Soft-Switching Modulation Method for Full-Bridge DC-AC HF-Link InverterVise andre og tillknytning
2019 (engelsk)Inngår i: 45th annual conference of the ieee industrial electronics society (IECON 2019), IEEE , 2019, s. 4417-4422Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]
This paper presents an improved modulation method for the cycloconverter stage of high frequency-link DC-AC inverters. By applying the quasi-resonant commutation mode during the entire operating period, the fast and reliable discharge of DC-side capacitances can be provided even if the output current is close to zero. This allows to ensure zero voltage switching (ZVS) conditions for the DC-side transistors, while applying small external snubber capacitors to reduce their turn-off losses. The proposed modulation strategy was significantly simplified and requires no external active auxiliary circuits or multi-mode operation. Moreover, two of the AC-side switches can operate at the fundamental frequency, while the rest operate with zero current switching (ZCS). The proposed modulation method is verified with mathematical analysis, simulation model and experimental prototype of full-bridge HF-link inverter.
sted, utgiver, år, opplag, sider
IEEE , 2019. s. 4417-4422
Serie
IEEE Industrial Electronics Society, ISSN 1553-572X
Emneord [en]
Cycloconverter, DC-AC converter, single stage converter, ZCS, ZVS
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-273534DOI: 10.1109/iecon.2019.8927186ISI: 000522050604068Scopus ID: 2-s2.0-85083982816OAI: oai:DiVA.org:kth-273534DiVA, id: diva2:1430838
Konferanse
45th Annual Conference of the IEEE Industrial Electronics Society (IECON), OCT 14-17, 2019, Lisbon, PORTUGAL
Merknad
QC 20200518
Part of ISBN 978-1-7281-4878-6
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