发布求助
文献互助 智能选刊 最新文献

[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference最新文献

筛选
英文 中文
Cost justification of the new Ohio Edison Company's energy management system 新俄亥俄爱迪生公司能源管理系统的成本论证
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160627
A. Jamshidi, E. Stein, B. Hoveida, J. Robinson
{"title":"Cost justification of the new Ohio Edison Company's energy management system","authors":"A. Jamshidi, E. Stein, B. Hoveida, J. Robinson","doi":"10.1109/PICA.1991.160627","DOIUrl":"https://doi.org/10.1109/PICA.1991.160627","url":null,"abstract":"A systematic method for analyzing alternative strategies that the Ohio Edison (OE) Company used during the feasibility study of its energy management system (EMS) is discussed. A key element in the requirements study of an EMS is determining the value of not only the present system, but also of several feasible alternatives in terms of present worth dollars. The term value represents the difference between a system's benefits (or the loss of those benefits) and its cost. When the values of various alternatives are compared over time with that of the existing system, the most cost-effective point for system replacement can be accurately defined along with the best alternative.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126849880","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
A linear recursive bad data identification method with real-time application to power system state estimation 一种实时应用于电力系统状态估计的线性递归坏数据辨识方法
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160609
Boming Zhang, S. Y. Wang, N. Xiang
{"title":"A linear recursive bad data identification method with real-time application to power system state estimation","authors":"Boming Zhang, S. Y. Wang, N. Xiang","doi":"10.1109/PICA.1991.160609","DOIUrl":"https://doi.org/10.1109/PICA.1991.160609","url":null,"abstract":"The recursive measurement error estimation identification (RMEEI) method for bad data (BD) analysis is described. By using a set of linear recursive formulae, state variables, residuals, and their variances are updated after the removal of a measurement from suspected data set to the remaining data set (or in the reverse direction). Neither a reestimation nor residual sensitivity matrix is needed in the identification process, which increases the computational speed greatly. Digital tests have been done to compare the RMEEI method with other conventional BD identification method in identification performance and computational speed. The real-time operation experience of the RMEEI method in energy management system (EMS) of the North East China power system control center is given.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132727970","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: 46
Monitoring for geomagnetic induced current flow effects using existing EMS telemetering 利用现有的EMS遥测技术监测地磁感应电流效应
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160652
J. Wrubel
{"title":"Monitoring for geomagnetic induced current flow effects using existing EMS telemetering","authors":"J. Wrubel","doi":"10.1109/PICA.1991.160652","DOIUrl":"https://doi.org/10.1109/PICA.1991.160652","url":null,"abstract":"During the solar magnetic disturbance (SMD) of March 13, 1989, which resulted in large-magnitude geomagnetic induced currents (GIC) in North America, it is believed that two phases of one of the generator step-up transformers at the Public Service Electric and Gas Company (PSE&G) Salem Generating Station were damaged. Subsequent to this event, a new application program was written on PSE&G's control center energy management system (EMS) to monitor the transformers at Salem and other locations in its bulk power system for the effect of GIC flows. This monitor has successfully and accurately detected subsequent SMD-caused GIC effects in the transformers in both the Salem and Hope Creek generating stations. In turn, these measurements are used to alert the control center and generating station personnel to the hazard so that corrective action may be initiated.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"247 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114629066","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
Fault identification in an AC-DC transmission system using neural networks 基于神经网络的交直流输电系统故障识别
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160590
N. Kandil, V. Sood, K. Khorasani, R. Patel
{"title":"Fault identification in an AC-DC transmission system using neural networks","authors":"N. Kandil, V. Sood, K. Khorasani, R. Patel","doi":"10.1109/PICA.1991.160590","DOIUrl":"https://doi.org/10.1109/PICA.1991.160590","url":null,"abstract":"The possibility of using neural networks to identify faults that may have occurred in an AC-DC power system is explored. Based on the ability of these networks to distinguish reliably between different types of fault, appropriate control measures can be taken to improve the dynamic performance of the AC-DC power system. Three different neural network architectures to distinguish between different types of fault on the AC-DC system are proposed, and a comparison between them is made.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122936557","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: 102
A multiprocessor digital signal processing system for real-time power converter applications 用于实时功率变换器的多处理器数字信号处理系统
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160653
Y. Guo, H.C. Lee, X. Wang, B. Ooi
{"title":"A multiprocessor digital signal processing system for real-time power converter applications","authors":"Y. Guo, H.C. Lee, X. Wang, B. Ooi","doi":"10.1109/PICA.1991.160653","DOIUrl":"https://doi.org/10.1109/PICA.1991.160653","url":null,"abstract":"The design of a multiprocessor digital signal processing system for applications in power converters such as those that would be used in the next generation of high-voltage DC (HVDC) and static VAr compensator (SVC) systems is described. The system incorporates three high-speed digital signal processors operating independently in parallel, but communicating with one another. The fully programmable system is a powerful device which can implement sophisticated control algorithms in real time for converters. A prototype operating at a clock frequency of 40 MHz has been built for testing and evaluation of control strategies with a laboratory model of an experimental HVDC system based on pulsewidth modulation (PWM). The results from an application demonstrate that the design is well suited for real-time digital control of converters and the system is a useful tool for research and development.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133381761","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
Critically coupled algorithms for solving the power flow equation 求解潮流方程的临界耦合算法
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160620
P. Crouch, D. Tylavsky, H. Chen, L. Jarriel, R. Adapa
{"title":"Critically coupled algorithms for solving the power flow equation","authors":"P. Crouch, D. Tylavsky, H. Chen, L. Jarriel, R. Adapa","doi":"10.1109/PICA.1991.160620","DOIUrl":"https://doi.org/10.1109/PICA.1991.160620","url":null,"abstract":"Two new algorithms for solving the power flow equation are presented. The algorithms are modifications of the BX and XB algorithms, obtained by explicitly treating lines with high r/x ratios. An analytical justification of the algorithm is given together with test results comparing the performance of the new algorithms with that of the Newton algorithm, the constant Jacobian quasi-Newton algorithm and the BX and XB algorithms. The test results indicate that the new algorithms have greatly increased robustness properties over the BX and XB algorithms.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121595961","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: 18
An adaptive scheme for digital protection of power transformers 一种电力变压器数字保护的自适应方案
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160643
A. Girgis, D. Hart, W. B. Chang
{"title":"An adaptive scheme for digital protection of power transformers","authors":"A. Girgis, D. Hart, W. B. Chang","doi":"10.1109/PICA.1991.160643","DOIUrl":"https://doi.org/10.1109/PICA.1991.160643","url":null,"abstract":"The development of an adaptive scheme for digital differential protection of power transformers is presented. The transformer status is monitored to decide if the transformer is disconnected or is in normal operating condition. When the transformer is energized, a two-state Kalman filter model monitors the transformer during normal operating conditions. When a transient is detected, a three-state Kalman filter model is initiated to obtain the best estimate of the phasor quantities in the shortest period of time. These phasors are used to decide if a fault in the transformer exists. If the transformer was disconnected and switched on, the current waveform would include inrush current or a combination of inrush and fault currents. In this case, a five-state Kalman filter model is initiated to obtain the best estimates of the DC offset, fundamental, and second harmonic phasors. The current transformer ratios and tap values are included in the algorithm to obtain an adaptive percentage differential characteristic. This adaptive scheme was tested on data obtained in the laboratory and proved to be highly accurate and fast.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"7 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114105413","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: 26
Knowledge based alarm handling and fault location in distribution networks 基于知识的配电网告警处理与故障定位
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160601
F. Eickhoff, E. Handschin, W. Hoffmann
{"title":"Knowledge based alarm handling and fault location in distribution networks","authors":"F. Eickhoff, E. Handschin, W. Hoffmann","doi":"10.1109/PICA.1991.160601","DOIUrl":"https://doi.org/10.1109/PICA.1991.160601","url":null,"abstract":"A knowledge-based system for fault analysis in the area of medium voltage distribution networks is described. It is based on an expert system shell especially developed for applications in the field of power supply. Applications like contingency analysis or corrective switching have been recently realized. The solution for fault analysis attaches great importance to portability, integration of different protection relay types, and capability of working with small information about the electrical network and the triggering of the protection devices.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"5 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131917935","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: 53
Power system restoration incorporating interactive graphics and optimization 结合交互式图形和优化的电力系统恢复
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160633
J. A. Huang, F. Galiana, G. Vuong
{"title":"Power system restoration incorporating interactive graphics and optimization","authors":"J. A. Huang, F. Galiana, G. Vuong","doi":"10.1109/PICA.1991.160633","DOIUrl":"https://doi.org/10.1109/PICA.1991.160633","url":null,"abstract":"A new power system restoration planning methodology which incorporates interactive graphics and an optimization algorithm is presented. The interactive graphics provides a tool to define restoration scenarios, view the restoration process, and display the optimization and simulation results. By introducing the concept of optimal restoration scenario, the process of selecting the control variables can be formulated as a mathematical problem which can be solved by nonlinear programming. This approach removes most of the guesswork found in conventional restoration planning and provides a systematic and optimal solution in the sense of minimizing the variations from normal, and the number of control variable adjustments from stage to stage. The optimization reduces the duration of the restoration procedure and guarantees the security of all variables during the restoration process by respecting all steady-state operating constraints.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128328969","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: 15
Handling discardable measurements in power system state estimation 处理电力系统状态估计中可丢弃的测量
[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference Pub Date : 1991-05-07 DOI: 10.1109/PICA.1991.160612
A. Monticelli, A.V. Garcia, I. Slutsker
{"title":"Handling discardable measurements in power system state estimation","authors":"A. Monticelli, A.V. Garcia, I. Slutsker","doi":"10.1109/PICA.1991.160612","DOIUrl":"https://doi.org/10.1109/PICA.1991.160612","url":null,"abstract":"Observability analysis based exclusively on topological information may lead to systems whose state cannot be estimated by regular state estimation methods. Some practical situations in which the presence of the so-called discardable measurements may pass undetected by topological observability analysis are discussed. As a consequence, wrong results, or even convergence problems, may occur. A numerically based observability analysis procedure is suggested for handling such cases; the new technique is an extension of previously published work on numerical observability analysis. The technique is fully illustrated by small scale examples taken from a real-life system where difficulties with discardable measurements have been observed.<<ETX>>","PeriodicalId":287152,"journal":{"name":"[Proceedings] Conference Papers 1991 Power Industry Computer Application Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114228671","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信