20.500.12556/DKUM-91623 Opazovalnik temperature spoja močnostnega modula magistrsko delo Power module junction temperature observer Namen magistrskega dela je zagotoviti bolj natančno oceno temperature spoja MOSFET-tranzistorja v primerjavi z obstoječim pristopom, kar bo omogočilo izboljšanje zmogljivosti motorskega krmilnika. Ta temperatura predstavlja ključno, vendar nedostopno stanje, ki ga ni mogoče neposredno izmeriti. Zato smo razvili predikcijski algoritem, imenovan opazovalnik, ki na podlagi meritev vhodov oziroma faznega toka in temperature na dostopni točki sistema ocenjuje temperaturo spoja MOSFET-tranzistorja. V ta namen smo načrtali termalni model krmilnika, predstavljen kot ekvivalentno električno vezje, in ga nato validirali z uporabo termalnih simulacij v časovni domeni in meritvami. The aim of the master’s thesis is to provide a more accurate estimate of the junction temperature of the MOSFET transistor compared to the existing approach, which will allow to improve the performance of the motor controller. This temperature represents a crucial but inaccessible state that cannot be directly measured. Therefore, we developed a prediction algorithm called the observer, which estimates the junction temperature of the MOSFET transistor based on the measurements of the inputs, the phase current and the temperature at the available point of the system. For this purpose, we designed a thermal model of the controller, represented as an equivalent electrical circuit, and then validated it using transient thermal simulations and measurements. predikcijski algoritem MOSFET termalni model motorni krmilnik prostor stanj predictive algorithm MOSFET thermal model motor controller state-space true true false [R. Pantić] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-01-21 09:55:23 2025-03-27 12:48:37 2025-04-05 03:07:29 0000-00-00 00:00:00 2025 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (X, 61 str.)) 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.317(043.2) 231397123 MAG_Pantic_Radoslav_2025.pdf MAG_Pantic_Radoslav_2025.pdf 1 B773FA90AAE2F142766C3CE40B1AE874 3f464e46af205c1e663f8c2c319345a51488cfbc698d8992437b097dbcf12f5f 184f43ca-064c-11f0-90ca-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=189558 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0