In the last 10 years, computers have become part of every aspect of power system protection engineering. Multifunctional microprocessor-based relays with increasing complexity require the development and application of sophisticated computer software for the analysis, setting coordination, data acquisition and testing of such intelligent electronic devices (IEDs). Their functionality is modular and, at the same time, very specialized, as required by the protected substation or power system equipment. Conventional methods and test devices used for the testing of electromechanical protective relays are no longer adequate for the testing of advanced microprocessor relays.
{"title":"Automatic test system advances transformer protection","authors":"A. Apostolov, B. Vandiver","doi":"10.1109/67.831426","DOIUrl":"https://doi.org/10.1109/67.831426","url":null,"abstract":"In the last 10 years, computers have become part of every aspect of power system protection engineering. Multifunctional microprocessor-based relays with increasing complexity require the development and application of sophisticated computer software for the analysis, setting coordination, data acquisition and testing of such intelligent electronic devices (IEDs). Their functionality is modular and, at the same time, very specialized, as required by the protected substation or power system equipment. Conventional methods and test devices used for the testing of electromechanical protective relays are no longer adequate for the testing of advanced microprocessor relays.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132812451","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}
Si-qing Sheng, Youjiang Sun, Yan Liu, Wenqin Zhang, Yihan Yang
Power network faults may lead to blackouts in some areas. Dispatchers should accurately diagnose faulted elements as soon as possible and restore those areas to their normal state. The restoration of the blackout area in a distribution network is a complex nonlinear combinatorial optimization problem, which is to restore as much of the blacked out area as possible and not to lead to overload in the normal area. In view of the limitation of the conventional expert system (ES) based on rules for restoring a blacked out area, a new random adaptive optimizing method based on a genetic algorithm (GA) is applied to the restoration system of the distribution network.
{"title":"Random adaptive optimizer restores distribution service","authors":"Si-qing Sheng, Youjiang Sun, Yan Liu, Wenqin Zhang, Yihan Yang","doi":"10.1109/67.831429","DOIUrl":"https://doi.org/10.1109/67.831429","url":null,"abstract":"Power network faults may lead to blackouts in some areas. Dispatchers should accurately diagnose faulted elements as soon as possible and restore those areas to their normal state. The restoration of the blackout area in a distribution network is a complex nonlinear combinatorial optimization problem, which is to restore as much of the blacked out area as possible and not to lead to overload in the normal area. In view of the limitation of the conventional expert system (ES) based on rules for restoring a blacked out area, a new random adaptive optimizing method based on a genetic algorithm (GA) is applied to the restoration system of the distribution network.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127563765","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}
S. Gissinger, P. Chaumes, J. Antoine, A. Bihain, M. Stubbe
This article analyzes the modeling and describes the algorithmic breakthroughs and the use of parallel processing in power system dispatcher training simulation. The first industrial version of the FAST-DTS simulator (running a 400 node, 80 generator power system), with its advanced instructor and operator stations, is described and illustrated with various training scenarios. Principles used for the configuration and the compatibility with EUROSTAC (reference software dedicated to the dynamic simulation of power systems in the field of transient and long-term stability) and further developments are also discussed.
{"title":"Advanced dispatcher training simulator","authors":"S. Gissinger, P. Chaumes, J. Antoine, A. Bihain, M. Stubbe","doi":"10.1109/67.831425","DOIUrl":"https://doi.org/10.1109/67.831425","url":null,"abstract":"This article analyzes the modeling and describes the algorithmic breakthroughs and the use of parallel processing in power system dispatcher training simulation. The first industrial version of the FAST-DTS simulator (running a 400 node, 80 generator power system), with its advanced instructor and operator stations, is described and illustrated with various training scenarios. Principles used for the configuration and the compatibility with EUROSTAC (reference software dedicated to the dynamic simulation of power systems in the field of transient and long-term stability) and further developments are also discussed.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123982267","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}
This article discusses the implementation of an operational monitoring and fault diagnosis system (OMFDS) for a /spl plusmn/20 MVAr voltage-sourced STATCOM based on gate-turn-off thyristor (GTO). It well fulfills the purpose of real-time supervision, intelligent alarm handling, post-fault system analysis and gratifying man-machine interaction. The proposed system, with minor modification if needed, can also be applicable to other FACTS controllers or other power electronic devices.
{"title":"Real-time supervision for STATCOM installations","authors":"Xiaorong Xie, Wenhua Liu, H. Qian, Yingduo Han","doi":"10.1109/67.831428","DOIUrl":"https://doi.org/10.1109/67.831428","url":null,"abstract":"This article discusses the implementation of an operational monitoring and fault diagnosis system (OMFDS) for a /spl plusmn/20 MVAr voltage-sourced STATCOM based on gate-turn-off thyristor (GTO). It well fulfills the purpose of real-time supervision, intelligent alarm handling, post-fault system analysis and gratifying man-machine interaction. The proposed system, with minor modification if needed, can also be applicable to other FACTS controllers or other power electronic devices.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126347699","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}
Game theory is a discipline that is used to analyze problems of conflict among interacting decision makers. It may be considered as a generalization of decision theory to include multiple players or decision makers. Here, the author presents an introduction to game theory as well as its application to electric power market allocation problems.
{"title":"Introduction to game theory and its application in electric power markets","authors":"H. Singh","doi":"10.1109/67.795133","DOIUrl":"https://doi.org/10.1109/67.795133","url":null,"abstract":"Game theory is a discipline that is used to analyze problems of conflict among interacting decision makers. It may be considered as a generalization of decision theory to include multiple players or decision makers. Here, the author presents an introduction to game theory as well as its application to electric power market allocation problems.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115528227","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}
Designed and operated as a totally underground system for environmental and aesthetic reasons, underground cables are exclusively used in the Singapore transmission network at voltages up to 400 kV. Fully metal-clad sulphur hexaflouride (SF/sub 6/) gas insulated switchgear (GIS) is used at all transmission levels to circumvent land scarcity in the siting of substations. To maintain and ensure reliability and availability of transmission facilities, technologically advanced systems for protection, control, supervision, and online diagnostics are employed. These are: computer-based integrated substation protection and control monitoring systems, partial discharge measurement systems, and distributed temperature sensing systems. These systems are discussed in this paper.
{"title":"Controlling and monitoring Singapore's underground grid","authors":"K. Yoon, D.S.A. Teo","doi":"10.1109/67.795134","DOIUrl":"https://doi.org/10.1109/67.795134","url":null,"abstract":"Designed and operated as a totally underground system for environmental and aesthetic reasons, underground cables are exclusively used in the Singapore transmission network at voltages up to 400 kV. Fully metal-clad sulphur hexaflouride (SF/sub 6/) gas insulated switchgear (GIS) is used at all transmission levels to circumvent land scarcity in the siting of substations. To maintain and ensure reliability and availability of transmission facilities, technologically advanced systems for protection, control, supervision, and online diagnostics are employed. These are: computer-based integrated substation protection and control monitoring systems, partial discharge measurement systems, and distributed temperature sensing systems. These systems are discussed in this paper.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122291269","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}
The main objective of predictive reliability analysis is to quantify, predict and compare reliability indexes for various reliability improvement initiatives. This information helps engineers and managers at electric utility organizations decide how to spend reliability improvement dollars by identifying the most effective actions for improving reliability of distribution feeders. There are many types of system design and maintenance tasks that fall under the reliability improvement umbrella. The type of distribution reliability improvement software discussed here focuses on improvement initiatives that are both practical and economical to implement. Results can be implemented without altering the fundamental system design or philosophies currently in place. In other words, these are not radical departures from the current mode of business, but rather a fine-tuning of systems already in place to achieve a higher level of reliability.
{"title":"Predictive analysis ranks reliability improvements","authors":"C. Mccarthy, Haijun Liu","doi":"10.1109/67.795136","DOIUrl":"https://doi.org/10.1109/67.795136","url":null,"abstract":"The main objective of predictive reliability analysis is to quantify, predict and compare reliability indexes for various reliability improvement initiatives. This information helps engineers and managers at electric utility organizations decide how to spend reliability improvement dollars by identifying the most effective actions for improving reliability of distribution feeders. There are many types of system design and maintenance tasks that fall under the reliability improvement umbrella. The type of distribution reliability improvement software discussed here focuses on improvement initiatives that are both practical and economical to implement. Results can be implemented without altering the fundamental system design or philosophies currently in place. In other words, these are not radical departures from the current mode of business, but rather a fine-tuning of systems already in place to achieve a higher level of reliability.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127184064","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}
The authors describe how the Electric Power Research Institute (EPRI) commissioned an implementation and commercialization of a nonintrusive appliance load monitoring system (NIALMS) based on EPRI-developed intellectual property. The system determines the energy consumption of individual appliances being turned on and off within a whole building's electric load.
{"title":"Nonintrusive monitoring of electric loads","authors":"S. Drenker, A. Kader","doi":"10.1109/67.795138","DOIUrl":"https://doi.org/10.1109/67.795138","url":null,"abstract":"The authors describe how the Electric Power Research Institute (EPRI) commissioned an implementation and commercialization of a nonintrusive appliance load monitoring system (NIALMS) based on EPRI-developed intellectual property. The system determines the energy consumption of individual appliances being turned on and off within a whole building's electric load.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124717187","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}
The authors describe the California independent system operator (ISO) which uses a metering data acquisition system, scheduling infrastructure, scheduling applications, balance of business systems and a power management system.
{"title":"California ISO formation and implementation","authors":"F. Albuyeh, Z. Alaywan","doi":"10.1109/67.795135","DOIUrl":"https://doi.org/10.1109/67.795135","url":null,"abstract":"The authors describe the California independent system operator (ISO) which uses a metering data acquisition system, scheduling infrastructure, scheduling applications, balance of business systems and a power management system.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124114067","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}
Methods for iron loss reduction during manufacturing of wound-core distribution transformers are presented. More specifically, measurements taken at the first stages of core construction are effectively used, in order to minimize iron losses of transformer (final product). To optimally exploit the measurements (feedback), artificial intelligence methods are applied. It is shown that intelligent systems are able to learn and interpret several variations of the same conditions, thus helping in predicting iron losses with increased accuracy.
{"title":"AI helps reduce transformer iron losses","authors":"P. Georgilakis, N. Hatziargyriou, D. Paparigas","doi":"10.1109/67.795137","DOIUrl":"https://doi.org/10.1109/67.795137","url":null,"abstract":"Methods for iron loss reduction during manufacturing of wound-core distribution transformers are presented. More specifically, measurements taken at the first stages of core construction are effectively used, in order to minimize iron losses of transformer (final product). To optimally exploit the measurements (feedback), artificial intelligence methods are applied. It is shown that intelligent systems are able to learn and interpret several variations of the same conditions, thus helping in predicting iron losses with increased accuracy.","PeriodicalId":435675,"journal":{"name":"IEEE Computer Applications in Power","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124365119","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}
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