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A Novel Distributed Control Method for Interlinking Converters in an Islanded Hybrid AC/DC Microgrid
Cited 16 time in
Web of Science
Cited 20 time in Scopus
- Authors
- Issue Date
- 2021-09
- Citation
- IEEE Transactions on Smart Grid, Vol.12 No.5, pp.3765-3779
- Abstract
- In this paper, a novel distributed active power control method for interlinking converters (ICs) in an islanded hybrid ac/dc microgrid (IHMG) is proposed. The goal is to implement power sharing among all distributed generators (DGs) in an IHMG and among the ICs in a distributed manner, without the need for additional proportional-integral controllers. A mathematical formula for the active power references of the ICs is derived to achieve these objectives. Then, an estimator providing the data required for the reference calculation is proposed based on the modified dynamic consensus algorithm. In addition, a unified state-space model is derived for the entire IHMG, including the cyber-physical interactions, and a design method is presented for the parameters of the estimator. Finally, the effectiveness of the proposed method is verified by performing small-signal analysis and controller-hardware-in-the-loop verification. Compared to a previous distributed control method, the proposed method significantly improves the robustness in terms of communication delay and variation in the status of DGs while achieving the objectives.
- ISSN
- 1949-3053
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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