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IEEE Transactions on Power Apparatus and Systems最新文献

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An Efficient Line Ratings Program With Probabilistic Considerations for Real Time Operations 一种考虑实时运行概率的高效线路评级方案
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319141
B. Reed, J. Sherman, K. Hemmaplardh
{"title":"An Efficient Line Ratings Program With Probabilistic Considerations for Real Time Operations","authors":"B. Reed, J. Sherman, K. Hemmaplardh","doi":"10.1109/TPAS.1985.319141","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319141","url":null,"abstract":"Many utilities desire to widen their system operation margin through increasing transmission line loading while ensuring that the lines are not overloaded. It is impractical to monitor loading (via temperature) over the length of all transmission lines so many methods have been developed to estimate line temperatures. Estimate inaccuracies result from not knowing the weather conditions along all segments of the line; and from inaccuracies in empirical estimating equations. The statistical approach to safe line loading presented here associates confidence levels with maximum line temperatures for fixed, current and conversly associates confidence levels with currents for a safe line temperature. Steady state and transient operating conditions are considered. The methodology presented is useful and computationally efficient for automated power systems operations, as well as useful to design engineers.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115504520","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 Microcomputer Based Data Acquisition System for High Impedance Fault Analysis 基于微机的高阻抗故障分析数据采集系统
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/MPER.1985.5528687
Robert E. Lee, R. H. Osborn
{"title":"A Microcomputer Based Data Acquisition System for High Impedance Fault Analysis","authors":"Robert E. Lee, R. H. Osborn","doi":"10.1109/MPER.1985.5528687","DOIUrl":"https://doi.org/10.1109/MPER.1985.5528687","url":null,"abstract":"Investigation of High Impedance Faults has long held a high priority at Pennsylvania Power & Light Company (PP& L). The Ratio Ground Relay has been developed in conjunction with Westinghouse Electric Corporation's Advanced Systems Technology and Relay Instrument Divisions under PP&L sponsorship. As part of the research, six feeders were digitally modeled [1], one feeder was modeled on an analog computer [2], and staged fault tests [3] were conducted to gain data and observe relay operations under controlled conditions. Thorough development and analysis of the applicability of a new relaying technique requires long-term field testing. To ensure that the devices are performing according to design specifications, they must be monitored. This paper describes the analysis of four such monitoring schemes and discusses the unique application of commercially available home microcomputer equipment within the substation environment to automatically sample, record and transmit circuit data to a host microcomputer. It also describes the computer configuration, programming, and data transfer to the corporate mainframe computer. The Ratio Ground Relay and a conventional Ground Overcurrent Relay have been installed on one feeder from each of six substations to evaluate their performance during normal distribution system daily operation. The development of this unique microcomputer application is discussed in detail.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124088659","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 Methodology for Economic Evaluation of Distribution Automation 一种配电自动化经济评价方法
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/MPER.1985.5528713
W. Blair, J. Bunch, C. Gentz
{"title":"A Methodology for Economic Evaluation of Distribution Automation","authors":"W. Blair, J. Bunch, C. Gentz","doi":"10.1109/MPER.1985.5528713","DOIUrl":"https://doi.org/10.1109/MPER.1985.5528713","url":null,"abstract":"A methodology is described for evaluating the economic feasibility of automation of electric utility distribution systems. Approximately 40 distribution automation functions and subfunctions for the distribution substation, feeder primary, and secondary levels are vels are included with provision fortiondistribu- line carrier, radio, and telephone communication systems. The approach followed is determination of the present value and annual revenue requirements for alternative growth plans, with versus without distribution automation, over a study period of future years. Potential benefits of the functions are evaluated for their economic impact at the generation, transmission, and distribution levels of the utility system. Economic evaluation results are presented based on assumed implementation of selected functions.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124037103","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
Hydro-Quebec's Experience with the Design and Construction of 1500 KM of 735 KV Chainette Transmission Lines 魁北克水电公司1500公里735千伏链式输电线路的设计与施工经验
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-10-01 DOI: 10.1109/TPAS.1985.319127
E. Ghannoum, M. Lamarre
{"title":"Hydro-Quebec's Experience with the Design and Construction of 1500 KM of 735 KV Chainette Transmission Lines","authors":"E. Ghannoum, M. Lamarre","doi":"10.1109/TPAS.1985.319127","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319127","url":null,"abstract":"This paper deals with the design and construction experience that Hydro-Quebec acquired with 1500 km of 735 kV chainette lines already in service. The design features of this type of tower are discussed as well as the parameters of the chainette tower used on James Bay lines. Through the paper, the construction of the chainette tower is compared to the guyed V tower and the productivities of construction crews are discussed. Comparative material and construction costs are also detailed in the paper.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131961314","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
The Vaccum Fuse With Axial Magnetic Field For General Purpose Applicaitons 通用轴向磁场真空熔断器
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-09-01 DOI: 10.1109/TPAS.1985.318993
T. Tanaka, S. Kato, N. Takaoka, S. Suga, K. Ishihara, N. Kudo, K. Tsuruta
{"title":"The Vaccum Fuse With Axial Magnetic Field For General Purpose Applicaitons","authors":"T. Tanaka, S. Kato, N. Takaoka, S. Suga, K. Ishihara, N. Kudo, K. Tsuruta","doi":"10.1109/TPAS.1985.318993","DOIUrl":"https://doi.org/10.1109/TPAS.1985.318993","url":null,"abstract":"A highly advanced vacuum power fuse has been developed for general purpose protection in high voltage primary distribution systems.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115075778","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
The Effects of Power System Harmonics on Power System Equipment and Loads 电力系统谐波对电力系统设备和负荷的影响
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-09-01 DOI: 10.1109/MPER.1985.5526463
T. Ortmeyer, K. Chakravarthi, A. Mahmoud
{"title":"The Effects of Power System Harmonics on Power System Equipment and Loads","authors":"T. Ortmeyer, K. Chakravarthi, A. Mahmoud","doi":"10.1109/MPER.1985.5526463","DOIUrl":"https://doi.org/10.1109/MPER.1985.5526463","url":null,"abstract":"This report is intended to present a summary of current knowledge regarding the effects of power system harmonics on system equipment and loads. The purpose of this summary is two-fold: first, to lay a groundwork for the study and control of system harmonics; and second, to promote a discussion with those closely involved with each of the various load types.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116099229","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: 178
State Estimation for Integrated Multi-Terminal DC/AC Systems 集成多端直流/交流系统的状态估计
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-09-01 DOI: 10.1109/TPAS.1985.318957
A. P. A. D. Silva, G. Perrotta, R. Prada, D. Falcão
{"title":"State Estimation for Integrated Multi-Terminal DC/AC Systems","authors":"A. P. A. D. Silva, G. Perrotta, R. Prada, D. Falcão","doi":"10.1109/TPAS.1985.318957","DOIUrl":"https://doi.org/10.1109/TPAS.1985.318957","url":null,"abstract":"In the past few years, many papers have been published on state estimation applied to electric power systems. Different types of algorithms-static, tracking and dynamic-have been proposed aside with a variety of applications: detection and identification of bad data, network configurator, etc. Most of such studies have been carried out for AC systems, although there are some power systems around the world with DC links in operation. Moreover, engineers are now considering DC multiterminal networks as a feasible option. Therefore the state estimation techniques have to be extended to deal with such mixed AC/DC systems. So far, few papers have been published on this matter.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131952394","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: 17
Development of 275 KV EHV Class Gas-Insulated Power Transformer 275千伏超高压气体绝缘电力变压器的研制
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-09-01 DOI: 10.1109/TPAS.1985.318996
Y. Harumoto, Y. Kabayama, Y. Kuroda, Y. Yoshida, H. Kan, Y. Miura, E. Tamaki, T. Hakata
{"title":"Development of 275 KV EHV Class Gas-Insulated Power Transformer","authors":"Y. Harumoto, Y. Kabayama, Y. Kuroda, Y. Yoshida, H. Kan, Y. Miura, E. Tamaki, T. Hakata","doi":"10.1109/TPAS.1985.318996","DOIUrl":"https://doi.org/10.1109/TPAS.1985.318996","url":null,"abstract":"A 275kV SF6 gas-insulated prototype transformer has been developed and is now under a long term running test for the final technical establishment. Newly developed techniques for composite insulation, liquid cooling, gas pressure regulation, on-load tap-changer, etc. are utilized together with the established ones for the 77kV class gas-vapor cooled transformers, developed in 1981 and working in service since 1982. This paper presents the feasibility examinations, newly developed techniques and performance test results of the prototype transformer.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"44 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123374592","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: 24
Emergency Control Practices 紧急控制措施
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-09-01 DOI: 10.1109/tpas.1985.318955
L. Fink, D. Badley, J. Koehler, D. McInnis, O. H. Redmond
{"title":"Emergency Control Practices","authors":"L. Fink, D. Badley, J. Koehler, D. McInnis, O. H. Redmond","doi":"10.1109/tpas.1985.318955","DOIUrl":"https://doi.org/10.1109/tpas.1985.318955","url":null,"abstract":"The Emergency Control Task Force was formed in February 1982. In order to clarify and focus its efforts, the Task Force, as its first order of business and after considerable discussion, adopted the following definitions as a basis for its deliberations: Power System Emergency: A condition or state of system operation characterized by one or more violations of \"hard\" inequality constraints (e.g., short or long term emergency ratings) on the bulk power system. An emergency generally is an indication of a viability crisis and/or a stability crisis. A viability crisis results from an imbalance between generation, loads, and transmission, whether local or system-wide. A stability crisis results from energy accumulated at sufficient level in swings of the system to disrupt its integrity. Power System Failure: A condition or state of system operation characterized by loss of system integrity involving uncontrolled islanding (fragmentation) of the system and/or uncontrolled loss of large blocks of load.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127926342","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: 25
Validation of Digital Simulation of DC Links 直流链路数字仿真的验证
IEEE Transactions on Power Apparatus and Systems Pub Date : 1985-09-01 DOI: 10.1109/TPAS.1985.319024
D. Woodford
{"title":"Validation of Digital Simulation of DC Links","authors":"D. Woodford","doi":"10.1109/TPAS.1985.319024","DOIUrl":"https://doi.org/10.1109/TPAS.1985.319024","url":null,"abstract":"A project was undertaken to test the validity of the electromagnetic transients simulation of dc links using digital computer programs. The Nelson River dc transmission system of both Bipoles One and Two were modeled on the computer using Manitoba Hydro's EMTDC program. The well known Electromagnetic Transients Program EMTP was also used for small reduced system models. Results from actual system tests were used to compare with the computer simulation of the same test. Comparisons are also made between EMTDC and EMTP as simulation tools for studying dc transmission. Computer simulation of dc links is presented as a valid option to the use of real time hard wired simulators.","PeriodicalId":227345,"journal":{"name":"IEEE Transactions on Power Apparatus and Systems","volume":"317 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115746816","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: 58
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