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Stability analysis and performance improvement of power sharing control in Islanded microgrids
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Sun, Li, Zhao, Xiaowei and Lv, Yongfeng (2022) Stability analysis and performance improvement of power sharing control in Islanded microgrids. IEEE Transactions on Smart Grid, 13 (6). pp. 4665-4676. doi:10.1109/TSG.2022.3178593 ISSN 1949-3053.
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WRAP-stability-analysis-performance-improvement-power-sharing-control-Islanded-microgrids-Zhao-2022.pdf - Accepted Version - Requires a PDF viewer. Download (5Mb) | Preview |
Official URL: https://doi.org/10.1109/TSG.2022.3178593
Abstract
Due to the requirement of synchronism and power sharing, droop control and its variations have become one essential component for distributed generator (DG)-powered microgrids. However, the power sharing accuracy and system stability margin may be threatened by the randomness from the load demand and renewable generation. In this paper, a dynamic stability analysis is first performed on a DG-powered microgrid through a produced system frequency response model (SFR). The results point out that (i) the critical system eigenvalues directly vary with the system operating condition; (ii) a fixedgain power sharing control is prone to be less damped and loses stability easily under some operating conditions. Then, the heuristic adaptive dynamic programming (HDP) strategy is used for power sharing control with the benefit of adapting to realtime disturbances and uncertainties. Through Lyapunov theorem, stability analysis is provided to demonstrate the reliability of the HDP-based power sharing control in islanded microgrids. Finally, simulation tests verify the analysis results and demonstrate the favorable performance of the HDP-based power sharing control under uncertain load disturbances.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Microgrids (Smart power grids) , Power electronics, Electric power systems -- Control, Electric power system stability | ||||||||
Journal or Publication Title: | IEEE Transactions on Smart Grid | ||||||||
Publisher: | IEEE | ||||||||
ISSN: | 1949-3053 | ||||||||
Official Date: | November 2022 | ||||||||
Dates: |
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Volume: | 13 | ||||||||
Number: | 6 | ||||||||
Page Range: | pp. 4665-4676 | ||||||||
DOI: | 10.1109/TSG.2022.3178593 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Reuse Statement (publisher, data, author rights): | © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 26 May 2022 | ||||||||
Date of first compliant Open Access: | 26 May 2022 | ||||||||
RIOXX Funder/Project Grant: |
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