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Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Comparative Analysis of Active Capacitor Voltage Balancing Method for Flying Capacitor Multilevel Converters
AU - Ebrahimi, Javad
AU - Eren, Suzan
AU - Bakhshai, Alireza
AU - Nasr Esfahani, Fatemeh
AU - Wang, Laili
PY - 2025/4/22
Y1 - 2025/4/22
N2 - This paper presents a comparative analysis of an active capacitor voltage balancing method for Flying Capacitor Multilevel (FCM) converters, focusing on the effectiveness of various strategies in maintaining optimal capacitor voltages. We examine both natural balancing methods and active control methods, evaluating their performance under a variety of operational scenarios. An active balancing method based on an Overall Priority Index (OPI) is utilized, which optimizes the selection of switching states to minimize voltage deviations from nominal values. An analysis of the proposed method is conducted using simulations on a five-level FCM and a six-level converter, to compare its performance with that of existing methods. OPI-based methods reduce capacitor voltage ripple, as demonstrated in the results. Various experimental results are presented to demonstrate the stability of the proposed method under various conditions of load and modulation index.
AB - This paper presents a comparative analysis of an active capacitor voltage balancing method for Flying Capacitor Multilevel (FCM) converters, focusing on the effectiveness of various strategies in maintaining optimal capacitor voltages. We examine both natural balancing methods and active control methods, evaluating their performance under a variety of operational scenarios. An active balancing method based on an Overall Priority Index (OPI) is utilized, which optimizes the selection of switching states to minimize voltage deviations from nominal values. An analysis of the proposed method is conducted using simulations on a five-level FCM and a six-level converter, to compare its performance with that of existing methods. OPI-based methods reduce capacitor voltage ripple, as demonstrated in the results. Various experimental results are presented to demonstrate the stability of the proposed method under various conditions of load and modulation index.
U2 - 10.1109/ICIT63637.2025.10965220
DO - 10.1109/ICIT63637.2025.10965220
M3 - Conference contribution/Paper
SN - 9798331521967
SP - 1
EP - 6
BT - 2025 IEEE International Conference on Industrial Technology (ICIT)
PB - IEEE
T2 - 2025 IEEE International Conference on Industrial Technology (ICIT)
Y2 - 26 March 2025 through 28 March 2025
ER -