Fault ride through coordination control strategy of direct-drive wind turbine based on reducing energy storage configuration capacity and charge and discharge times

Fault ride through coordination control strategy of direct-drive wind turbine based on reducing energy storage configuration capacity and charge and discharge times | 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 Fault ride through coordination control strategy of direct-drive wind turbine based on reducing energy storage configuration capacity and charge and discharge times Haitao Wu, Jianbiao Du, Huizhen Li, Dan ZHang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4871725/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 4 You are reading this latest preprint version Abstract In order to solve the problems of large capacity and frequent charging and discharging of energy storage unit during low voltage traversal of energy storage assisted direct-driven wind turbine, a coordinated control method of wind turbine side, grid side and energy storage side is proposed. Firstly, the mechanism of dc voltage spike caused by voltage sag is analyzed, and the relationship between dc power and ac voltage under fault is deduced, and the coordinated control mechanism is established. Secondly, with the goal of effectively reducing the capacity of flywheel energy storage unit and the frequency of charge and discharge action, three kinds of faults are divided into mild, moderate and severe faults according to the voltage drop degree of power grid. The control modes of wind turbine side, grid side and energy storage side under different faults are analyzed, and a coordinated control strategy among the three is established. Under the premise of low flywheel energy storage capacity, low voltage ride through with different voltage drop depths can be realized, and the charge and discharge times of flywheel energy storage unit can be effectively reduced according to the voltage drop degree of the power grid. The system simulation model is established by using PSCAD/EMTDC, and the simulation results prove that the proposed coordination control strategy is correct and effective. Permanent Magnet direct-drive wind turbine Flywheel energy storage Low voltage ride through Coordination control strategy Power balance Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Reviewers invited by journal 24 Sep, 2024 Editor assigned by journal 09 Aug, 2024 Submission checks completed at journal 07 Aug, 2024 First submitted to journal 07 Aug, 2024 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. 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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-4871725","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":341476401,"identity":"55cd3e12-b6eb-4823-968c-c945fedd9d60","order_by":0,"name":"Haitao Wu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAzElEQVRIiWNgGAWjYFACHiA2AGL2xgaIwAHCWhgbQFp4eA4CtSQQrQVESYCUE6PF4Ebu8QcMBdsS90s+bt3M+4NBju9GAuPnArxa8hKBDrud2COd2HabJ4HBWPJGArP0DDxazG7kGDb/QdKSuOFGAhszDwEtEFskD4K11JOgRYIRrCXBgJAW+zNvDGcAtRj3nElsuzknTcJw5pmHzdL4tEi25xh8YPhzW7a9/fizG29sbOT5jicf/IxPCzqQAGJIRI2CUTAKRsEooAAAANM6Tq6+4KlGAAAAAElFTkSuQmCC","orcid":"","institution":"Inner Mongolia University of Technology","correspondingAuthor":true,"prefix":"","firstName":"Haitao","middleName":"","lastName":"Wu","suffix":""},{"id":341476402,"identity":"d3b26615-e060-4cb2-973f-892d695ac53e","order_by":1,"name":"Jianbiao Du","email":"","orcid":"","institution":"Inner Mongolia University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Jianbiao","middleName":"","lastName":"Du","suffix":""},{"id":341476403,"identity":"48694139-9fc7-4fb9-8b76-ae08c9db79cc","order_by":2,"name":"Huizhen Li","email":"","orcid":"","institution":"Inner Mongolia University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Huizhen","middleName":"","lastName":"Li","suffix":""},{"id":341476404,"identity":"048b7854-c135-4a0f-8891-2ba069764e12","order_by":3,"name":"Dan ZHang","email":"","orcid":"","institution":"Inner Mongolia University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Dan","middleName":"","lastName":"ZHang","suffix":""}],"badges":[],"createdAt":"2024-08-07 04:06:26","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4871725/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4871725/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":63846247,"identity":"acc6c6a7-2e53-4280-a57d-1f56eefec7db","added_by":"auto","created_at":"2024-09-03 02:46:15","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":9108463,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4871725/v1_covered_651dec07-8c1d-4d65-9417-b8d1c9df3b5b.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":" Fault ride through coordination control strategy of direct-drive wind turbine based on reducing energy storage configuration capacity and charge and discharge times","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"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":"electrical-engineering","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"elen","sideBox":"Learn more about [Electrical Engineering](http://link.springer.com/journal/202)","snPcode":"202","submissionUrl":"https://submission.nature.com/new-submission/202/3","title":"Electrical Engineering","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Permanent Magnet direct-drive wind turbine, Flywheel energy storage, Low voltage ride through, Coordination control strategy, Power balance","lastPublishedDoi":"10.21203/rs.3.rs-4871725/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4871725/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn order to solve the problems of large capacity and frequent charging and discharging of energy storage unit during low voltage traversal of energy storage assisted direct-driven wind turbine, a coordinated control method of wind turbine side, grid side and energy storage side is proposed. Firstly, the mechanism of dc voltage spike caused by voltage sag is analyzed, and the relationship between dc power and ac voltage under fault is deduced, and the coordinated control mechanism is established. Secondly, with the goal of effectively reducing the capacity of flywheel energy storage unit and the frequency of charge and discharge action, three kinds of faults are divided into mild, moderate and severe faults according to the voltage drop degree of power grid. The control modes of wind turbine side, grid side and energy storage side under different faults are analyzed, and a coordinated control strategy among the three is established. Under the premise of low flywheel energy storage capacity, low voltage ride through with different voltage drop depths can be realized, and the charge and discharge times of flywheel energy storage unit can be effectively reduced according to the voltage drop degree of the power grid. 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