H∞ Loop shaping based on internal model current control structure for single-phase PWM rectifier

H ∞ loop shaping in this study is used based on the internal model control (IMC) structure for single-phase pulse width modulation (PWM) rectifier current control under current sensor gain faults. The dynamic performance of this controller is investigated. H ∞ loop shaping balances between dynamic p...

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Bibliographic Details
Published in:Electrical engineering 2024, Vol.106 (3), p.3217-3230
Main Authors: Ibrahim, Motaz Musa, Ma, Lei, Zhao, Yiming, Cheng, Shaokun, Bo, Tianci, Liu, Haoran
Format: Article
Language:English
Subjects:
Controllers
Economics and Management
Electrical Engineering
Electrical Machines and Networks
Energy Policy
Engineering
H-infinity control
Original Paper
Performance degradation
Power Electronics
Pulse duration modulation
Rectifiers
Robust stabilization
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Summary:H ∞ loop shaping in this study is used based on the internal model control (IMC) structure for single-phase pulse width modulation (PWM) rectifier current control under current sensor gain faults. The dynamic performance of this controller is investigated. H ∞ loop shaping balances between dynamic performance and robustness. However, the dynamic performance will be degraded to attain robustness under large parametric uncertainties or sensor faults. Therefore, this controller is used in IMC structure to reduce its conservatism in these cases. The robustness of the equivalent IMC controller and H ∞ loop shaping controller is measured in the context of gap metric. The robust stabilization and dynamic performance of both controllers are analyzed. The hardware-in-the loop experimental results show that the proposed IMC structure exhibits better dynamic performance and maintains robustness in all cases.
ISSN:0948-7921
1432-0487
DOI:10.1007/s00202-023-02069-x