije. Radne performanse sustava su razmatrane za tri različita profila opterećenja i dvije različite strategije upravljanje energijom. Razmatrani profili opterećenja su: konstantan profil opterećenja; stohastički profil opterećenja; impulsni profil opterećenja. U svrhu ovog istraživanja su izrađeni algoritmi za generiranje stohastičkog i impulsnog profila opterećenja. Razmatrane strategije upravljanja energijom su: strategija upravljanja energijom na bazi balansiranja energije unutar sustava; strategija upravljanja energijom na bazi logike petlja dvostruke histereze. Dimenzioniranje sustava je izvršeno višeciljnom optimizacijom korištenjem MATLAB GA Optimization Toolbox-a. Razmatrane su tri funkcije cilja: maksimalna energetska učinkovitost sustava; maksimalna pouzdanost sustava definirana životnim vijekom komponenata; minimalna cijena korisne energije. Za svaku od komponenata sustava je implementiran matematički model radnih karakteristika unutar programskog paketa MATLAB. Za PV modul, olovno-kiselinsku bateriju, PEM elektrolizator i PEM gorivni članak je također implementiran matematički model gubitka kapaciteta. U svrhu ovog istraživanja su razvijeni modeli gubitka kapaciteta PEM elektrolizatora i PEM gorivnih članaka. Za svaku od razmatranih strategija upravljanja energijom je izrađen simulator rada sustava unutar programskog paketa MATLAB, a simulacije rada sustava su izvršene za vremenski period od 20 godina. Rezultati istraživanja su pokazali izravan utjecaj strategija za upravljanje energijom na dinamiku gubitka kapaciteta olovno-kiselinske baterije, PEM elektrolizatora i PEM gorivnih članaka. Nadalje, rezultati su također pokazali potrebe većih kapaciteta pojedinih komponenata u svrhu kompenzacije gubitka kapaciteta.
Abstract (english)
In this study, a stand-alone hybrid renewable energy system composed of a PV module and a wind turbine for energy production, a lead-acid battery for short-term energy storage, and a hydrogen subsystem consisting of a PEM electrolyzer, a multi-stage compressor, a hydrogen tank, and PEM fuel cells, for long-term energy storage was considered. The system's operating performance was evaluated for three different end-user load profiles and two different energy management strategies. Considered load profiles are: constant load profile; stochastic load profile; impulse load profile. For this research, algorithms were developed for generating stochastic and impulse load profiles. The considered energy management strategies are: energy management strategy based on energy balancing within the system; energy management strategy based on double hysteresis loop logic. System sizing was performed by multi-objective optimization using the MATLAB GA Optimization Toolbox. Three objective functions were considered: maximum system energy efficiency; maximum system reliability defined by the component's lifetime; minimum levelised cost of energy. A mathematical model of operating characteristics has been implemented within the MATLAB software package for each system component. A mathematical capacity loss model was also implemented for the PV module, lead-acid battery, PEM electrolyzer, and PEM fuel cell. For this research, capacity loss models of PEM electrolyzers and PEM fuel cells were developed. For each of the considered energy management strategies, a system operation simulator was created within the MATLAB software package, and the system operation simulations were performed for a 20 years time period. The research results showed a direct impact of energy management strategies on the capacity loss dynamics of lead-acid batteries, PEM electrolyzers, and PEM fuel cells. Furthermore, the results also showed the need for higher capacities of individual components in order to compensate for the loss of capacity.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:571533
Promotion2023
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti, polje strojarstvo (doktor/doktorica znanosti, područje tehničkih znanosti, polje strojarstvo)
Type of resourceText
Extent179 str.
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-10-18 12:59:53