An Enhanced Time-Delay-Based Reference Current Identification Method for Single-Phase System
Article
Article Title | An Enhanced Time-Delay-Based Reference Current Identification Method for Single-Phase System |
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Article Category | Article |
Authors | Gautam, Samir, Lu, Yuezhu, Taghizadeh, Seyedfoad, Xiao, Weidong and Lu, Dylan Dah-Chuan |
Journal Title | IEEE Journal of Emerging and Selected Topics in Industrial Electronics |
Journal Citation | 3 (3), pp. 683-693 |
Number of Pages | 11 |
Year | 2022 |
Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
Place of Publication | United States |
ISSN | 2687-9735 |
2687-9743 | |
Digital Object Identifier (DOI) | https://doi.org/10.1109/JESTIE.2021.3102436 |
Web Address (URL) | https://ieeexplore.ieee.org/abstract/document/9508821 |
Abstract | This article proposes an enhanced time-delay-based current component identification method for single-phase systems to overcome the absence of filtering and poor grid frequency response of conventional method. The proposed technique integrates a delayed signal cancellation with a time-delay unit, to incorporate a dc offset rejection feature, while maintaining speedy and precise extraction of orthogonal current components. The frequency adaption is also developed through the incorporation of linear interpolation. The dynamic and steady-state performance of the proposed method is analyzed and compared with two advanced second-order generalized integrator (SOGI) based methods, namely, modified SOGI and cascaded SOGI under different operating scenarios. The simulation and experimental results substantiate the advantage of zero steady-state error and lower settling time of the proposed solution while exhibiting comparable overshoot with advanced SOGI-based methods. |
Keywords | Active power filters; low-pass filters (LPFs); orthogonal signal generation (OSG); reference current generation |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 4008. Electrical engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Sydney |
University of Technology Sydney |
https://research.usq.edu.au/item/zz592/an-enhanced-time-delay-based-reference-current-identification-method-for-single-phase-system
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