NDLI: An investigation of voltage balancing circuit for DC capacitors in diode-clamped multilevel inverters to realize high output power density converters

Content Provider	IEEE Xplore Digital Library
Author	Ito, T. Kamaga, M. Sato, Y. Ohashi, H.
Copyright Year	2010
Description	Author affiliation: National Institute of Advanced, Industrial Science and Technology , 1-1-1 Umezono, Tsukuba, 305-8568, Japan (Ohashi, H.) \|\| Chiba University, 1-33 Yayoi-cho, Inage-ku, 263-8522, Japan (Ito, T.; Kamaga, M.; Sato, Y.)
Abstract	Output power density of power converters has been increasing. At the same time, the power converters with lower harmonics and lower electromagnetic interference are required in many applications. To satisfy these requirements, the volume of filters and heat sinks should be reduced. As a solution to realize higher output power density and lower harmonics, diode-clamped multilevel inverters are investigated. In this case, the voltage balancing circuit must be connected to the DC capacitors because the DC voltages tend to unbalance when the number of the output level exceeds three. Therefore, the total volume of the converters including the voltage balancing circuit should be investigated. In this paper, resonant switched capacitor converter is treated as a promising solution to realize the voltage balancing circuit with smaller volume. The operating characteristics and estimated volume are clarified analytically. Finally, the applicability of the voltage balancing circuit is confirmed by the experimental results.
Starting Page	3675
Ending Page	3682
File Size	707455
Page Count	8
File Format	PDF
ISBN	9781424452866
DOI	10.1109/ECCE.2010.5618342
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power converter Capacitors RLC circuits Switches Output power density Converters Diode-clamped multilevel inverter Inverters Resonant switched capacitor converter Power harmonic filters Power generation Voltage balancing circuit
Content Type	Text
Resource Type	Article

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