Bibliographic Details
| Title: |
A Delta-Channel Modular Multilevel Converter for Zero/Low-Fundamental-Frequency Operation. |
| Authors: |
Du, Sixing, Wu, Bin, Zargari, Navid R. |
| Source: |
IEEE Transactions on Industrial Electronics. Mar2019, Vol. 66 Issue 3, p2227-2235. 9p. |
| Subjects: |
Multilevel codes, DC-AC converters, Capacitors, Voltage-frequency converters, Electric inductors |
| Abstract: |
This paper proposes a delta-channel modular multilevel converter (MMC). It aims to overcome the issues of the conventional MMC during zero/low fundamental frequency operation. The proposed converter is characterized by the cross connection of both the upper and the lower three arms through two sets of delta-channel branches. These delta-channel branches timely redistribute power among three phase legs, leading to the minimized submodule capacitor voltage fluctuations, even at zero/low fundamental frequency operation. The inner power balancing through physical channels makes the converter inject no common-mode voltage. A 4160-V, 1-MW simulation model is performed in MATLAB/SIMULINK, and a 208-V, 5-kW experimental setup is constructed in the laboratory. Both the simulation and experimental results verify the feasibility of the proposal. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
