{"id":"https://openalex.org/W3159249648","doi":"https://doi.org/10.1109/access.2021.3075328","title":"Analysis of the Operating Margin Evaluation of Multi-Infeed LCC-HVDC Systems Based on the Equivalent Impedance","display_name":"Analysis of the Operating Margin Evaluation of Multi-Infeed LCC-HVDC Systems Based on the Equivalent Impedance","publication_year":2021,"publication_date":"2021-01-01","ids":{"openalex":"https://openalex.org/W3159249648","doi":"https://doi.org/10.1109/access.2021.3075328","mag":"3159249648"},"language":"en","primary_location":{"id":"doi:10.1109/access.2021.3075328","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3075328","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09411838.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09411838.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5103125977","display_name":"Sicheng Wang","orcid":"https://orcid.org/0000-0003-0965-3342"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Sicheng Wang","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-0965-3342","affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057525409","display_name":"Shan Gao","orcid":"https://orcid.org/0000-0002-9632-205X"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shan Gao","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-9632-205X","affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101503012","display_name":"Zhong Chen","orcid":"https://orcid.org/0000-0001-7513-3981"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhong Chen","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042335164","display_name":"Xin Zhao","orcid":"https://orcid.org/0000-0003-1421-2656"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xin Zhao","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-1421-2656","affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006657463","display_name":"Tiancheng E. Song","orcid":"https://orcid.org/0000-0003-2950-6526"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tiancheng E. Song","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-2950-6526","affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100345704","display_name":"Yu Liu","orcid":"https://orcid.org/0000-0002-0823-5141"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Liu","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-0823-5141","affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067651532","display_name":"Yu Cai Dong","orcid":"https://orcid.org/0000-0002-1026-5147"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dong Yu","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-1026-5147","affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5082431226","display_name":"Sufan Jiang","orcid":"https://orcid.org/0000-0002-5470-1895"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sufan Jiang","raw_affiliation_strings":["Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","School of Electrical Engineering, Southeast University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]},{"raw_affiliation_string":"School of Electrical Engineering, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5103125977"],"corresponding_institution_ids":["https://openalex.org/I76569877"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.9152,"has_fulltext":true,"cited_by_count":12,"citation_normalized_percentile":{"value":0.73612188,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"9","issue":null,"first_page":"66268","last_page":"66281"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11102","display_name":"HVDC Systems and Fault Protection","score":0.9998999834060669,"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/T11102","display_name":"HVDC Systems and Fault Protection","score":0.9998999834060669,"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/T10305","display_name":"Power System Optimization and Stability","score":0.9994999766349792,"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/T11941","display_name":"Power System Reliability and Maintenance","score":0.9990000128746033,"subfield":{"id":"https://openalex.org/subfields/2213","display_name":"Safety, Risk, Reliability and Quality"},"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/margin","display_name":"Margin (machine learning)","score":0.718401312828064},{"id":"https://openalex.org/keywords/electrical-impedance","display_name":"Electrical impedance","score":0.6501979231834412},{"id":"https://openalex.org/keywords/short-circuit-ratio","display_name":"Short circuit ratio","score":0.542104184627533},{"id":"https://openalex.org/keywords/equivalent-circuit","display_name":"Equivalent circuit","score":0.5418378710746765},{"id":"https://openalex.org/keywords/equivalent-impedance-transforms","display_name":"Equivalent impedance transforms","score":0.5283287763595581},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.4499182105064392},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.4276133179664612},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.39774078130722046},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.3832273781299591},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.2981953024864197},{"id":"https://openalex.org/keywords/short-circuit","display_name":"Short circuit","score":0.2724750339984894},{"id":"https://openalex.org/keywords/control","display_name":"Control (management)","score":0.07772320508956909}],"concepts":[{"id":"https://openalex.org/C774472","wikidata":"https://www.wikidata.org/wiki/Q6760393","display_name":"Margin (machine learning)","level":2,"score":0.718401312828064},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.6501979231834412},{"id":"https://openalex.org/C152478096","wikidata":"https://www.wikidata.org/wiki/Q7502023","display_name":"Short circuit ratio","level":5,"score":0.542104184627533},{"id":"https://openalex.org/C23572009","wikidata":"https://www.wikidata.org/wiki/Q964981","display_name":"Equivalent circuit","level":3,"score":0.5418378710746765},{"id":"https://openalex.org/C76450673","wikidata":"https://www.wikidata.org/wiki/Q5384722","display_name":"Equivalent impedance transforms","level":3,"score":0.5283287763595581},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.4499182105064392},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.4276133179664612},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.39774078130722046},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3832273781299591},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.2981953024864197},{"id":"https://openalex.org/C68583231","wikidata":"https://www.wikidata.org/wiki/Q206907","display_name":"Short circuit","level":3,"score":0.2724750339984894},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.07772320508956909},{"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/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0},{"id":"https://openalex.org/C133321666","wikidata":"https://www.wikidata.org/wiki/Q3238394","display_name":"LED circuit","level":4,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2021.3075328","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3075328","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09411838.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:8565913342cb48f3b42b5f8b4a01cceb","is_oa":true,"landing_page_url":"https://doaj.org/article/8565913342cb48f3b42b5f8b4a01cceb","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 9, Pp 66268-66281 (2021)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2021.3075328","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3075328","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09411838.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.5799999833106995,"id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G2253333459","display_name":null,"funder_award_id":"52094017000W","funder_id":"https://openalex.org/F4320326707","funder_display_name":"State Grid Corporation of China"},{"id":"https://openalex.org/G4118930636","display_name":null,"funder_award_id":"52094017000W","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G6527191784","display_name":null,"funder_award_id":"2016YFB0900600","funder_id":"https://openalex.org/F4320326707","funder_display_name":"State Grid Corporation of China"},{"id":"https://openalex.org/G6756986832","display_name":null,"funder_award_id":"2016YFB0900600","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"}],"funders":[{"id":"https://openalex.org/F4320326707","display_name":"State Grid Corporation of China","ror":"https://ror.org/05twwhs70"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3159249648.pdf","grobid_xml":"https://content.openalex.org/works/W3159249648.grobid-xml"},"referenced_works_count":18,"referenced_works":["https://openalex.org/W289159348","https://openalex.org/W1763243278","https://openalex.org/W1964930223","https://openalex.org/W1979019816","https://openalex.org/W1985289927","https://openalex.org/W2003216162","https://openalex.org/W2008514077","https://openalex.org/W2100162140","https://openalex.org/W2105891278","https://openalex.org/W2135227557","https://openalex.org/W2145518601","https://openalex.org/W2172909134","https://openalex.org/W2287445538","https://openalex.org/W2611187305","https://openalex.org/W2800366912","https://openalex.org/W2890713628","https://openalex.org/W2921835984","https://openalex.org/W2963465525"],"related_works":["https://openalex.org/W2117283676","https://openalex.org/W3202183310","https://openalex.org/W2054492307","https://openalex.org/W2393144863","https://openalex.org/W2108343773","https://openalex.org/W1989949313","https://openalex.org/W2010645543","https://openalex.org/W2220082745","https://openalex.org/W1972900143","https://openalex.org/W2354881693"],"abstract_inverted_index":{"In":[0,80],"China,":[1],"a":[2,89,136],"structure":[3],"in":[4],"which":[5,155],"multiple":[6,26],"line-commutated":[7],"converter":[8,216],"based":[9,63],"high-voltage":[10],"direct":[11],"current":[12],"(LCC-HVDC)":[13],"systems":[14,127],"feed":[15],"into":[16],"the":[17,25,30,39,61,65,72,77,94,108,117,131,140,143,161,165,181,191,196,200,203,206,210],"same":[18],"AC":[19,41,124],"system":[20,42,48,85,167],"has":[21],"been":[22],"formed.":[23],"For":[24],"LCC-HVDC":[27,84,166],"infeed":[28],"system,":[29],"electrical":[31,120],"strength":[32,62,121],"and":[33,111,119,125,130,168,178,205,213],"real":[34,73],"operating":[35,74,99,148,162,173,187,211],"condition":[36,75,212],"evaluation":[37],"of":[38,44,123,139,164,184,195,202,215],"receiving":[40],"are":[43,128],"great":[45],"significance":[46],"for":[47,171,208],"operation.":[49],"The":[50,97,146,175,193],"multi-infeed":[51,98,147],"short":[52,100],"circuit":[53,101],"ratio":[54,102],"(MISCR)":[55],"is":[56,86,104,133,152],"generally":[57],"utilized":[58,158],"to":[59,88,159],"assess":[60],"on":[64],"rated":[66,144],"parameters;":[67],"hence,":[68],"it":[69],"cannot":[70],"analyze":[71],"under":[76,142],"non-rated":[78],"status.":[79,145],"this":[81],"paper,":[82],"an":[83],"equivalent":[87,109,112],"grounded":[90],"impedance":[91,110],"without":[92],"changing":[93],"external":[95],"characteristics.":[96],"(MIOSCR)":[103],"then":[105],"deduced":[106,134],"from":[107],"nodal":[113],"analysis.":[114],"Relationships":[115],"between":[116],"MIOSCR":[118,141,177,204],"indices":[122],"AC/DC":[126],"analyzed,":[129],"MISCR":[132],"as":[135],"special":[137],"case":[138,197],"margin":[149,163,214],"coefficient":[150],"(MIOMC)":[151],"finally":[153],"proposed,":[154],"can":[156],"be":[157],"evaluate":[160],"provide":[169],"guidance":[170],"designing":[172],"strategies.":[174],"proposed":[176],"MIOMC":[179,207],"overcome":[180],"previous":[182],"shortcomings":[183],"inaccuracy":[185],"about":[186],"status":[188],"assessment":[189],"by":[190],"MISCR.":[192],"results":[194],"study":[198],"demonstrate":[199],"effectiveness":[201],"assessing":[209],"buses.":[217]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}