TY - GEN
T1 - Disturbances Observer-Based Fixed-Time Sliding Mode Control for Three-Level NPC Converters in Microgrid
AU - Liu, Guangxin
AU - Shen, Xiaoning
AU - Zhang, Jianhua
AU - Gao, Yabin
AU - Liu, Jianxing
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper introduces a fixed-time sliding mode control (FTSMC) scheme that utilizes a fixed-time disturbance observer (FTDOB) for three-level neutral-point-clamped (3L-NPC) converters. Therein, a FTSMC with adaptive exponential coefficient is developed to regulate the dc-link voltage. Compared with existing methods, the proposed approach features a settling time upper bound that is independent of the initial error, which ensures the dynamic performance of the 3L-NPC converters. Furthermore, a FTDOB is employed to estimate external disturbances and act as feedforward compensation of the 3L-NPC converters to enhance its disturbances rejection ability. Finally, a series of simulation results illustrate the advantages of the proposed scheme by compared with several representative methods used in 3L-NPC converters.
AB - This paper introduces a fixed-time sliding mode control (FTSMC) scheme that utilizes a fixed-time disturbance observer (FTDOB) for three-level neutral-point-clamped (3L-NPC) converters. Therein, a FTSMC with adaptive exponential coefficient is developed to regulate the dc-link voltage. Compared with existing methods, the proposed approach features a settling time upper bound that is independent of the initial error, which ensures the dynamic performance of the 3L-NPC converters. Furthermore, a FTDOB is employed to estimate external disturbances and act as feedforward compensation of the 3L-NPC converters to enhance its disturbances rejection ability. Finally, a series of simulation results illustrate the advantages of the proposed scheme by compared with several representative methods used in 3L-NPC converters.
KW - Fixed-time sliding mode control
KW - disturbances observer
KW - neutral-point-clamped converters
UR - https://www.scopus.com/pages/publications/85215513144
U2 - 10.1109/INDIN58382.2024.10774239
DO - 10.1109/INDIN58382.2024.10774239
M3 - 会议稿件
AN - SCOPUS:85215513144
T3 - IEEE International Conference on Industrial Informatics (INDIN)
BT - Proceedings - 2024 IEEE 22nd International Conference on Industrial Informatics, INDIN 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd IEEE International Conference on Industrial Informatics, INDIN 2024
Y2 - 18 August 2024 through 20 August 2024
ER -