{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9729085","patent":{"patent_number":"US-9729085","title":"Observer-based control system for grid-connected DC/AC converters with LCL-filter","assignee":null,"inventors":[],"filing_date":"2015-08-28T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":7,"abstract":"Systems related to controlling a DC/AC converter. A control system uses a nonlinear adaptive observer to estimate the state variables inverter current and converter voltage using a sensed grid current and a bus voltage as inputs. For non-observable points (such as when the duty cycle=0.5), the required information can be found from the DC bus voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Observer-based control system for grid-connected DC/AC converters with LCL-filter","description":"Systems related to controlling a DC/AC converter. A control system uses a nonlinear adaptive observer to estimate the state variables inverter current and converter voltage using a sensed grid current","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9729085","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-9729085","citation_suggestion":"Patentable. \"Observer-based control system for grid-connected DC/AC converters with LCL-filter\" (US-9729085). https://patentable.app/patents/US-9729085","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9729085","json":"https://patentable.app/api/llm-context/US-9729085","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:47:21.242Z"}