TY - JOUR
T1 - EMI Filter Robustness in Three-Level Active Neutral-Point-Clamped Inverter
AU - Shen, Zhan
AU - Chen, Mengxing
AU - Wang, Huai
AU - Wang, Xiongfei
AU - Blaabjerg, Frede
N1 - Publisher Copyright:
IEEE
PY - 2022/4
Y1 - 2022/4
N2 - The electromagnetic interference (EMI) filter is a critical component for power electronics to conform with the EMI standards, ensuring electromagnetic compatibility and a safe operating environment. Yet, its attenuation capability can shift during the long-term operating period due to the passive components’ degradation. A poorly designed EMI filter may fail to meet the standards’ specifications and affect the robustness, leading to the converter level fault and even failure. This article proposes a robustness assessment procedure of an EMI filter for a three-level active neutral-point-clamped (3L-ANPC) inverter. The mission profile is used to emulate the operating environment. The nonlinear degradations of film capacitors and nanocrystalline core chokes are modeled. Furthermore, the Monte-Carlo-based robustness assessment procedure is presented. It considers the uncertainties of model parameters and uses the filter attenuation capability as the failure criteria. Finally, an EMI filter for a 15-kW 3L-ANPC inverter is used as the demonstration and experimental verification of the evaluation procedure. The B10 lifetime of the EMI filter is obtained, which serves as a first step of the inverter-system-level EMI robustness evaluation and feedback for the robustness-oriented EMI filter design.
AB - The electromagnetic interference (EMI) filter is a critical component for power electronics to conform with the EMI standards, ensuring electromagnetic compatibility and a safe operating environment. Yet, its attenuation capability can shift during the long-term operating period due to the passive components’ degradation. A poorly designed EMI filter may fail to meet the standards’ specifications and affect the robustness, leading to the converter level fault and even failure. This article proposes a robustness assessment procedure of an EMI filter for a three-level active neutral-point-clamped (3L-ANPC) inverter. The mission profile is used to emulate the operating environment. The nonlinear degradations of film capacitors and nanocrystalline core chokes are modeled. Furthermore, the Monte-Carlo-based robustness assessment procedure is presented. It considers the uncertainties of model parameters and uses the filter attenuation capability as the failure criteria. Finally, an EMI filter for a 15-kW 3L-ANPC inverter is used as the demonstration and experimental verification of the evaluation procedure. The B10 lifetime of the EMI filter is obtained, which serves as a first step of the inverter-system-level EMI robustness evaluation and feedback for the robustness-oriented EMI filter design.
KW - common mode (CM) choke
KW - Electromagnetic interference (EMI) filter
KW - power loss
KW - reliability
KW - three-level active neutral-pointclamped (3L-ANPC) inverter
UR - http://www.scopus.com/inward/record.url?scp=85118612716&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2021.3124282
DO - 10.1109/TPEL.2021.3124282
M3 - Journal article
AN - SCOPUS:85118612716
SN - 1941-0107
VL - 37
SP - 4641
EP - 4657
JO - I E E E Transactions on Power Electronics
JF - I E E E Transactions on Power Electronics
IS - 4
M1 - 9599568
ER -