{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11979025","patent":{"patent_number":"US-11979025","title":"Dual-mode combined control method for multi-inverter system based on double split transformer","assignee":null,"inventors":[],"filing_date":"2021-05-13T00:00:00.000Z","publication_date":"2024-05-07T00:00:00.000Z","cpc_codes":["H02J","H02J","G06F","G06F","H02J","H02J","H02J","H02J","H02J"],"num_claims":3,"abstract":"A dual-mode combined control method for a multi-inverter system based on a double split transformer is provided. For an extremely-weak grid, the method provides the dual-mode combined control method for a multi-inverter system based on a double split transformer. According to the method, the equivalent grid impedance at a point of common coupling (PCC) of one grid-connected inverter (GCI) in the multi-inverter system based on the double split transformer is obtained with a grid impedance identification algorithm, and the system sequentially operates in a full current source mode, a hybrid mode, and a full voltage source mode according to a gradually increasing equivalent grid impedance, thereby effectively improving the stability of the multi-inverter system based on the double split transformer during variation of the strength of the grid. The method ensures that the system can still operate stably in the extremely-weak grid."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Dual-mode combined control method for multi-inverter system based on double split transformer","description":"A dual-mode combined control method for a multi-inverter system based on a double split transformer is provided. For an extremely-weak grid, the method provides the dual-mode combined control method f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11979025","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11979025","citation_suggestion":"Patentable. \"Dual-mode combined control method for multi-inverter system based on double split transformer\" (US-11979025). https://patentable.app/patents/US-11979025","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11979025","json":"https://patentable.app/api/llm-context/US-11979025","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:43:44.268Z"}