Battery performance characterisation for stand-alone photovoltaic systems

 

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dc.contributor.advisor Eberhard, Anton en_ZA
dc.contributor.advisor Cowan, Bill en_ZA
dc.contributor.author Purcell, C J de V en_ZA
dc.date.accessioned 2016-03-28T14:21:58Z
dc.date.available 2016-03-28T14:21:58Z
dc.date.issued 1991 en_ZA
dc.identifier.citation Purcell, C. 1991. Battery performance characterisation for stand-alone photovoltaic systems. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/18221
dc.description.abstract One of the main factors limiting optimisation of PV system designs over the life of the system has been the lack of battery test data appropriate to PV applications. The main objective of this study was to determine accurate empirical data for locally available lead-acid batteries which could be used in photovoltaic systems and to present this data in a format directly applicable to PV system designers. The study included (i) a review of battery performance regimes typical of PV systems; (ii) a literature review of lead-acid battery performance and reactions important to PV applications, battery electrical models, battery life models, a review of specialist PV battery designs and the interaction of battery and voltage regulator in PV systems;. (iii) a review of testing and research literature, and the design of a suite of experimental procedures suitable for characterising batteries under PV operating regimes; (iv) the design and construction of a specialised battery test-unit to automatically perform tests and capture data; (v) selection, testing and characterisation of five generic types of batteries which could be used in local PV applications. The five types of lead-acid battery were: 1) conventional calcium alloy positive and negative grids, flat plate, flooded electrolyte, vented casing; 2) low antimony alloy positive grid, conventional calcium negative grid, flat plate, flooded electrolyte, vented casing; 3) low antimony alloy positive grid, heat treated calcium negative grid, flat plate, immobilised absorbed electrolyte, sealed casing with 0 2 cycle gas recombination; 4) antimony alloy positive and negative grids, flat plate, flooded electrolyte, vented casing; 5) antimony alloy positive and negative grids, tubular plate, flooded electrolyte, vented casing. Selenium grid alloy cells and gelled electrolyte batteries were not represented amongst the batteries tested, owing to problems of availability or cost. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Energy Research en_ZA
dc.subject.other Applied Science en_ZA
dc.title Battery performance characterisation for stand-alone photovoltaic systems en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Energy Research Centre en_ZA
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Purcell, C. J. d. V. (1991). <i>Battery performance characterisation for stand-alone photovoltaic systems</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Energy Research Centre. Retrieved from http://hdl.handle.net/11427/18221 en_ZA
dc.identifier.chicagocitation Purcell, C J de V. <i>"Battery performance characterisation for stand-alone photovoltaic systems."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Energy Research Centre, 1991. http://hdl.handle.net/11427/18221 en_ZA
dc.identifier.vancouvercitation Purcell CJdV. Battery performance characterisation for stand-alone photovoltaic systems. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Energy Research Centre, 1991 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18221 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Purcell, C J de V AB - One of the main factors limiting optimisation of PV system designs over the life of the system has been the lack of battery test data appropriate to PV applications. The main objective of this study was to determine accurate empirical data for locally available lead-acid batteries which could be used in photovoltaic systems and to present this data in a format directly applicable to PV system designers. The study included (i) a review of battery performance regimes typical of PV systems; (ii) a literature review of lead-acid battery performance and reactions important to PV applications, battery electrical models, battery life models, a review of specialist PV battery designs and the interaction of battery and voltage regulator in PV systems;. (iii) a review of testing and research literature, and the design of a suite of experimental procedures suitable for characterising batteries under PV operating regimes; (iv) the design and construction of a specialised battery test-unit to automatically perform tests and capture data; (v) selection, testing and characterisation of five generic types of batteries which could be used in local PV applications. The five types of lead-acid battery were: 1) conventional calcium alloy positive and negative grids, flat plate, flooded electrolyte, vented casing; 2) low antimony alloy positive grid, conventional calcium negative grid, flat plate, flooded electrolyte, vented casing; 3) low antimony alloy positive grid, heat treated calcium negative grid, flat plate, immobilised absorbed electrolyte, sealed casing with 0 2 cycle gas recombination; 4) antimony alloy positive and negative grids, flat plate, flooded electrolyte, vented casing; 5) antimony alloy positive and negative grids, tubular plate, flooded electrolyte, vented casing. Selenium grid alloy cells and gelled electrolyte batteries were not represented amongst the batteries tested, owing to problems of availability or cost. DA - 1991 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1991 T1 - Battery performance characterisation for stand-alone photovoltaic systems TI - Battery performance characterisation for stand-alone photovoltaic systems UR - http://hdl.handle.net/11427/18221 ER - en_ZA


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