Razvoj adaptivnog sustava regulacije punjača baterije sa estimacijom napona otvorenog kruga

master's thesis

• Title (english): Development of adaptive battery charger control system with open-circuit voltage estimation
• Author: Antun Premec
• Mentor: Danijel Pavković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2020-07-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Baterijski sustavi se razvijaju u cilju povećanja mobilnosti i pouzdanosti uređaja. Kao i svaki drugi realni sustav, baterijski sustavi imaju neizbježne gubitke. Unatoč neizbježnosti pojave gubitaka njihov utjecaj je moguće smanjiti ili potpuno ukloniti. Cilj ovog rada je razvoj sustava koji ublažuju utjecaj spomenutih gubitaka tijekom procesa punjenja baterija kako bi se one mogle napuniti do maksimalnog nivoa punjenja. U radu je dan opis tehnologije elektrokemijskih baterija, kao i njihov matematički opis. Zatim je prikazana struktura i sinteza elemenata regulacijskog kruga. S obzirom da je razvoj adaptivne regulacije baziran na veličinama koje nije moguće mjeriti u sustav je uveden estimator stanja. Funkcionalnost opisanih sustava i njihova usporedba je prikazana simulacijskim rezultatima uz prikladne opise.

Abstract (english)

Battery systems are developed with the objective to increase mobility and reliability of devices. As any other realistic system, battery system suffer inevitable losses. Despite the inevitability of losses it is possible to avoid or decrease their effect. Purpose of this thesis is to develop systems which ameliorate the effects the aforementioned losses have on the charging process, thus allowing for more effective battery charging process. Description of technology of electrochemical batteries is given in this thesis, with appropriate mathematical models. Afterwards follows description of control system with defining of the control system elements. Since the development of adaptive battery charger control system is carried out with variables which are not measurable, state estimator is introduced. Functionality and comparison of described systems is displayed with simulation results.

• Keywords: elektrokemijske baterije; Theveninov model; punjač baterija; CCCV regulacija punjenja; kaskadna struktura; estimacija stanja; Luenbergov estimator; kompenzacija gubitaka
• Keywords (english): batteries; Thevenin model; battery charger; CCCV charger control; cascaded structure; state estimator; Luenberg estimator; compenzation
• Language: croatian
• URN:NBN: urn:nbn:hr:235:633160
• 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: 2020-07-06 13:24:14