{"id":"https://openalex.org/W2016946843","doi":"https://doi.org/10.1109/isgt.2014.6816456","title":"An approach to achieving global optimum of AC electric power system state estimators","display_name":"An approach to achieving global optimum of AC electric power system state estimators","publication_year":2014,"publication_date":"2014-02-01","ids":{"openalex":"https://openalex.org/W2016946843","doi":"https://doi.org/10.1109/isgt.2014.6816456","mag":"2016946843"},"language":"en","primary_location":{"id":"doi:10.1109/isgt.2014.6816456","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isgt.2014.6816456","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISGT 2014","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5021106309","display_name":"Yang Weng","orcid":"https://orcid.org/0000-0002-5267-1303"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yang Weng","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","Dept. of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA#TAB#","institution_ids":["https://openalex.org/I74973139"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101598580","display_name":"Marija Ili\u0107","orcid":"https://orcid.org/0000-0002-6835-197X"},"institutions":[{"id":"https://openalex.org/I74973139","display_name":"Carnegie Mellon University","ror":"https://ror.org/05x2bcf33","country_code":"US","type":"education","lineage":["https://openalex.org/I74973139"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Marija D. Ilic","raw_affiliation_strings":["Carnegie Mellon University, Pittsburgh, PA","Dept. of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Carnegie Mellon University, Pittsburgh, PA","institution_ids":["https://openalex.org/I74973139"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA#TAB#","institution_ids":["https://openalex.org/I74973139"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I74973139"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10305","display_name":"Power System Optimization and Stability","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10305","display_name":"Power System Optimization and Stability","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10454","display_name":"Optimal Power Flow Distribution","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11236","display_name":"Control Systems and Identification","score":0.9923999905586243,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/estimator","display_name":"Estimator","score":0.7228467464447021},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.6364784240722656},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.5768362283706665},{"id":"https://openalex.org/keywords/global-optimization","display_name":"Global optimization","score":0.5673205852508545},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.5644476413726807},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.5424699187278748},{"id":"https://openalex.org/keywords/state","display_name":"State (computer science)","score":0.538769006729126},{"id":"https://openalex.org/keywords/electric-power-system","display_name":"Electric power system","score":0.5083305239677429},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.49575528502464294},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.4824400544166565},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.480782687664032},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.46050235629081726},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.45772701501846313},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.4534374475479126},{"id":"https://openalex.org/keywords/power-flow","display_name":"Power flow","score":0.4501887261867523},{"id":"https://openalex.org/keywords/ac-power","display_name":"AC power","score":0.42315375804901123},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.30180880427360535},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.21845293045043945},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.16481095552444458},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.07253867387771606},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.06411686539649963}],"concepts":[{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7228467464447021},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.6364784240722656},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.5768362283706665},{"id":"https://openalex.org/C164752517","wikidata":"https://www.wikidata.org/wiki/Q5570875","display_name":"Global optimization","level":2,"score":0.5673205852508545},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.5644476413726807},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5424699187278748},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.538769006729126},{"id":"https://openalex.org/C89227174","wikidata":"https://www.wikidata.org/wiki/Q2388981","display_name":"Electric power system","level":3,"score":0.5083305239677429},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.49575528502464294},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.4824400544166565},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.480782687664032},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.46050235629081726},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.45772701501846313},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.4534374475479126},{"id":"https://openalex.org/C2986056383","wikidata":"https://www.wikidata.org/wiki/Q556030","display_name":"Power flow","level":4,"score":0.4501887261867523},{"id":"https://openalex.org/C108755667","wikidata":"https://www.wikidata.org/wiki/Q1930258","display_name":"AC power","level":3,"score":0.42315375804901123},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.30180880427360535},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.21845293045043945},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.16481095552444458},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.07253867387771606},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.06411686539649963},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/isgt.2014.6816456","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isgt.2014.6816456","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ISGT 2014","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.7400000095367432,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1576347883","https://openalex.org/W1598852905","https://openalex.org/W1806104592","https://openalex.org/W1884347414","https://openalex.org/W1965284831","https://openalex.org/W1967073510","https://openalex.org/W1967447108","https://openalex.org/W1968878112","https://openalex.org/W2017081880","https://openalex.org/W2019740508","https://openalex.org/W2022575941","https://openalex.org/W2028180438","https://openalex.org/W2046746137","https://openalex.org/W2046839189","https://openalex.org/W2051073165","https://openalex.org/W2054256383","https://openalex.org/W2058124591","https://openalex.org/W2058314028","https://openalex.org/W2085833932","https://openalex.org/W2102674521","https://openalex.org/W2104106131","https://openalex.org/W2108720760","https://openalex.org/W2111653328","https://openalex.org/W2130498245","https://openalex.org/W2134150250","https://openalex.org/W2141380252","https://openalex.org/W2962729054","https://openalex.org/W4320800818","https://openalex.org/W6641552303","https://openalex.org/W6680179730","https://openalex.org/W6681233160"],"related_works":["https://openalex.org/W2571293944","https://openalex.org/W2377941745","https://openalex.org/W2564248808","https://openalex.org/W2756132392","https://openalex.org/W3035814349","https://openalex.org/W4285101096","https://openalex.org/W4320477335","https://openalex.org/W2518949622","https://openalex.org/W2043537261","https://openalex.org/W4382725876"],"abstract_inverted_index":{"This":[0],"paper":[1,172],"is":[2,136,146],"motivated":[3],"by":[4,38],"the":[5,9,13,29,39,66,77,89,93,103,107,112,116,123,127,139,166,174],"open":[6],"questions":[7],"concerning":[8],"ability":[10],"to":[11,55,138,160],"compute":[12],"global":[14,104,140],"optimum":[15,141],"of":[16,24,92,111],"nonlinear":[17,31],"state":[18],"estimators":[19],"(SE).":[20],"The":[21],"major":[22],"cause":[23],"these":[25],"problems":[26],"comes":[27],"from":[28],"highly":[30],"functions":[32],"relating":[33],"measurements":[34],"and":[35,68,95],"voltages":[36],"defined":[37],"AC":[40,48],"power":[41,50],"flow":[42],"models.":[43],"Conventional":[44],"approaches":[45],"in":[46,59,170],"today's":[47,178],"electric":[49],"system":[51],"SE":[52,151,167],"are":[53,158],"prone":[54],"sub-optimal":[56],"solutions,":[57],"which,":[58],"turn,":[60],"creates":[61],"unacceptably":[62],"large":[63],"differences":[64],"between":[65],"true":[67],"estimated":[69],"voltages.":[70],"In":[71],"this":[72,120,171],"paper,":[73],"we":[74,131],"first":[75,124],"formulate":[76],"problem":[78,128],"as":[79],"an":[80,98],"equivalent":[81],"convex":[82],"optimization":[83],"problem.":[84],"We":[85],"then":[86],"account":[87],"for":[88,101,122],"specific":[90],"structure":[91],"problem,":[94],"arrive":[96],"at":[97],"efficient":[99],"algorithm":[100],"finding":[102],"optimum,":[105],"namely":[106],"most":[108],"accurate":[109],"estimate":[110,135],"state.":[113],"Notably,":[114],"under":[115],"no":[117],"noise":[118,145],"assumption":[119],"approach":[121],"time":[125],"solved":[126],"exactly.":[129],"Further,":[130],"show":[132],"that":[133],"our":[134],"close":[137],"even":[142],"when":[143],"measurement":[144],"present,":[147],"while":[148],"currently":[149],"used":[150],"only":[152],"finds":[153],"a":[154],"local":[155],"optimum.":[156],"Simulations":[157],"shown":[159],"illustrate":[161],"improved":[162],"results":[163,175],"obtained":[164,176],"using":[165,177],"formulation":[168],"proposed":[169],"over":[173],"SE.":[179]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}