{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9793789","patent":{"patent_number":"US-9793789","title":"Apparatus and method for protecting grid-connected inverter from occurrence of low grid voltage","assignee":null,"inventors":[],"filing_date":"2014-06-20T00:00:00.000Z","publication_date":"2017-10-17T00:00:00.000Z","cpc_codes":["H02M","H02J","H02M","H02M","H02M","H02M"],"num_claims":4,"abstract":"An apparatus for protecting a grid-connected inverter from a low grid voltage includes a first output current sensor configured to sense an output current of a grid-connected inverter, a first output current calculator configured to calculate a D-axis current and a Q-axis current of the output current to obtain the output current that is sensed, and a first output current controller configured to determine whether a difference between the output current and a reference current exceeds a predetermined range, and to decrease the output current by a predetermined value when the difference between the output current and the reference current exceeds the predetermined range."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for protecting grid-connected inverter from occurrence of low grid voltage","description":"An apparatus for protecting a grid-connected inverter from a low grid voltage includes a first output current sensor configured to sense an output current of a grid-connected inverter, a first output ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9793789","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-9793789","citation_suggestion":"Patentable. \"Apparatus and method for protecting grid-connected inverter from occurrence of low grid voltage\" (US-9793789). https://patentable.app/patents/US-9793789","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9793789","json":"https://patentable.app/api/llm-context/US-9793789","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:59:34.408Z"}