Reactive Power Planning Based on Novel Voltage Stability Index Including Renewable Energy Resources | 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 Reactive Power Planning Based on Novel Voltage Stability Index Including Renewable Energy Resources M.Sonbol Elmasry, Omar. H. Abdulla, Abdulla M. Shaheen, Hady. H. Fayek This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6315484/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 02 Apr, 2026 Read the published version in Scientific Reports → Version 1 posted 11 You are reading this latest preprint version Abstract Voltage instability problem in power system network is one of the main issues in power system network to prevent the voltage collapse during both the normal and contingency cases. Reactive power planning is performed to enhance the voltage stability of the power system network during the normal and contingency (N-1) operation using novel voltage stability index. The proposed index has been evaluated to identify the weak buses to allocate the reactive power compensator to insure the bus voltage level within limits and improve the voltage stability. The novel voltage stability index is simple algebraic equation with no use for any differential equation and can be included as objective function for optimal reactive power planning. The novel index has been applied to modified IEEE 9-bus and 14-bus systems including renewable energy such as hydro, wind turbines and PV- solar cells. Using DIgSILENT software to investigate the simulation results. Physical sciences/Engineering Physical sciences/Engineering/Energy infrastructure/Energy grids and networks Sequential Reactive Power planning identification of the weakest bus Weakest bus allocation Voltage Stability Index and Voltage Stability improvement Full Text Additional Declarations No competing interests reported. Supplementary Files Supplementaryfile.docx Cite Share Download PDF Status: Published Journal Publication published 02 Apr, 2026 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 08 Oct, 2025 Reviews received at journal 12 Aug, 2025 Reviewers agreed at journal 28 Jul, 2025 Reviewers agreed at journal 05 Jun, 2025 Reviews received at journal 15 May, 2025 Reviewers agreed at journal 03 May, 2025 Reviewers invited by journal 28 Apr, 2025 Editor assigned by journal 23 Apr, 2025 Editor invited by journal 16 Apr, 2025 Submission checks completed at journal 16 Apr, 2025 First submitted to journal 26 Mar, 2025 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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