{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9627956","patent":{"patent_number":"US-9627956","title":"Ride-through and recovery method for DC short circuit faults of hybrid MMC-based HVDC system","assignee":null,"inventors":[],"filing_date":"2015-02-12T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":5,"abstract":"A ride-through and recovery method for DC short circuit faults of a hybrid modular multilevel converter based high-voltage direct current transmission (MMC-HVDC) system, the hybrid MMC including multiple full-bridge sub-modules and half-bridge sub-modules, and the method including: 1) detecting whether a DC short circuit fault occurs, and proceeding to step (2) if yes and continuing detecting if no; 2) realizing ride-through of the DC short circuit fault; 3) detecting whether a DC residual voltage increases, and proceeding to step (4) if yes and continuing detecting if no; and 4) realizing DC short circuit fault recovery."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ride-through and recovery method for DC short circuit faults of hybrid MMC-based HVDC system","description":"A ride-through and recovery method for DC short circuit faults of a hybrid modular multilevel converter based high-voltage direct current transmission (MMC-HVDC) system, the hybrid MMC including multi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9627956","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-9627956","citation_suggestion":"Patentable. \"Ride-through and recovery method for DC short circuit faults of hybrid MMC-based HVDC system\" (US-9627956). https://patentable.app/patents/US-9627956","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9627956","json":"https://patentable.app/api/llm-context/US-9627956","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:36:47.903Z"}