Control and Admittance Modeling of an AC/AC Modular Multilevel Converter for Railway SuppliesVise andre og tillknytning
2020 (engelsk)Inngår i: IEEE transactions on power electronics, ISSN 0885-8993, E-ISSN 1941-0107, Vol. 35, nr 3, s. 2411-2423Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]
Modular multilevel converters (MMCs) can be configured to perform ac/ac conversion, which makes them suitable as railway power supplies. In this paper, a hierarchical control scheme for ac/ac MMCs for railway power supplies is devised and evaluated, considering the requirements and the operating conditions specific to this application. Furthermore, admittance models of the ac/ac MMC are developed, showing how the suggested hierarchical control scheme affects the three-phase and the single-phase side admittances of the converter. These models allow for analyzing the stability of the interconnected system using the impedance-based stability criterion and the passivity-based stability assessment. Finally, the findings presented in this paper are validated experimentally, using a down-scaled MMC.
sted, utgiver, år, opplag, sider
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2020. Vol. 35, nr 3, s. 2411-2423
Emneord [en]
Rail transportation, Power supplies, Stability criteria, Admittance, Voltage control, Capacitors, AC, AC converters, current control, frequency-domain analysis, linearization techniques, modular multilevel converters (MMCs), railway engineering, stability
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-267142DOI: 10.1109/TPEL.2019.2930321ISI: 000507286000019Scopus ID: 2-s2.0-85077193974OAI: oai:DiVA.org:kth-267142DiVA, id: diva2:1393471
Merknad
Not a duplicate with DiVA 1302284
QC 20200217
2020-02-172020-02-172022-06-26bibliografisk kontrollert