{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11509137","patent":{"patent_number":"US-11509137","title":"Voltage and current management in three-phase interconnected power systems using positive and negative sequence secondary control","assignee":null,"inventors":[],"filing_date":"2020-10-28T00:00:00.000Z","publication_date":"2022-11-22T00:00:00.000Z","cpc_codes":["H02J","H02J","G05B","H02J","H02J","H02J"],"num_claims":17,"abstract":"A method and apparatus for secondary control in a power network. In one embodiment, the method comprises determining a frequency area controller error (ACE) equation for an area and a voltage ACE for the area; decomposing the frequency ACE equation and the voltage ACE equation to generate a first set of symmetric sequences for the frequency ACE equation and a second set of symmetric sequences for the voltage ACE equation, respectively, wherein the first and second sets of symmetric sequences represent positive and negative sequences; and implementing, by an area controller for the area, secondary control on each sequence in the first and second sets of symmetric sequences separately."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Voltage and current management in three-phase interconnected power systems using positive and negative sequence secondary control","description":"A method and apparatus for secondary control in a power network. In one embodiment, the method comprises determining a frequency area controller error (ACE) equation for an area and a voltage ACE for ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11509137","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-11509137","citation_suggestion":"Patentable. \"Voltage and current management in three-phase interconnected power systems using positive and negative sequence secondary control\" (US-11509137). https://patentable.app/patents/US-11509137","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11509137","json":"https://patentable.app/api/llm-context/US-11509137","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T12:31:24.490Z"}