LVRT Strategy Considering Reactive Power Support and Fluctuating Power Suppression for Photovoltaic Application

LVRT Strategy Considering Reactive Power Support and Fluctuating Power Suppression for Photovoltaic Application | 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 Research Article LVRT Strategy Considering Reactive Power Support and Fluctuating Power Suppression for Photovoltaic Application Zhichao Zhang, Qihang Qihang Liu, Chuyuan Wang, Yujiex Yujie Zong This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6436751/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 Addressing the insufficient negative sequence dynamic reactive current support and power doubling oscillations present in conventional low-voltage ride through control mechanisms for photovoltaic inverters, this study designs a q-axis command for both positive and negative sequence currents in accordance with recent regulatory requirements for photovoltaic grid integration technologies. The d-axis commands for positive and negative sequence currents are computed to effectively attenuate second harmonic fluctuations in active power output. The proposed approach establishes equilibrium between inverter current carrying capacity and oscillation mitigation, thereby concurrently enhancing dynamic reactive current support for both sequence components while diminishing power doubling fluctuations. The short-circuit current characteristics of photovoltaic installations are examined utilizing this enhanced low-voltage ride through control methodology. Comparative analysis between the suggested approach and current low-voltage ride through control techniques was conducted via simulation models, confirming both the efficiency of the proposed method and the accuracy of analytical expressions for short-circuit current. photovoltaic LVRT reactive power support fluctuating power suppression efficiency 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-6436751","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":458918680,"identity":"0de15358-c690-43a1-9940-ad638f097673","order_by":0,"name":"Zhichao Zhang","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzklEQVRIiWNgGAWjYFACxgcQmr2x8eEH4rQwG0BonsPNxhKkaZFIbxPgIUYD/+xmxscFvxjk+CUftjFIMNjJ6TYQ0CJx5zCz8cw+BmPJ2YltDwoYko3NDhCy5kb+MWneHobEDbcT2w0kGA4kbiOkRf5GMvtvoJb6/TcPtknwEKPF4EYyGzPPD4YEAwlGIrUY3khmluZtYDCccSYRGMgGRPhF7kYy42eePwzy/O3HHz78UGEnR9j7IMDY9h/mTmKUg8EfolWOglEwCkbBSAQAqaE/Yaku5CcAAAAASUVORK5CYII=","orcid":"","institution":"University of Birmingham","correspondingAuthor":true,"prefix":"","firstName":"Zhichao","middleName":"","lastName":"Zhang","suffix":""},{"id":458918681,"identity":"3b93b2da-40b4-4cd8-91aa-751c86b3e8cc","order_by":1,"name":"Qihang Qihang Liu","email":"","orcid":"","institution":"University of Birmingham","correspondingAuthor":false,"prefix":"","firstName":"Qihang","middleName":"Qihang","lastName":"Liu","suffix":""},{"id":458918682,"identity":"d94b1bae-ac29-4b24-a336-3a2992302925","order_by":2,"name":"Chuyuan Wang","email":"","orcid":"","institution":"University of Birmingham","correspondingAuthor":false,"prefix":"","firstName":"Chuyuan","middleName":"","lastName":"Wang","suffix":""},{"id":458918683,"identity":"d55136fa-ec89-4077-8e3e-236434ce060f","order_by":3,"name":"Yujiex Yujie Zong","email":"","orcid":"","institution":"University of Birmingham","correspondingAuthor":false,"prefix":"","firstName":"Yujiex","middleName":"Yujie","lastName":"Zong","suffix":""}],"badges":[],"createdAt":"2025-04-13 01:08:06","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-6436751/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-6436751/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":89306401,"identity":"30f56e78-4246-4bd2-8f20-812a6c0fb650","added_by":"auto","created_at":"2025-08-18 15:17:11","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":687269,"visible":true,"origin":"","legend":"","description":"","filename":"ElectricalEngineering.pdf","url":"https://assets-eu.researchsquare.com/files/rs-6436751/v1_covered_69eb2983-7f48-49d1-982b-d070fd50cb32.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"LVRT Strategy Considering Reactive Power Support and Fluctuating Power Suppression for Photovoltaic Application","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"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":"photovoltaic, LVRT, reactive power support, fluctuating power suppression, efficiency","lastPublishedDoi":"10.21203/rs.3.rs-6436751/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-6436751/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAddressing the insufficient negative sequence dynamic reactive current support and power doubling oscillations present in conventional low-voltage ride through control mechanisms for photovoltaic inverters, this study designs a q-axis command for both positive and negative sequence currents in accordance with recent regulatory requirements for photovoltaic grid integration technologies. 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