Optimizacija proizvodnega procesa referenčne sončne celice

diplomsko delo

Goran Josifoski (Author), Marko Jankovec (Mentor)

Abstract

V diplomskem delu smo se ukvarjali s proizvodnim procesom referenčne sončne celice, ki se uporablja pri merjenju sončnega sevanja in je del merilne opreme, potrebne za določanje učinkovitosti sončnih elektrarn. Pri proizvodnem procesu referenčne sončne celice smo v določenih fazah zaznali priložnost za izboljšave z namenom, da bi zmanjšali delež neustreznih proizvodov in hkrati skrajšali čas izdelave. Predlagane izboljšave se nanašajo na preprečitev kratkega stika pri spajkanju v pretaljevalni pečici z nanašanjem zaščitnega sloja, izdelavo šablone za nanos zaščitnega sloja in izdelavo orodja za lažje in hitrejše odstranjevanje EVA folije. Pri tem smo zmanjšali izmet za približno 50 % pri proizvodni količini okoli 150 kosov na mesec. Naknadno smo izvedli meritve in primerjave IU karakteristik in kotne odvisnosti tako pod simulatorjem sonca kot tudi na prostem v jasnem in oblačnem vremenu (difuzna svetloba). Ugotovili smo, da je referenčna sončna celica, ki so jo razvili v Laboratoriju za fotovoltaiko in optoelektroniko na Fakulteti za elektrotehniko Univerze v Ljubljani, zelo kakovostna, saj ima enostavno zasnovo, pri meritvah se je izkazala kot učinkovita, stabilna in ima minimalno napako pri merjenju kotne odvisnosti ter je kalibrirana, pri tem pa je negotovost ≤ 1 %. Na koncu smo v simulacijskem okolju LTspice zgradili nov električni načrt referenčne sončne celice z namenom izboljšave linearnosti in občutljivosti obstoječe rešitve, pri čemer smo ohranili uveljavljen način uporabe z merilnimi instrumenti.

Keywords

PV moduli;PV celice;referenčne sončne celice;IU karakteristike;EVA folija;standardni testni pogoji;visokošolski strokovni študij;Aplikativna elektrotehnika;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2024
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FE - Faculty of Electrical Engineering
Publisher:	[G. Josifoski]
UDC:	621.383.51(043.2)(0.034.2)
COBISS:	207922179
Views:	51
Downloads:	24
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Optimization of the manufacturing process of a reference solar cell
Secondary abstract:	In this thesis, we focused on the manufacturing process of a reference solar cell, which is used for measuring solar irradiance and is an essential part of the equipment required to determine the efficiency of solar power plants. In the manufacturing process of the reference solar cell, we identified opportunities for improvement at certain stages in order to improve the manufacturing yield and reduce the manufacturing time. The proposed improvements include preventing short-circuiting in the reflow oven by applying a protective layer, the development of a template for the application of this layer and the development of a tool to simplify and speed up the removal of the EVA foil. By applying all the developed improvements, we reduced the rejected products by around 50% for a production volume of around 150 pieces per month. Subsequently, measurements and comparisons of IU characteristics and angular dependence were made both under a sun simulator and outdoors in clear and cloudy weather (diffuse light). We found that the reference solar cell developed in the Laboratory of Photovoltaics and Optoelectronics at the Faculty of Electrical Engineering, University of Ljubljana, is of high quality, as it has a simple design, has proven to be efficient, reliable and stable, has minimal error in the angular dependence measurements, and is calibrated with an uncertainty of ≤ 1%. In the end, a new electrical design of the reference solar cell has been built in the LTspice simulation environment in order to improve the linearity and sensitivity of the existing solution while maintaining the established method of use with measuring instruments.
Secondary keywords:	PV module;PV cell;reference solar cell;IU characteristic;EVA foil;standard test conditions;
Type (COBISS):	Bachelor thesis/paper
Study programme:	1000315
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za elektrotehniko
Pages:	1 spletni vir (1 datoteka PDF (XI, 58 str.))
ID:	25021634