Positive Sequence Impedance Angle-based Islanding Detection Technique in the Presence of Active Distribution System

Positive Sequence Impedance Angle-based Islanding Detection Technique in the Presence of Active Distribution System | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Positive Sequence Impedance Angle-based Islanding Detection Technique in the Presence of Active Distribution System Sachin Pachauri, Aseem Chandel This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7114904/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Integrating Distributed Generation (DG) units powered by renewable energy sources into the power grid has significantly enhanced energy sustainability. However, this has also introduced new challenges, notably the issue of unintentional islanding, which occurs when a DG continues to supply power to a local load while disconnected from the main utility grid. Islanding presents serious risks to personnel safety, equipment, and power quality and complicates grid protection systems. Although various islanding detection methods have been proposed, existing solutions often struggle with false detections, slow response times, or limited applicability to multiple DG configurations. This article presents a novel scheme for detecting islanding events based on the rate of change of the superimposed positive sequence impedance angle (ROCOSPSIA). To test the performance of the proposed method under various islanding conditions (active and reactive power mismatch) and non-islanding events, such as load switching (ON/OFF), energization/de-energization of medium transmission lines, a short circuit on a nearby feeder, and a capacitor bank on the IEEE 13 bus system. The distribution test system has been simulated in the MATLAB/Simulink environment. The simulation results show that the proposed scheme distinguishes islanding events from non-islanding events within a half-cycle. Physical sciences/Energy science and technology Physical sciences/Engineering Distribution Generation Microgrid Islanding Detection Positive Sequence Impedance Angle Multi-bus System Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7114904","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":490009222,"identity":"0c11c3a9-3398-4da3-8325-2b88f0a03325","order_by":0,"name":"Sachin Pachauri","email":"","orcid":"","institution":"Rajkiya Engineering College Mainpuri , UP, India","correspondingAuthor":false,"prefix":"","firstName":"Sachin","middleName":"","lastName":"Pachauri","suffix":""},{"id":490009224,"identity":"045a2cfa-9ce0-49e1-9a52-4d4d5bc11e0d","order_by":1,"name":"Aseem Chandel","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA8UlEQVRIiWNgGAWjYPCCA0CcwHjgA5BiYydBC8PBGSAtzKRoOcwDYhPSwt9/+OCjGzV35M3Zkw8ctvm1TZ6PmYHxw8cc3FokbqQlG+cce2a4s+dZwuHcvtuGbcwMzJIzt+Gx5gaPmXRuw2HGDTdyDA7n9txmBGphY+bFo0X+/Pnvv4Fa7DfcyP9w2LLntj1BLQYHctiYgVoSgbYwHGb4cTuRoBbDG2nG0jnHDidvOPPM4GBvw+3kNmbGZrx+kTt/+OHnnJrDthuOJz988OPPbdv57c0HP3zE530UwNgGJhuIVQ8Cf0hRPApGwSgYBSMFAABta10bPxNJWwAAAABJRU5ErkJggg==","orcid":"","institution":"Rajkiya Engineering College Mainpuri , UP, India","correspondingAuthor":true,"prefix":"","firstName":"Aseem","middleName":"","lastName":"Chandel","suffix":""}],"badges":[],"createdAt":"2025-07-13 18:08:13","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7114904/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7114904/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":89635855,"identity":"84823029-c5ec-4ae2-96e9-9934492785a9","added_by":"auto","created_at":"2025-08-22 07:17:19","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1579757,"visible":true,"origin":"","legend":"","description":"","filename":"SA1PaperNew.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7114904/v1_covered_2ee491c9-652f-4ff3-850e-1663d036944b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Positive Sequence Impedance Angle-based Islanding Detection Technique in the Presence of Active Distribution System","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Distribution Generation, Microgrid, Islanding Detection, Positive Sequence Impedance Angle, Multi-bus System","lastPublishedDoi":"10.21203/rs.3.rs-7114904/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7114904/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIntegrating Distributed Generation (DG) units powered by renewable energy sources into the power grid has significantly enhanced energy sustainability. 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