{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11973337","patent":{"patent_number":"US-11973337","title":"Ferromagnetic harmonic elimination method for active matched resistance voltage transformer based on PID adjustment","assignee":null,"inventors":[],"filing_date":"2023-08-17T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["G05B","H02J","G06F","H02J"],"num_claims":6,"abstract":"This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for ferromagnetic resonance for an active resistance-matching voltage transformer based on PID-adjustment, including compiling a resistance matching algorithm; designing and building a harmonic elimination control system based on the PID control strategy; presetting an active resistance-matching strategy; designing an engineering scheme for placing resistors. The present invention can solve the contradiction between the standards of the harmonic elimination resistance and the winding overload in the open triangle of the voltage transformer when the single-phase ground fault occurs and the fault is eliminated; avoiding the technical difficulties that the characteristics of single-phase ground fault and power frequency resonance are difficult to distinguish and the ferromagnetic resonance caused by single-phase ground fault; ensuring that the voltage transformer PT is not overloaded and burned."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Ferromagnetic harmonic elimination method for active matched resistance voltage transformer based on PID adjustment","description":"This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for fer","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11973337","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-11973337","citation_suggestion":"Patentable. \"Ferromagnetic harmonic elimination method for active matched resistance voltage transformer based on PID adjustment\" (US-11973337). https://patentable.app/patents/US-11973337","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11973337","json":"https://patentable.app/api/llm-context/US-11973337","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:43:50.213Z"}