FAULT DETECTION AND DIAGNOSIS IN PHOTOVOLTAIC POWER SYSTEMS USING FISHER RANDOM MATRIX APPROACH. REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE, [S. l.], v. 70, n. 4, p. 513–518, 2025. DOI: 10.59277/RRST-EE.2025.4.14. Disponível em: https://journal.iem.pub.ro/rrst-ee/article/view/1364.. Acesso em: 23 nov. 2025.