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

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A New Method and Instrument for Ground Impedance Measurements 一种测量地阻抗的新方法和新仪器
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686906
G. Cokkinides, A. Meliopoulos
{"title":"A New Method and Instrument for Ground Impedance Measurements","authors":"G. Cokkinides, A. Meliopoulos","doi":"10.1109/APT.1993.686906","DOIUrl":"https://doi.org/10.1109/APT.1993.686906","url":null,"abstract":"This paper describes the hardware, software, and testing procedures using the smart ground meter, developed under EPRI sponsorship. The functions of the meter are discussed and examples of recent nieasurements are presented using a prototype unit. The instrument injects a transient electric current between the ground under measurement and an auxiliary ground, and it measures ground pokntial differences (GPDs) around the ground under measurement. 'I'he GI'D measurements are processed with software which rejects external noise using correlation methods. Subsequently, estimation methods are used to extract thc ground potential rise and ground impedance. 'I'he final result is the ground inipedance versus frequency in a user selected frequency range. The data collected with the smart ground meter can be utilized for a number of applications, such as estimation of maximum ground potential rise, touch and step voltage measurements, soil resistivity evaluation, etc.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"1 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":"130600241","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}
引用次数: 1
Overvoltages in industrial networks 工业网络中的过电压
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673934
Z. Ciok
{"title":"Overvoltages in industrial networks","authors":"Z. Ciok","doi":"10.1109/APT.1993.673934","DOIUrl":"https://doi.org/10.1109/APT.1993.673934","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"19 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":"129276656","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}
引用次数: 2
Comparison of Methods for Calculation of Margins to Voltage Instability 电压不稳定裕度计算方法的比较
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686873
O. Fosso, N. Flatabø, B. Hahavik, A. T. Holen
{"title":"Comparison of Methods for Calculation of Margins to Voltage Instability","authors":"O. Fosso, N. Flatabø, B. Hahavik, A. T. Holen","doi":"10.1109/APT.1993.686873","DOIUrl":"https://doi.org/10.1109/APT.1993.686873","url":null,"abstract":"The paper describes and compares three methods for calculation of margins to voltage instability: a second order optimization formulation successive linearizations and sensitivity calculations fast decoupled load flow (FDLF) combined with curve fit They are all based on the static load flow equations, and voltage instability margins are given in terms of MW, MVAr or MVA load increase. The comparison focuses on: initiation requirements, flexibility to increase the load, load modelling, reactive power generation limits, speed, accuracy and convergence robustness. Also included are example calculations on a Norwegian 51 1 -bus system.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"1 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":"128966624","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}
引用次数: 13
Romanian Overhead Electric Lines Compacting 罗马尼亚架空电线压缩
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686840
L.M. Goia, N. Golovanov
{"title":"Romanian Overhead Electric Lines Compacting","authors":"L.M. Goia, N. Golovanov","doi":"10.1109/APT.1993.686840","DOIUrl":"https://doi.org/10.1109/APT.1993.686840","url":null,"abstract":"The paper analyses the parametric influence of some geometric elements of the 110 and 400 IcV simple and double circuit lines on the efficiency of the carried powers transfer, and it advances suggestions on the conductors bunch composition and on the compact line phases suspension. Based on this analysis, suggestions are made in order to ensure compacting of maximum transmission efficiency.","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":"125606889","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}
引用次数: 0
A Monte Carlo Tool for estimating contingency 估计偶然性的蒙特卡罗工具
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673881
C. Singh, T. Pravin, M. Bhavaraju, M. Lauby
{"title":"A Monte Carlo Tool for estimating contingency","authors":"C. Singh, T. Pravin, M. Bhavaraju, M. Lauby","doi":"10.1109/APT.1993.673881","DOIUrl":"https://doi.org/10.1109/APT.1993.673881","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"44 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114116755","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}
引用次数: 6
Reservoir operation rules for hydroelectric power system optimization 水库运行规则对水电系统的优化
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673938
S. Soares, A. Carneiro
{"title":"Reservoir operation rules for hydroelectric power system optimization","authors":"S. Soares, A. Carneiro","doi":"10.1109/APT.1993.673938","DOIUrl":"https://doi.org/10.1109/APT.1993.673938","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"29 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":"122915334","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}
引用次数: 22
An In-Depth Analysis of an advanced Series Compensation Technique 一种先进串联补偿技术的深入分析
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673935
S.G. Helbing, G. Karady
{"title":"An In-Depth Analysis of an advanced Series Compensation Technique","authors":"S.G. Helbing, G. Karady","doi":"10.1109/APT.1993.673935","DOIUrl":"https://doi.org/10.1109/APT.1993.673935","url":null,"abstract":"A set of analytical equations describing tlie stcady state beliavior of an advanced form of scrics compcnsation is developed. The sclienac consists of a series capacitor conncctcd in parallcl with a thyristor-controlled rcaclor. Tlic cquations reveal tlie changes in the overall series cornpcnsalion by varying the thyristor firing angle. Additionally, the equations allow a means of calculating tlie cxpected compensation level for a given system. The eKccts of changes in the circuit parameters using the equations is also iwcsligaled, along with tlic harnionics gcncratcd by the cllyristor-controlled reactor. The steady state and transient characteristics of the advanced scrics cornpensation tecliriiquc wcre further studicd on a circuit model. The cquations developed rcveal that tlicre is a gradual approach in excess of 10 cycles toward a steady state condition for higher levels of series compensation. The circuit niodcl rcvealed a harmonic instability that occurs whcn the thyristors arc fired in a \"quasi-resonant\" region, which rcsults in unpredictable circuit beliavior.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"57 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":"128407107","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}
引用次数: 0
Intelligent alarm processing in control centers 控制中心智能报警处理
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673930
Z. Vale, A. Moura
{"title":"Intelligent alarm processing in control centers","authors":"Z. Vale, A. Moura","doi":"10.1109/APT.1993.673930","DOIUrl":"https://doi.org/10.1109/APT.1993.673930","url":null,"abstract":"Control Center supervise, nionitor : i ~ i t l coi~trol Power Systems. I n order lo :iccoinplisIi these tasks, tlicir operators must intcrpict : i h n l i s t s t h a t i i i f t ) rn i tlicni : i l x i u t important occurrences in llic Power Systcni. 'r'liis is csl)ccinlly diflicult i n case ol' tlislui-lxinccs wlicn scvcr:iI Iiundrcd :ilnrins inay I)c rcccivctl i i i cc;~cIi iiiiniitc. 'lliis p:ipcr prcscnls :in Iiilclligciit A1:irui Processor for Portuguese Control Centers. 'Phis syslcni inclutlcs an Iiilcrcncc Engine cspcci:tlly dcvclopcd for lliis :rpplic:ltion. It tlc:ils with the rcquirccl tcinpor:iI a i i d non nionotonic reasoning i n an origiiiol :incl el'licicnt way. Tlic systcul ))roviJcs :I very fricuclly graphic user irilcrliicc. Explanalion fltcilitics allow its iisc :IS :i tutor for training purposes.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"39 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":"115879493","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}
引用次数: 5
An Algorithm for Dynamic State Estimation and Bad Data Analysis Using a Square Root Filtering Technique 一种基于平方根滤波技术的动态估计和不良数据分析算法
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686882
I. Ferreira, F. Barbosa
{"title":"An Algorithm for Dynamic State Estimation and Bad Data Analysis Using a Square Root Filtering Technique","authors":"I. Ferreira, F. Barbosa","doi":"10.1109/APT.1993.686882","DOIUrl":"https://doi.org/10.1109/APT.1993.686882","url":null,"abstract":"In the last few years we have been faced with an increasing complexity and inteidcpcndcncc of electric Ixlwer systems ancl as a result Uieir security assessnient and control became increasirigly inipoitant. In rcal time power system monitoring, tlie supervisory control and data acquisition system (SCAUA) arc rcspnsiblc lor gathering cyclically all of the analog measurements and breaker psilions from Uie electrical network undcr surveiliancc.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"149 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":"115985153","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}
引用次数: 6
Electron Avalanche Mechanism in the Pressboard-insulating Oil Combination, in Power Applications 压板-绝缘油组合中的电子雪崩机制，在电源中的应用
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686845
A. Moronis, P. Bourkas, C. Dervos, C.A. Kagarakis
{"title":"Electron Avalanche Mechanism in the Pressboard-insulating Oil Combination, in Power Applications","authors":"A. Moronis, P. Bourkas, C. Dervos, C.A. Kagarakis","doi":"10.1109/APT.1993.686845","DOIUrl":"https://doi.org/10.1109/APT.1993.686845","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"41 1 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":"116729182","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}
引用次数: 0
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