{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9843274","patent":{"patent_number":"US-9843274","title":"Three-level photovoltaic inverter pulse width modulation method and modulator","assignee":null,"inventors":[],"filing_date":"2015-05-08T00:00:00.000Z","publication_date":"2017-12-12T00:00:00.000Z","cpc_codes":["H02J","H02M","H02M","H02M","H02J","H02M","H02M"],"num_claims":11,"abstract":"A three-level photovoltaic inverter pulse width modulation method and a three-level photovoltaic inverter pulse width modulator. The method includes: when it is detected that potential safety hazards exist in a three-level photovoltaic inverter, switching the pulse width modulation mode of the three-level photovoltaic inverter into a 13-vector space vector pulse width modulation mode, to solve the fault or abnormal problems in the three-level photovoltaic inverter such as midpoint potential offset or excessively large common mode leakage current formed when the ground stray capacitance of a photovoltaic assembly is large, wherein according to the 13-vector SVPWM mode, 12 short vectors in 27 on-off state vectors of the three-level photovoltaic inverter are abandoned, and only six long vectors, six middle vectors and three zero vectors are reserved."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Three-level photovoltaic inverter pulse width modulation method and modulator","description":"A three-level photovoltaic inverter pulse width modulation method and a three-level photovoltaic inverter pulse width modulator. The method includes: when it is detected that potential safety hazards ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9843274","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-9843274","citation_suggestion":"Patentable. \"Three-level photovoltaic inverter pulse width modulation method and modulator\" (US-9843274). https://patentable.app/patents/US-9843274","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9843274","json":"https://patentable.app/api/llm-context/US-9843274","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:37:12.289Z"}