Večkanalni napajalno-merilni instrument za karakterizacijo sončnih celic

PODPEČAN, ROK (author), Jankovec, Marko (mentor)

V tem delu je predstavljen razvoj strojne in programske opreme napajalno-merilne enote (source mesure unit) uSMU, ki je nadgradnja magistrskega dela Domna Banfija leta 2022. Izdelani instrument vsebuje 6 kanalov s splošno funkcionalnostjo 4-kvadrantnega vira ter merilnika napetosti in toka v napetostnem območju ±12 V in tokovnem območju ±500 mA. Implementirane so tudi nekatere funkcije, ki so specifično namenjene za uporabo v laboratoriju za fotovoltaiko in optoelektroniko za karakterizacijo sončnih celic, kot je sledenje točki maksimalne moči (MPPT ) in obvod za priklop zunanjega instrumenta. Predstavljena je evaluacija posameznih funkcij instrumenta, kot je natančnost napetostnih in tokovnih meritev, ter slabosti, ki so se pokazale med razvojem in njihove potencialne rešitve za bodoči razvoj. Na kratko je opisana vključitev naprave v realni merilni sistem, njena uporaba in rezultati.

• Language: Slovenian
• Keywords: metrologija, elektronika, tiskana vezja, vgrajeni sistemi, merilni sistemi, mikrokrmilnik, MPPT, napajalno-merilna enota
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FE - Faculty of Electrical Engineering
• Year: 2025
• PID: 20.500.12556/RUL-173653
• COBISS.SI-ID: 257853955
• Publication date in RUL: 19.09.2025

Secondary language

• Language: English
• Title: Multichannel Source Measurement Instrument for Solar Cell Characterization

Abstract

Presented in this work is the development of hardware and software of the source measure unit uSMU, which is an upgrade to Domen Banfi’s 2022 master’s thesis. The designed instrument contains 6 channels with general functionality of a 4-quadrant source and voltage and current meter in a ±12 V voltage range and ±500 mA current range. Also implemented are some functions, specifically intended for use in the laboratory of photovoltaics and optoelectronics for the purpose of solar cell characterization, such as maximum power point tracking (MPPT ) and a bypass for connecting an external instrument. Presented is an evaluation of the instrument’s individual functions, such as voltage and current measurement accuracy, along with the flaws that became apparent during development. It is briefly mentioned how the device was included into a practical measurement system, it’s use and results.

• Keywords: metrology, electronics, integrated circuits, embedded systems, measurement system, microcontroller, MPPT, source measure unit