Rezaei Jegarluei, M orcid.org/0000-0002-6770-7161, Aristidou, P orcid.org/0000-0003-4429-0225, Fernandes, W et al. (1 more author) (2023) Wide-Area Backup Protection Using Sparse Synchronized/Unsynchronized PMU Measurements. IEEE Transactions on Power Delivery, 38 (4). pp. 2630-2640. ISSN 0885-8977
Abstract
This paper proposes a wide-area backup protection (WABP) method for transmission systems using sparse synchronized/unsynchronized PMU measurements. The method is aimed at addressing practical challenges such as temporary loss of the time-synchronization signal (LTSS), sparse PMU coverage, and communication failures and latencies. A linear and computationally efficient formulation is proposed to identify the faulted line in near real-time based on the superimposed-circuit concept. An index is proposed that quantifies the mismatch degrees between the expected and observed superimposed phasors without requiring full network observability. The method can work well with unsynchronized measurements without imposing a significant computational burden. This is achieved by canceling out the effect of angle drifts caused by LTSS from the equations. Since no matrix inversion is involved, sparse PMU measurements do not result in singularity, and thus, the unsolvability of the equations. A technique is proposed to assess the feasibility of faulted-line identification by a given set of PMUs. Being robust against measurement and parameter errors, the method performs well with PMUs of different reporting rates regardless of the fault distance, type, and resistance. More than 200,000 simulations conducted on the IEEE 39-bus test system verify the effectiveness of the proposed WABP method.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 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. |
Keywords: | Wide-area backup protection (WABP); phasor measurement unit (PMU); unsynchronized measurements; communication latencies |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 15 Mar 2023 14:54 |
Last Modified: | 24 May 2024 01:33 |
Status: | Published |
Publisher: | Institute of Electrical and Electronics Engineers |
Identification Number: | 10.1109/tpwrd.2023.3249822 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:197023 |