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

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Integrated Digital Power Transformer Protection 集成数字电力变压器保护
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686860
B. Grear, D. Dolinar, J. Pihler
{"title":"Integrated Digital Power Transformer Protection","authors":"B. Grear, D. Dolinar, J. Pihler","doi":"10.1109/APT.1993.686860","DOIUrl":"https://doi.org/10.1109/APT.1993.686860","url":null,"abstract":"In the paper the hardware and software prototype realisation of the integrated digital three-phase power transformer protection for selective operation with all kinds of short circuits, ground faults and turn-to-turn faults is presented. The proposed integrated protection concept was developed on the basis of a nonlinear mathematical transformer model which includes nonlinear effects of saturation, hysteresis and eddy currents. The protection algorithm includes a percentage differential relay with harmonic restraint at inrush and overexcitation conditions, an overcurrent relay with instantaneous and time-lag operation, a sensitive relay for selective operation at high-impedance ground faults and a fault recorder. The protection algorithm was implemented on powerful signal processor. Presented are the results of real-time laboratory and field testing which include the comparison of the standard static protection performance with the proposed digital one in relation to speed and accuracy.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"98 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":"115718977","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: 14
A Practical Approach To Evaluating The Marginal Outage Costs In Generating Systems 发电系统边际停电成本评估的实用方法
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673902
R. Billinton, R. Ghajar
{"title":"A Practical Approach To Evaluating The Marginal Outage Costs In Generating Systems","authors":"R. Billinton, R. Ghajar","doi":"10.1109/APT.1993.673902","DOIUrl":"https://doi.org/10.1109/APT.1993.673902","url":null,"abstract":"( i h s t r n c t This paper presents a fornialized and p ra c t i ca I iii a r gi n a I outage costs in generating systems for the piirposes o f spot pricing. The proposed iiictliod Involves cstiniating tlic economic costs incurred by custoniers due to various outage lcvcls aiid the cffccts of load cliangcs on the probabilit ics that these costs will actually be incurred. The utilization of tiie proposed nietliod I n calciilating the marginal outage costs of a slngle generating system Is i l lustrated using the I E E E -Rel iabi l i ty Test Systein. A nuniber o f si i n pl i fy i n g assu i n p ti on s a re a Iso d i sc ussctl i n tli is p:ipcr i n order to sliow how the proposed iiicthod can I)c tailorcd to practical systeni applications. Tlic b:1sic nlct l lodology i s tl1cn cxtencled to two i II t cr con nect cd genera t iiig s ys tcm s i n ordcr to show the iinpact of capacity assistance on the iiiargiiial on1age cost. a p p roach for ca Icu 1 a t i 11 g t 11 c","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"11 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":"114719770","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
Impact of turbine fast-valving on generator and transformer protective relays 汽轮机快阀对发电机和变压器保护继电器的影响
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673892
B. Delfino, G. Denegri, P. Pinceti, R. Marconato, P. Scarpellini
{"title":"Impact of turbine fast-valving on generator and transformer protective relays","authors":"B. Delfino, G. Denegri, P. Pinceti, R. Marconato, P. Scarpellini","doi":"10.1109/APT.1993.673892","DOIUrl":"https://doi.org/10.1109/APT.1993.673892","url":null,"abstract":"O n e of tlie most effective niethod to preserve g e n e r a t o r s t ab i l i t y following close-in th ree -phase f a u l t s is t he so cal led \"fast-valving\" of t h e turbine. 'i'liis action may cause one o r more pole s l i p p i n g s of t l i e g e n e r a t o r b e f o r e r e synchronizing. T h e pape r is a imed to investigate, by tne fns of co inpu te r s i inulat ions o f both tlie power sys t em a n d i t s p ro t ec t ive devices , t h e p os s i I) I e a n 3 I y si s of t he resul ts allows to pu t into evidence wliat re lays a r e likely to ope ra t e d u r i n g pole-slipping, a n d what k ind of coun te r -measu res have to be s tudied to avoid unwished trippings. p ro t e c t ion 111 a Io p e r a t ions. 1' he","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"16 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":"123521253","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
Agricultural Industrial Power Quality Model 农业工业电能质量模型
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673915
D. Koval, J. Leonard
{"title":"Agricultural Industrial Power Quality Model","authors":"D. Koval, J. Leonard","doi":"10.1109/APT.1993.673915","DOIUrl":"https://doi.org/10.1109/APT.1993.673915","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"15 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":"121915694","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
Voltage Collapse Investigations with Time-Domain Simulation 电压崩溃时域仿真研究
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686898
R.J. Koessler, J. Feltes
{"title":"Voltage Collapse Investigations with Time-Domain Simulation","authors":"R.J. Koessler, J. Feltes","doi":"10.1109/APT.1993.686898","DOIUrl":"https://doi.org/10.1109/APT.1993.686898","url":null,"abstract":"","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":"129059435","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: 4
An Approach to Controlling Voltage Instabilities in Large-Scale Power Systems 一种大型电力系统电压不稳定控制方法
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686872
R. Thomas, E. Sakk
{"title":"An Approach to Controlling Voltage Instabilities in Large-Scale Power Systems","authors":"R. Thomas, E. Sakk","doi":"10.1109/APT.1993.686872","DOIUrl":"https://doi.org/10.1109/APT.1993.686872","url":null,"abstract":"Several researchers have dealt with the problem of voltage collapse as a loss of equilibria or by noting the singularity of the Jacobian at the onset of the phenomenon. In these cases the problem is characterized as a quasi-static bifurcation occuring in response to a slowly varying increase or decrease in load. However, dynamic load characteristics have long been known to have an effect on system stability and in fact, assumptions about the load model will significantly affect any predictions. In this paper, we discuss voltage stabilities as a function of the load model. We investigate the stability characteristics of a simple basic configuration consisting of a generator, a static load, and an aggregate dynamic representation. We then describe an approach to controlling voltage dynamics by using a simple representation of a static VAr compensator as the control mechanism and applying a pointwise control strategy as the algorithm for implementing the control.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"71 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":"131304389","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
The application of Newton's method to minimal emissions power flow 牛顿法在最小排放潮流中的应用
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673889
J. Talaq, F. el-Hawary, M. El-Hawary
{"title":"The application of Newton's method to minimal emissions power flow","authors":"J. Talaq, F. el-Hawary, M. El-Hawary","doi":"10.1109/APT.1993.673889","DOIUrl":"https://doi.org/10.1109/APT.1993.673889","url":null,"abstract":"Convcntional dispatch of clcctric power generation is designed lo ni ini i i i iz t operational costs wliilc niccting equality and inequality cotis!raints rcprcscnting system rcqiiircnients. Transmission losscs may be iicglcctcd or approximated i n the forniulation. Including tlic c i i i i~~ io i i~ in tlic objective function or Lrcatingcmissions as systcni’s constraints hasbccn considcrcd in a numbcr of contributions. I’rcvious work in tlic arca used siniplc active powcr balance constraints eithcr ncglccting transniission 10s .cs or using approxiinate loss formulas. Tlic optimal power flow (OPF) considers no zpproxiiiiatiori to transiiiissioii losscs, siiicc it iiivolvcs minimizing an objcc!ivc function wliilc satislying the powcr systcrn flow equations and systcm iiicqu:ility constraints. In this pnpcr, the emissions function is considcrcd in the objcctivc function of the OI’F forniulation. Coniputational rcsults arc prescntcd involving an actual system and IEEE tcst systeiiis to tcst (lie","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"11 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":"125344962","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 Modern Energy Management System for the Control of the Hellenic Generation and Transmission System 用于控制希腊发电和输电系统的现代能源管理系统
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.686922
A. Rigos, T. Koronides, P. Charamoglis, J. Cachet
{"title":"A Modern Energy Management System for the Control of the Hellenic Generation and Transmission System","authors":"A. Rigos, T. Koronides, P. Charamoglis, J. Cachet","doi":"10.1109/APT.1993.686922","DOIUrl":"https://doi.org/10.1109/APT.1993.686922","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"10 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":"125433852","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: 11
An Approach to transient stability assessment by nonlinear dichtomous classification 一种非线性二分类暂态稳定评估方法
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673921
D.J. Sebajic, Y. Pao
{"title":"An Approach to transient stability assessment by nonlinear dichtomous classification","authors":"D.J. Sebajic, Y. Pao","doi":"10.1109/APT.1993.673921","DOIUrl":"https://doi.org/10.1109/APT.1993.673921","url":null,"abstract":"","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"21 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":"122990563","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
Optimal placement of static var compensators in power system for stability improvement 电力系统静态无功补偿器的优化配置以提高系统稳定性
Proceedings. Joint International Power Conference Athens Power Tech, Pub Date : 1993-09-05 DOI: 10.1109/APT.1993.673858
M. Golkar, D. Jalali, R. Berahmand-pour
{"title":"Optimal placement of static var compensators in power system for stability improvement","authors":"M. Golkar, D. Jalali, R. Berahmand-pour","doi":"10.1109/APT.1993.673858","DOIUrl":"https://doi.org/10.1109/APT.1993.673858","url":null,"abstract":"This paper presents a new method which applies the application of Genetic Algorithm as meta-heuristic optimization method for power system problems in distribution substations. With increase in load, any power system model suffers from disturbances. These disturbances effect the overall stability of the system. Criterias like voltage profile, power flows, losses tell us about the state of the system under study. Load flow analysis under study is capable of providing the insight of the system. Static var compensator is one of the methods and can be applied to obtain a system with least losses, increased power flow and healthy voltage profile. Number, location and size of Static var compensator are the main concerns and they can be optimized to a great extent by Genetic Algorithm. Use of Static var compensator in system has shown considerable increase in voltage profile and power flows while decrease in losses.","PeriodicalId":241767,"journal":{"name":"Proceedings. Joint International Power Conference Athens Power Tech,","volume":"100 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":"116103947","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
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