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Robust Delay-Dependent Load Frequency Control of Wind Power System Based on a Novel Reconstructed Model | IEEE Journals & Magazine | IEEE Xplore

Robust Delay-Dependent Load Frequency Control of Wind Power System Based on a Novel Reconstructed Model


Abstract:

This article presents a novel reconstructed model for the delayed load frequency control (LFC) schemes considering wind power, which aims to improve the computational eff...Show More

Abstract:

This article presents a novel reconstructed model for the delayed load frequency control (LFC) schemes considering wind power, which aims to improve the computational efficiency for PID controllers while retaining their dynamic performance. Via fully exploiting system states influenced by time delays directly, this novel reconstructed method is proposed with a controller isolated. Hence, when the PID controllers are unknown, the stability criterion based on this model can resolve controller gains with less time consumed. For given PID gains, this model can be employed to establish criteria for stability analysis, which can realize the tradeoff between the calculation accuracy and efficiency. The case study is first based on a two-area traditional LFC system to validate the merits of a novel reconstructed model, including accurately estimating the influence of time delay on system frequency stability with increased computational capability. Then, under traditional and deregulated environments, case studies are carried out on the two-area and three-area schemes, respectively. Through the novel reconstructed model, the efficiency of obtaining controller parameters is highly improved while their robustness against the random wind power, tie-line power changes, inertial reductions, and time delays remains almost unchanged.
Published in: IEEE Transactions on Cybernetics ( Volume: 52, Issue: 8, August 2022)
Page(s): 7825 - 7836
Date of Publication: 10 February 2021

ISSN Information:

PubMed ID: 33566787

Funding Agency:


References

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