Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/146188
Title: Practical submodule capacitor sizing for modular multilevel converter considering grid faults
Authors: Yin, Zhijian
Qiu, Huan
Yang, Yongheng
Tang, Yi
Wang, Huai
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2020
Source: Yin, Z., Qiu, H., Yang, Y., Tang, Y., & Wang, H. Practical submodule capacitor sizing for modular multilevel converter considering grid faults. Applied Sciences, 10(10), 3550-. doi:10.3390/app10103550
Journal: Applied Sciences
Abstract: Submodule (SM) capacitors are key elements in the modular multilevel converter (MMC), the design of which influences the entire system performance. In practical cases, SM capacitor sizing must consider the abnormal system operation (e.g., grid faults). In order to find a clear design boundary for SM capacitors, a practical capacitor sizing method is presented for the first time in this paper, considering the grid-fault-ride-through operation of the MMC, impact of MMC control system, and aging mechanism of capacitors. The SM capacitor rated voltage, capacitance, ESR, thermal resistance, and lifetime can be decided to ensure reliable operations of the MMC during grid faults. The effectiveness of the proposed method has been verified through experimental tests on a down-scale MMC system.
URI: https://hdl.handle.net/10356/146188
ISSN: 2076-3417
DOI: 10.3390/app10103550
Rights: © 2020 The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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