TY - JOUR
T1 - Mission Profile-Based System-Level Reliability Prediction Method for Modular Multilevel Converters
AU - Zhang, Yi
AU - Wang, Huai
AU - Wang, Zhongxu
AU - Blaabjerg, Frede
AU - Saeedifard, Maryam
N1 - Funding Information:
Manuscript received August 5, 2019; revised October 29, 2019; accepted November 27, 2019. Date of publication December 3, 2019; date of current version March 13, 2020. This work was supported by the Innovation Fund Denmark through the Advanced Power Electronic Technology and Tools project. Recommended for publication by Associate Editor M. Nawaz. (Corresponding author: Yi Zhang.) Y. Zhang, H. Wang, Z. Wang, and F. Blaabjerg are with the Department of Energy Technology, Aalborg University, 9100 Aalborg, Denmark (e-mail: [email protected]; [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 1986-2012 IEEE.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - This article proposes a mission profile-based reliability prediction method for modular multilevel converters (MMCs). It includes key modeling steps, such as long-term mission profile, analytical power loss models, system-level and component-level thermal modeling, lifetime modeling, Monte Carlo analysis, and redundancy analysis. Thermal couplings and uneven thermal stresses among submodules are considered. A case study of a 15-kVA down-scale MMC has been used to demonstrate the proposed method and validate the theoretical analysis. The outcomes serve as a first step for developing realistic reliability analysis and model-based design methods for full-scale MMCs in practical applications.
AB - This article proposes a mission profile-based reliability prediction method for modular multilevel converters (MMCs). It includes key modeling steps, such as long-term mission profile, analytical power loss models, system-level and component-level thermal modeling, lifetime modeling, Monte Carlo analysis, and redundancy analysis. Thermal couplings and uneven thermal stresses among submodules are considered. A case study of a 15-kVA down-scale MMC has been used to demonstrate the proposed method and validate the theoretical analysis. The outcomes serve as a first step for developing realistic reliability analysis and model-based design methods for full-scale MMCs in practical applications.
KW - Modular multilevel converters (MMCs)
KW - power losses
KW - redundancy
KW - reliability
KW - thermal analysis
UR - http://www.scopus.com/inward/record.url?scp=85082300198&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2019.2957826
DO - 10.1109/TPEL.2019.2957826
M3 - Article
AN - SCOPUS:85082300198
SN - 0885-8993
VL - 35
SP - 6916
EP - 6930
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 7
M1 - 8926422
ER -