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2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)最新文献

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Dynamic eigenvalue analysis of a self-excited induction generator feeding an induction motor 自励感应发电机馈入感应电动机的动态特征值分析
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-12-01 DOI: 10.1109/PESW.2001.917296
S. Kuo, Li Wang
{"title":"Dynamic eigenvalue analysis of a self-excited induction generator feeding an induction motor","authors":"S. Kuo, Li Wang","doi":"10.1109/PESW.2001.917296","DOIUrl":"https://doi.org/10.1109/PESW.2001.917296","url":null,"abstract":"This paper presents both transient responses and dynamic stability of an isolated self-excited induction generator (SEIG) supplying an induction motor load. The d-q axis small-signal induction-machine models based on stationary and synchronously rotating reference frames are employed to calculate system eigenvalues versus time under different operating conditions. A nonlinear magnetizing curve of the studied SEIG is represented by an arctangent continuous function to replace piecewise linear approximations or a polynomial, and the cross saturation effect in the SEIG can be easily included. From the analyzed results, the proposed method can give a clear investigation on system dynamic behavior from the viewpoint of small-signal stability. The experimental results obtained from laboratory induction machines confirm the validity of the proposed approach.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126441820","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
Development and test of world's first industrial high temperature superconducting (HTS) power cable 世界上第一条工业用高温超导电力电缆的研制与试验
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-02-15 DOI: 10.1109/PESW.2001.916882
U. Sinha, D. Lindsay, R. Hughey, J. Stovall, M. Gouge, J. Lue, P. Haldar, V. Selvamanickam, N. Vo
{"title":"Development and test of world's first industrial high temperature superconducting (HTS) power cable","authors":"U. Sinha, D. Lindsay, R. Hughey, J. Stovall, M. Gouge, J. Lue, P. Haldar, V. Selvamanickam, N. Vo","doi":"10.1109/PESW.2001.916882","DOIUrl":"https://doi.org/10.1109/PESW.2001.916882","url":null,"abstract":"Southwire Company has installed the world's first industrial high-temperature superconducting cable system to power three of its main manufacturing plants. The cable consists of three single-phase, 30 m long cables designed to carry 1250 A at 12.4 kV. The cable is cooled by a liquid nitrogen (LN) system that can supply LN at sub-cooled temperatures down to 72 K and at pressures up to 15 atmospheres. The design of the 30 m cables is based upon two 5 m cable prototypes, which were tested at a specially developed facility at ORNL. In addition to critical current and AC loss measurements, simulated fault-current tests were performed at ORNL on the 5 m cables. Cable terminations were designed to allow smooth transition from the cryogenic temperature and pressure environment of the HTS cable to ambient temperature and pressure for copper cables. A dielectric tape material, Cryoflex/sup TM/ was also developed for use at cryogenic temperatures.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127913164","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: 8
Statistical evaluation of lightning overvoltages on overhead distribution lines using neural networks 架空配电线路雷电过电压的神经网络统计评价
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.917231
J.A. Martinez, F. Gonzalez-Molina
{"title":"Statistical evaluation of lightning overvoltages on overhead distribution lines using neural networks","authors":"J.A. Martinez, F. Gonzalez-Molina","doi":"10.1109/PESW.2001.917231","DOIUrl":"https://doi.org/10.1109/PESW.2001.917231","url":null,"abstract":"The evaluation of the lightning performance of overhead distribution lines, usually characterized by a flashover rate, can be a hard and long task due to the random nature of the lightning phenomenon, this evaluation is generally based on statistical calculations. The application of a neural network can shorten the flashover rate calculation. This paper presents a summary of the work performed by the authors to analyze the lightning performance of unshielded overhead distribution lines using neural networks. The document includes a discussion on the advantages and limitations of the developed approach.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115675623","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
Application of tabu search to optimal placement of distributed generators 禁忌搜索在分布式发电机优化配置中的应用
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.916995
K. Nara, Y. Hayashi, K. Ikeda, Tomoo Ashizawa
{"title":"Application of tabu search to optimal placement of distributed generators","authors":"K. Nara, Y. Hayashi, K. Ikeda, Tomoo Ashizawa","doi":"10.1109/PESW.2001.916995","DOIUrl":"https://doi.org/10.1109/PESW.2001.916995","url":null,"abstract":"Distributed generators (DGs) such as fuel cells, solar cells, wind mills and micro gas turbines, etc. are going to be installed on the demand side of power systems. Such distributed generators can reduce distribution loss if they are placed appropriately in the distribution system. In this paper, a tabu search application for finding the optimal allocation of DGs from a viewpoint of loss minimization is illustrated. In other words, the authors discuss about an implementation method of tabu search to find how much distribution loss can be reduced if DGs are optimally allocated at the demand side of a power system. Namely, locations and discrete capacities of DGs to minimize the distribution loss are determined by nested use of the tabu search algorithm. Numerical examples are shown to demonstrate the method.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116892816","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: 404
TCSC as a transient voltage stabilizing controller TCSC作为一种暂态稳压控制器
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.916922
Garng M. Huang, Tong Zhu
{"title":"TCSC as a transient voltage stabilizing controller","authors":"Garng M. Huang, Tong Zhu","doi":"10.1109/PESW.2001.916922","DOIUrl":"https://doi.org/10.1109/PESW.2001.916922","url":null,"abstract":"TCSC has been proposed to enhance the voltage stability by changing the reactive power distribution in the power system. The authors have discussed the effect of TCSC on steady state voltage stability and small-signal voltage stability. This paper discusses the TCSC's enhancement on transient voltage stability. A TCSC model that is suitable for transient voltage stability analysis is proposed. This model is tested on a multi-machine system including all the key elements relevant to system voltage performance. The simulation shows that angle-stability-enhancement-like TCSC controllers offer little help for certain transient voltage stability crises. Based on this analysis, a new TCSC controller is proposed and proved to enhance the transient voltage stability.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127502378","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: 32
Control of capacitor commutated converters in long cable HVDC-transmission 长电缆高压直流输电中电容整流变换器的控制
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.917003
M. Meisingset, A. Gole
{"title":"Control of capacitor commutated converters in long cable HVDC-transmission","authors":"M. Meisingset, A. Gole","doi":"10.1109/PESW.2001.917003","DOIUrl":"https://doi.org/10.1109/PESW.2001.917003","url":null,"abstract":"HVDC transmission over long distances is becoming more common, partly due to the deregulated environment in the electricity industry. The capacitor commutated converter (CCC) is a new type of HVDC converter topology which shows promise for use in long distance transmission via cables. This technology is, thus, a potential candidate for use in HVDC transmission across large bodies of water. Several HVDC-connections with cable lengths of about 600 km are currently in the planning stage in Northern Europe. This paper proposes two possible control options for such extremely long cable HVDC-connections. The suitability of these control alternatives in a CCC-inverter based HVDC-scheme terminating in a weak AC-network, is investigated using electromagnetic transient simulation.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124846124","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
Applicability of multi-protocol label switching technology to electric power utility backbone networks 多协议标签交换技术在电力公用事业骨干网中的适用性
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.917325
F. Fujikawa
{"title":"Applicability of multi-protocol label switching technology to electric power utility backbone networks","authors":"F. Fujikawa","doi":"10.1109/PESW.2001.917325","DOIUrl":"https://doi.org/10.1109/PESW.2001.917325","url":null,"abstract":"In electric power utility networks, ATM technology is necessary in the field when transmission quality is important, while IP technology is required when the cost of equipment is important. This paper describes factors to be considered in the configuration of such networks in which MPLS (multi-protocol label switching), acknowledged as the technology enabling ATM networks and IP networks to coexist, is applied. In this study, the authors examine ways to achieve in MPLS networks a transmission quality similar to that of ATM networks connected to MPLS networks. They show a switch fabric that reduces ATM cell delay in MPLS networks in which ATM cells and IP packets are mixed, and also IP traffic transmitted from multiple points such as substations to MPLS networks, routed effectively in MPLS networks. In addition, they propose a migration method from existing backbone networks configured in ATM or IP networks to MPLS networks.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125120109","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 efficient topology processor for distribution systems 配电系统的高效拓扑处理器
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.916971
Ying He, D. Yu, Y. Deng, J. Lei
{"title":"An efficient topology processor for distribution systems","authors":"Ying He, D. Yu, Y. Deng, J. Lei","doi":"10.1109/PESW.2001.916971","DOIUrl":"https://doi.org/10.1109/PESW.2001.916971","url":null,"abstract":"In modern distribution control centers, the topology processor plays a critical role in a number of functions, including the state estimation, power flow, network reconfiguration, etc. Since the distribution system has a very large and complicate configuration, which is subject to frequent changes due to maintenance and emergency operation, it is desirable to develop an efficient topology processor for distribution systems. This paper presents an efficient topology processor. Based on a well-defined data structure, the proposed algorithm can deal with topology changes quite quickly using only local updating procedure to track the network connectivity. The test results of applying this topology processor to a real world Chinese distribution system with more than 8000 nodes indicate the efficiency of the proposed method.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126865416","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: 19
Fast on-line voltage security monitoring using synchronized phasor measurements and decision trees 使用同步相量测量和决策树的快速在线电压安全监测
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.917282
R. Nuqui, A. Phadke, R. Schulz, N. Bhatt
{"title":"Fast on-line voltage security monitoring using synchronized phasor measurements and decision trees","authors":"R. Nuqui, A. Phadke, R. Schulz, N. Bhatt","doi":"10.1109/PESW.2001.917282","DOIUrl":"https://doi.org/10.1109/PESW.2001.917282","url":null,"abstract":"This paper presents the results of a study for an online voltage security monitoring system in AEP. It is designed to work inside the control center with phasor measurement units (PMUs) providing the synchronized real-time measurements. Classification type decision tree (DT) models are utilized to predict voltage security status. Fast and direct measurement from PMUs combined with decision trees quickly assesses voltage security, leaving more time for corrective or preventive actions. Two attributes are considered in the decision tree models: generator VArs and angular difference. Both are observed to be good indicators of voltage security status. The paper focuses on the angle difference attributes because bus voltage angle is directly measured by the PMUs. A stressed power system is characterized by widening angular separation of bus voltage angles as it moves towards voltage insecurity. DTs exploit the complex nonlinear relationship between voltage security status and generator VArs/angular difference in terms of hierarchical rules extracted from a large number of offline loadflow simulations. Several DT models were analyzed using the existing PMUs, and in the future when additional PMUs are incrementally installed. A PMU placement technique is discussed to determine the critical locations of new PMUs. The voltage security monitoring system was tested on a 360-bus subsystem inside AEP.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122617274","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: 69
A multi-agent system for power system restoration 电力系统恢复的多智能体系统
2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194) Pub Date : 2001-01-28 DOI: 10.1109/PESW.2001.917285
T. Nagata, H. Sasaki
{"title":"A multi-agent system for power system restoration","authors":"T. Nagata, H. Sasaki","doi":"10.1109/PESW.2001.917285","DOIUrl":"https://doi.org/10.1109/PESW.2001.917285","url":null,"abstract":"This paper proposes a multi-agent approach to power system restoration. The proposed system consists of several bus agents (BAGs) and a single facilitator agent (FAG). A BAG is developed to decide a sub-optimal target configuration after faults occur by interacting with other BAGs, while a FAG is developed to act as a manager for the decision process. The interaction of several simple agents leads to a dynamic system allowing efficient approximation of a solution. It is shown from simulation results that this method is able to obtain sub-optimal target configurations which are the same as ones obtained by a mathematical programming approach.","PeriodicalId":253534,"journal":{"name":"2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122090623","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: 16
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