Proceedings. Joint International Power Conference Athens Power Tech,最新文献

{"title":"Effects of Voltage Gradient Distribution on External Flashovers of Polluted Outdoor High Voltage Power Plant","authors":"N. Alame, S. Shihab","doi":"10.1109/APT.1993.686843","DOIUrl":"https://doi.org/10.1109/APT.1993.686843","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116576156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of Methods for Ranking and Evaluation of voltage Collapse Contingencies applied to a Large-Scale Network","authors":"N. Reppen, R. R. Austria, J.A. Uhrin, M.C. Patel, A. Galatic","doi":"10.1109/APT.1993.686896","DOIUrl":"https://doi.org/10.1109/APT.1993.686896","url":null,"abstract":"Mclliods for ranking and evaluating circuit mtingcncics lcadiiig to voltage collapsc arc prcscntcd. A non-divcrgcnt powcr flow algorithni allows for cvaluation of contingcncics rcsitltiiig i n volt:igc coll:ipsc acid provides infonnation on the gcographic cxtctit of tlic voltagc problcm. Cotitingclicics that might lcnd to vol~lgc ollapsc arc rankm1 using ii voltagc collapsc pcrfonnancc indcx which mcrcsurcs rcnctivc loss in a sclcctcd arca. The iiicthds wcrc applied to a largc-scnlc nctwork rcprcsciidon of thc Allcghcny Power Systcin srid ticighlming rrtiltics. 'Ihc ptpcr tloctinictits thc alJlity of thc ranking algorithm to ilcctiratcly capturc the volt:igc collapsc contingcncics and tlic ability of tlic non clivcrgcnt powcr flow to characlcriu: thc scvcrity and gcogriphic cxtcnt of thc var tlcficicncy for cach individual voltagc colliipsc tax. 'llic pcrfomiancc of thcsc tcchniqucs mi tlic AI'S system suggcsts that tlicsc two atgorillinis crcn fonn thc basis for an cfficictit sccttrity analysis proccdurc for ninny systciiis whcrc voltii~c coll:tpsc wnccnis :ire limiting. Kcy Wortls: Voltiigc collapsc, security :m:ilysis, coiititigcncy sclcction, tion-divcrgciit powcr flow Many ittititics dctcnninc transmission loittliiig limits for vo1t:igc collapsc by computing I'V ciirvcs or QV ciirvcs for a fcw contiiigcncics wltich havc bccn prctlctcntiiticd to IC limiting. 'Iliis is often :I sntisfiictoly approach in powcr spstcni opcr:it ions irtitlcr ricinnal cotitlit ions wlicrc Ihc wcakricsscs of tlic tr:itisniissioti nctwork nrc icl:itivcly well known. Ilowcvcr, thcrc miiy lx :I itcctl for r:ipitl itlciitificttioti of critic:tl volt:igc collapsc contingcticics wlicti mjo r tr:insinission litics arc (itit of scivicc or for unusual tlisptch or transfer contlitioiis. Ill'l'cctivc coiitjiigcticy sclcctioii tcchniqucs arc cvcn niorc ii i i imiriri t for tlic tr:ittstnissioii p1:ititicr who is working with cvcr cltanging system conligumtions a n c l :I wide vrtricty of triinsfcr and loading mtitlitions. J.A. Uliriri M.C. Patcl A. Galatic Allcglicriy Power Scrvicc Corp. Mcmbcr Scnior Mcrnbcr Givcn an cfrcctivc cotitingcncy sclcction proccdurc. thcrc is still thc proMcm of cvaliiating contingcncics lor which thcrc is no mathcmatical solution. Sincc a conventional load flow program will divcrgc and \"blow up\" when a voltagc collapsc condition is cncountercd, thcrc is a nccd for altcmativc solution rncthods that can providc infonnation on thc location inid scvcrity of thc var tlcficiciicy causing Ihc voltagc collapsc condition. 'llicrcrorc. a sccurity analysis tool crcpablc of liaiidlitig voltage collapsc s i t u n h i s must includc an cffcctivc contingcncy ranking or scrccniiig procccltrrc as wcll as ti nctwork soluGoii method that can providc iiilonnation on tlic location o l tlic var tlcficicncy causing the voltage col1:ipsc. 'Iliis p:ipcr tltxrttiictits tlic pcrfomiancc of a voltagc collapsc ranking algorithm rod B tiondivergent load flow algorithm applied t","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"5 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126115816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design and Development of an Open EMS","authors":"L. Lima, P. Machado, A. Leal, Luciana Pereira, G. P. Azevedo","doi":"10.1109/APT.1993.686924","DOIUrl":"https://doi.org/10.1109/APT.1993.686924","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125570751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distribution Network Reconfiguration To Minimize Resistive Line Losses","authors":"G. Peponis, M. P. Papadopoulos, N. D. Hatziargyriou","doi":"10.1109/APT.1993.673869","DOIUrl":"https://doi.org/10.1109/APT.1993.673869","url":null,"abstract":"The objective of the analysis presented is to outline and validate a methodology for the optimization of MV distribution networks operation, so that variable loads are fed under minimum energy losses. Loss minimization is achieved by the installation of shunt capacitors and reconfiguration of the network. The impact of load variation and load modelling on the optimizing decisions is examined. Two different reconfiguration methods are applied and compared. >","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129097645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Localization Concepts in (In)-Security Analysis","authors":"V. Brandwajn","doi":"10.1109/APT.1993.686834","DOIUrl":"https://doi.org/10.1109/APT.1993.686834","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"1963 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129843216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Steady State Security Enhancement System","authors":"G. Cauley, N. Balu, N. G. Hingorani","doi":"10.1109/APT.1993.686870","DOIUrl":"https://doi.org/10.1109/APT.1993.686870","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122996430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new approach for feeder reconfiguration to minimize distribution system loss","authors":"M. Cho, T. Lee, C.S. Chen, C. Lu","doi":"10.1109/APT.1993.673868","DOIUrl":"https://doi.org/10.1109/APT.1993.673868","url":null,"abstract":"USTRACTThis paper presents a new method t o reduce the distribution system loss by feeder reconfiguration. The performance index (PI), which has been used by contingency ranking for transmission systems, is used to estimate the capability of real power loss reduction for each switching operation. By this method, the system loss can be solved very quickly as compared with the method of conventional three phase load flow analysis. It is important from the view point of computing time required because so many possible switching combinations are involved during the process to achieve the loss minimization of distribution systems. After calculating the PI value of all possible switching operations, two stage searching approach instead of conventional binary integer programming (BIP) is proposed to solve the optimal switching process for distribution systems. The evaluation function used to represent system loss reduction is derived and the depth first search algorithm is then applied to find the search level with the largest effect of loss reduction. To demonstrate the effectiveness of the proposed method, a practical distribution systems of Taiwan Power Company is selected for computer simulation. It is found that the feeder reconfiguration can be easily solved to result in system loss minimization with much less computing effort as compared with the previous works presented.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"25 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120918386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis And Optimization Of Distribution System Reliability Through The Optimization Of Emergency Response Operations","authors":"K. Zografos, C. Douligeris, L. Chaoxi, G. Develekos","doi":"10.1109/APT.1993.673901","DOIUrl":"https://doi.org/10.1109/APT.1993.673901","url":null,"abstract":"A BST.RA CT Service unavailability in an electric utility company depends on tlie frequency arid the duration of tlic service interruptions. In this paper, we deal wit11 the initiirnization of the duration of tlie interruption by optimizing tlie emergency response operations capabililies of an electric utility. First, we analyze data 011 service unavailabilidy and deployment of emergency response units and then we present a model for tlie optimization of tliese operations. Tlic model consists of a districting and a simulation part. We focus our attcntion in this paper on tlie siiiiulotion part and its capabilities. Several case studies are prcsented to sliow the possible irnprovernciits if our niotlcl is used.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"2010 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127347199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Automated Novel Design Technique for Optimal Harmonic Filter Design","authors":"A. Sharaf, K. Banks, R. Adillah","doi":"10.1109/APT.1993.686879","DOIUrl":"https://doi.org/10.1109/APT.1993.686879","url":null,"abstract":"The paper presents a novel approach in designing liarnionic shunt filters for harmonic filtering, noise mitigation and reduction of harmonic penetration into the host electric utility grid. The technique requires actual ineasurenient of system harmonic impedance. The scheme is based on constrained selective optimization perforinance criteria, of weighted System and filter harmonic currents and the harmonic voltage, for specified continuous or discrete range of dominant liarrnonics of stipulated fi-equencies. The proposed technique cat1 replace the existing trial and error approach with a guided constrained optimization that ensure the best design offering low cost, harmonic reduction and possibly a degree of reactive power coinpensation in the system. INTRODUCTION The priinary goal of series and sliurit passive harmonic filters is to reduce harmonic injection into the host electric utility grid and/or other sensitive type loads. Secondary objectives include reactive conipensation and power factor correction. Series filters presents high impedance path to particular harmonics, hence act as a blockiiig filter. Parallel or shunt type harmonic filters are used extensively in power networks to provide a low impedance path to dominant interfering harmonics generated by the nonlinear static or dynamic load. They are classified into single tuned, double tuned, high pass damped and C-type filters [l-21. Best harmonic filters should ensure maximum absorption of interfering Irarmonics at tniriirnuni cost while ensuring adequate level of reactive power compensation. However, this goal is usually hampered with the ever varying conditions in the system due to topology changes as a result of line switchings, load operating conditions necessitating capacitor energization and deenergization. The classical design philosophy [3-51 employs correction factors to account for the detuning effect due to small frequency variations as well as (L) and (C) Component variations due to temperature and aging. Different criteria do exist for filter design including telephone interference, voltage distortion and current distortion levels or a weighted measure of allowable waveforin distortion [G-81. Usually a composite criteria based on liarnionic voltage and harmonic system currents provide the most cost effective solution. To allow for Complete Control of the filter design process, a new approach based on selective constrained optimization problem is utilized. The proposed method rely on accurate System, calculated or","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127537780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Power Control with Stepped-wave Modulated Vsi","authors":"M. Fracchia, P. Pozzobon","doi":"10.1109/APT.1993.686850","DOIUrl":"https://doi.org/10.1109/APT.1993.686850","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114307504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}