Evaluation of two prototype three phase photovoltaic water pumping systems

Simple item page
dc.contributor.advisorCowan, Billen_ZA
dc.contributor.advisorGreene, Johnen_ZA
dc.contributor.authorScholle, Axelen_ZA
dc.date.accessioned2014-11-15T19:32:32Z
dc.date.available2014-11-15T19:32:32Z
dc.date.issued1994en_ZA
dc.descriptionBibliography: p. 221-223.en_ZA
dc.description.abstractTwo prototype three phase AC photovoltaic pump systems (Solvo, ML T) and a DC PV pump (Miltek) were tested on a farm borehole in Namibia (latitude 21°6', longitude 17°6'). The PV array consisted of twelve modules (636Wpeak) mounted on a single-axis passive tracker. The depth of the water was 75m and a progressive cavity pump with a self-compensating stator was used in all the tests. Customised data acquisition was designed to measure performance characteristics through a range of operating conditions (mainly steady state); a secondary data acquisition system was used to capture samples of high frequency signals. The data allowed detailed analysis of system, subsystem and component performance, as well as performance evaluation over Standard Solar Days. The focus of the investigation was evaluation of the AC prototypes, in terms of performance, other technical factors, reliability and economic criteria. The analog-based DC system served as a basis for comparison. Both AC systems employed microprocessor control and PWM variable-frequency variable-voltage inversion. Efficiencies, optimality, stability, start-up behaviour, non-productive operating modes and protection were examined. A number of recommendations were proposed for improvements in the basic control algorithms, monitoring and managing non-productive modes, improved protection, layout and user diagnostic features.en_ZA
dc.identifier.apacitationScholle, A. (1994). <i>Evaluation of two prototype three phase photovoltaic water pumping systems</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Energy Research Centre. Retrieved from http://hdl.handle.net/11427/9626en_ZA
dc.identifier.chicagocitationScholle, Axel. <i>"Evaluation of two prototype three phase photovoltaic water pumping systems."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Energy Research Centre, 1994. http://hdl.handle.net/11427/9626en_ZA
dc.identifier.citationScholle, A. 1994. Evaluation of two prototype three phase photovoltaic water pumping systems. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Scholle, Axel AB - Two prototype three phase AC photovoltaic pump systems (Solvo, ML T) and a DC PV pump (Miltek) were tested on a farm borehole in Namibia (latitude 21°6', longitude 17°6'). The PV array consisted of twelve modules (636Wpeak) mounted on a single-axis passive tracker. The depth of the water was 75m and a progressive cavity pump with a self-compensating stator was used in all the tests. Customised data acquisition was designed to measure performance characteristics through a range of operating conditions (mainly steady state); a secondary data acquisition system was used to capture samples of high frequency signals. The data allowed detailed analysis of system, subsystem and component performance, as well as performance evaluation over Standard Solar Days. The focus of the investigation was evaluation of the AC prototypes, in terms of performance, other technical factors, reliability and economic criteria. The analog-based DC system served as a basis for comparison. Both AC systems employed microprocessor control and PWM variable-frequency variable-voltage inversion. Efficiencies, optimality, stability, start-up behaviour, non-productive operating modes and protection were examined. A number of recommendations were proposed for improvements in the basic control algorithms, monitoring and managing non-productive modes, improved protection, layout and user diagnostic features. DA - 1994 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1994 T1 - Evaluation of two prototype three phase photovoltaic water pumping systems TI - Evaluation of two prototype three phase photovoltaic water pumping systems UR - http://hdl.handle.net/11427/9626 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/9626
dc.identifier.vancouvercitationScholle A. Evaluation of two prototype three phase photovoltaic water pumping systems. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Energy Research Centre, 1994 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/9626en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentEnergy Research Centreen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherEnergy and Development Studiesen_ZA
dc.titleEvaluation of two prototype three phase photovoltaic water pumping systemsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_ebe_1994_scholle_a.pdf
Size:
6.57 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters