Memory-Based Set Point Modulation for Improved Transient Response of Distributed Energy Resources

Fuente: arXiv
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Auteurs principaux: Beikbabaei, Milad, Alexander, Brady, Venkataramanan, Ashwin, Mehrizi-Sani, Ali
Format: Preprint
Publié: 2024
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author Beikbabaei, Milad
Alexander, Brady
Venkataramanan, Ashwin
Mehrizi-Sani, Ali
author_facet Beikbabaei, Milad
Alexander, Brady
Venkataramanan, Ashwin
Mehrizi-Sani, Ali
contents As the composition of the power grid evolves to integrate more renewable generation, its reliance on distributed energy resources (DER) is increasing. Existing DERs are often controlled with proportional integral (PI) controllers that, if not properly tuned or if system parameters change, exhibit sluggish performance or large overshoot. The use of set point automatic adjustment with correction-enabled (SPAACE) with a linear predictor improves the transient response of these DERs without the need to access the PI controller parameters. The limitation of the existing SPAACE method is the high sampling rate needed for improved performance, which is not always practical. This paper proposes the addition of a memory term to the SPAACE with a linear predictor. This memory term is the integral of the errors of previous samples, which adds another layer to the prediction to improve the response at lower sampling rates and further reduces the overshoot and settling time compared to the existing SPAACE method. Time-domain simulation studies are performed in PSCAD/EMTDC to show the effectiveness of the proposed controller.
format Preprint
id arxiv_https___arxiv_org_abs_2405_07108
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Memory-Based Set Point Modulation for Improved Transient Response of Distributed Energy Resources
Beikbabaei, Milad
Alexander, Brady
Venkataramanan, Ashwin
Mehrizi-Sani, Ali
Systems and Control
As the composition of the power grid evolves to integrate more renewable generation, its reliance on distributed energy resources (DER) is increasing. Existing DERs are often controlled with proportional integral (PI) controllers that, if not properly tuned or if system parameters change, exhibit sluggish performance or large overshoot. The use of set point automatic adjustment with correction-enabled (SPAACE) with a linear predictor improves the transient response of these DERs without the need to access the PI controller parameters. The limitation of the existing SPAACE method is the high sampling rate needed for improved performance, which is not always practical. This paper proposes the addition of a memory term to the SPAACE with a linear predictor. This memory term is the integral of the errors of previous samples, which adds another layer to the prediction to improve the response at lower sampling rates and further reduces the overshoot and settling time compared to the existing SPAACE method. Time-domain simulation studies are performed in PSCAD/EMTDC to show the effectiveness of the proposed controller.
title Memory-Based Set Point Modulation for Improved Transient Response of Distributed Energy Resources
topic Systems and Control
url https://arxiv.org/abs/2405.07108