Design and Analysis Performance of a High Power Density PFC converter
Authors
Ruiz Arenaza, Estefania ; Boghiu, Maria-Magdalena
Term
4. term
Education
Publication year
2020
Pages
120
Abstract
Efterhånden som det globale elforbrug stiger, bliver effektive strømforsyninger stadig vigtigere. Power factor correction (PFC) forbedrer, hvordan en strømforsyning tager energi fra elnettet, ved at få strøm og spænding til at være i fase (høj effektfaktor) og ved at reducere harmonisk forvrængning, altså et mere jævnt og rent indgangsstrømsforløb. Ved interleaving – to identiske PFC-kanaler, der drives i modfase – opnås yderligere fordele: lavere krusning i indgangsstrømmen, bedre håndtering af høj effekt ved virkningsgrader over 90 %, og hurtigere respons ved lastændringer. Under disse forhold bliver design og optimering af EMI-indgangsfilteret (for at begrænse elektromagnetiske forstyrrelser) afgørende. Dette projekt designer og optimerer en interleaved PFC-boostkonverter baseret på Dual In-Line Intelligent Power Modules (integrerede effektswitch-moduler). Tre ledningstilstande undersøges – kontinuerlig (CCM), diskontinuær (DCM) og kvasi-kontinuerlig (QCM) – for at klarlægge, hvordan driftsmåde påvirker PFC-ydelsen. Målet er at reducere det nødvendige EMI-filter og øge effekttætheden i en 1 kW, enfaset, to-kanals interleaved PFC-boostkonverter.
As global electricity use rises, efficient power supplies become increasingly important. Power factor correction (PFC) improves how a power supply draws energy from the grid by aligning current with voltage (high power factor) and reducing harmonic distortion, resulting in a smoother, cleaner input current. Running PFC stages in an interleaved arrangement—two identical channels operated out of phase—offers further benefits: lower input-current ripple, higher power-handling capability at efficiencies above 90%, and faster response to load changes. Under these conditions, designing and optimizing the electromagnetic interference (EMI) input filter becomes critical. This project designs and optimizes an interleaved PFC boost converter using Dual In-Line Intelligent Power Modules (integrated power-switch modules). It investigates three current-conduction modes—continuous (CCM), discontinuous (DCM), and quasi-continuous (QCM)—to understand how operating mode affects PFC performance. The goal is to shrink the required EMI filter and increase power density in a 1 kW, single-phase, two-channel interleaved PFC boost converter.
[This abstract was generated with the help of AI]
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