TY - JOUR
T1 - Model-Based Design for Reactors of the Modular Multilevel Converter
AU - Zhang, Yi
AU - Xu, Yi
AU - Saeedifard, Maryam
N1 - Funding Information:
This work was supported by Independent Research Fund Denmark under Grant 1031-00024B.
Publisher Copyright:
© 1986-2012 IEEE.
PY - 2023/6/1
Y1 - 2023/6/1
N2 - For complex power electronic converters, typical design approaches divide the system into multiple independent subsystems without sufficiently considering the interactions among them. In this article, a model-based approach for sizing the reactors of the modular multilevel converter (MMC) is proposed. The proposed method quantitatively considers the interactions between the reactor sizing and other design parameters, such as power ratings, protection schemes, and component-level short-circuit capabilities. Meanwhile, three deterministic factors are provided in this article for sizing reactors to ensure enough robustness during extreme situations instead of the heuristic factor in the existing work. The quantified interactions presented in this article also reveal that a proper overrating of the active components is able to reduce reactance, increase efficiency, and improve power density. The proposed method not only serves as a quantitative design tool for the MMC, but also emphasizes the significance of the modeling of the interactions in the model-based design. Finally, the effectiveness of the proposed method is validated by simulations and experiments. This article is also accompanied by software codes for reproducibility.
AB - For complex power electronic converters, typical design approaches divide the system into multiple independent subsystems without sufficiently considering the interactions among them. In this article, a model-based approach for sizing the reactors of the modular multilevel converter (MMC) is proposed. The proposed method quantitatively considers the interactions between the reactor sizing and other design parameters, such as power ratings, protection schemes, and component-level short-circuit capabilities. Meanwhile, three deterministic factors are provided in this article for sizing reactors to ensure enough robustness during extreme situations instead of the heuristic factor in the existing work. The quantified interactions presented in this article also reveal that a proper overrating of the active components is able to reduce reactance, increase efficiency, and improve power density. The proposed method not only serves as a quantitative design tool for the MMC, but also emphasizes the significance of the modeling of the interactions in the model-based design. Finally, the effectiveness of the proposed method is validated by simulations and experiments. This article is also accompanied by software codes for reproducibility.
KW - Limiting reactor
KW - model-based design
KW - modular multilevel converter (MMC)
KW - short circuit
KW - sizing criteria
UR - http://www.scopus.com/inward/record.url?scp=85151320895&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2023.3257087
DO - 10.1109/TPEL.2023.3257087
M3 - Journal article
AN - SCOPUS:85151320895
SN - 0885-8993
VL - 38
SP - 6863
EP - 6873
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 6
ER -