Development of a source-measurement instrument for lab-scale solar cells and mini-modules

V magistrskem delu se ukvarjamo z razvojem merilne naprave za testanje sončnih celic in mini-modulov v različnih delovnih točkah, namenjeno uporabi v zunanjih ali notranjih pogojih. Naloga naprave je, da nastavi izbrano napetost in izmeri tok in napetost na testirani celici ali mini-modulu. Naprava lahko testira do šest vzorcev istočasno. Naprava nudi štiri kvadrantno delovanje na širokem napetostnem (±12 V) in tokovnem (±50 mA) območju, kar zagotavlja podporo širokemu naboru celic in mini-modulov laboratorijske izdelave. Komunikacija z napravo poteka skladno s SCPI protokolom prek USB vodila. S tem je naprava sposobna opraviti prelet IU karakteristike, sledenje točki maksimalne moči in testiranje celic pri negativni napetosti. V delu je prikazana praktična uporaba vseh treh testov na silicijevi celici, perovskitni celici in perovskitnem mini-modulu. Predlagan koncept naprave se je izkazal s svojo uporabnostjo in predstavlja dobra osnovo za razširitev funkcionalnosti na večjo, 24 kanalno, modularno verzijo.In this master’s thesis, an instrument for testing solar cells and mini-modules in different operating points was developed, suitable for outdoor and indoor use. The task of the instrument is to set the desired voltage at the output and measure the current and voltage of the connected cell or mini-module. The instrument can test up to six samples simultaneously. It offers four-quadrant operation in a wide voltage (±12 V) and current (±50 mA) range, which ensures support for a wide range of lab-scale cells and mini-modules. Communication with the instrument is compliant with the SCPI protocol via USB. Thus, the instrument is able to perform a JV sweep, maximum power point tracking, and testing in reverse bias. The functionality of the instrument in performing all three tests is evaluated using silicon cells, perovskite cells, and perovskite mini-modules. The instrument proves to be a valuable tool for evaluating solar cell and mini-module performance and provides a good proof of concept for the development of a larger, 24-channel modular version