发布求助
文献互助 智能选刊 最新文献

2009 IEEE Power & Energy Society General Meeting最新文献

筛选
英文 中文
Detection tools for disturbances and protective relay operations leading to cascading events 用于导致级联事件的干扰和保护继电器操作的检测工具
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275533
C. Pang, M. Kezunovic
{"title":"Detection tools for disturbances and protective relay operations leading to cascading events","authors":"C. Pang, M. Kezunovic","doi":"10.1109/PES.2009.5275533","DOIUrl":"https://doi.org/10.1109/PES.2009.5275533","url":null,"abstract":"The power system cascading outage is quite often a complex phenomenon, which may finally result in a large area blackout. Detecting and preventing cascading blackouts is crucial to maintaining the power system reliability and security. This paper discusses implementation of a method used to detect the cascading events by coordinating the system-wide and substation-wide monitoring and control tools. The framework of the implementation is given first. The data requirements for the proposed system-wide and local substation algorithms are investigated in detail. Obtaining and handling data through integration of traditional Supervisory Control and Data Acquisition (SCADA) system and modern Intelligent Electronic Devices (IEDs) is outlined. Case studies based on a real power system model shows the proposed algorithms are feasible. These detection tools could work as decision-making support for system operators to deal with cascading event situations.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132692636","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: 7
Power systems reliability calculation based on fuzzy data mining 基于模糊数据挖掘的电力系统可靠性计算
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275783
S. Ramos, H. Khodr, F. Azevedo, Z. Vale
{"title":"Power systems reliability calculation based on fuzzy data mining","authors":"S. Ramos, H. Khodr, F. Azevedo, Z. Vale","doi":"10.1109/PES.2009.5275783","DOIUrl":"https://doi.org/10.1109/PES.2009.5275783","url":null,"abstract":"This paper presents a methodology supported on the data base knowledge discovery process (KDD), in order to find out the failure probability of electrical equipments', which belong to a real electrical high voltage network. Data Mining (DM) techniques are used to discover a set of outcome failure probability and, therefore, to extract knowledge concerning to the unavailability of the electrical equipments such us power transformers and high-voltages power lines. The framework includes several steps, following the analysis of the real data base, the pre-processing data, the application of DM algorithms, and finally, the interpretation of the discovered knowledge. To validate the proposed methodology, a case study which includes real databases is used. This data have a heavy uncertainty due to climate conditions for this reason it was used fuzzy logic to determine the set of the electrical components failure probabilities in order to reestablish the service. The results reflect an interesting potential of this approach and encourage further research on the topic.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132697980","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
Comprehensive analysis of load noise of power transformers 电力变压器负荷噪声综合分析
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275883
R. Girgis, M. Bernesjo, J. Anger
{"title":"Comprehensive analysis of load noise of power transformers","authors":"R. Girgis, M. Bernesjo, J. Anger","doi":"10.1109/PES.2009.5275883","DOIUrl":"https://doi.org/10.1109/PES.2009.5275883","url":null,"abstract":"This paper presents the following aspects of Load noise in power Transformers: (1) Characteristics of Load Noise, (2) Contribution of load noise to the total noise of a transformer and why it has not been well — recognized by the industry in USA and some other parts of the world, (3) Accurate calculation of load noise and the need for the accurate calculation, (4) Accurate measurement of load noise, (5) Magnitude of variability of load noise, (6) Parameters affecting load noise level and means to reduce load noise, and finally (7) Need for the inclusion of load noise in the IEEE Standards and customer specifications.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132706936","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
A novel approach on ATC determination for AC/DC transmission systems 交/直流输电系统ATC确定的新方法
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275482
N. Ji, Yajing Gao, Ming Zhou, Gengyin Li
{"title":"A novel approach on ATC determination for AC/DC transmission systems","authors":"N. Ji, Yajing Gao, Ming Zhou, Gengyin Li","doi":"10.1109/PES.2009.5275482","DOIUrl":"https://doi.org/10.1109/PES.2009.5275482","url":null,"abstract":"With the increasing expansion of AC/DC transmission system scale, the research on Available Transfer Capability (ATC) for AC/DC transmission systems has important academic and practical significances to AC/DC transmission system planning, operation and reliability evaluation. However, most of the present researches on the ATC calculation are only suitable for AC transmission system, few is about the ATC analysis for AC/DC systems. In this paper a novel ATC calculation model for AC/DC transmission systems is proposed, and alternate iterative continuation power flow algorithm is presented to solve this model. ATC of an AC/DC transmission system is computed considering the impacts of DC control system on ATC and compared to one of the AC system. The algorithm based on MATLAB6.5 is developed. The modified IEEE 14-bus test system is used to verify the presented approach.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131403706","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: 9
Renewable energy as a tool to assure continuity of a low emission Brazilian electric power sector — Results of an aggressive renewable energy policy 可再生能源作为确保低排放巴西电力部门连续性的工具-积极的可再生能源政策的结果
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275348
O. Pereira
{"title":"Renewable energy as a tool to assure continuity of a low emission Brazilian electric power sector — Results of an aggressive renewable energy policy","authors":"O. Pereira","doi":"10.1109/PES.2009.5275348","DOIUrl":"https://doi.org/10.1109/PES.2009.5275348","url":null,"abstract":"In April 2002, Brazilian Congress approved a law which created a stick and carrot policy (PROINFA) to push the development of renewable energy and also a compulsory full coverage. As regards to full coverage, by the end of 2004, Brazilian Electric Energy Regulating Agency (ANEEL) had established norms for the use of Individual Electric Energy Generation Systems through Intermittent Sources (SIGFI), increasing the number of available technology options for the electrification of rural market. Regular use of these systems can reduce the total investment of the bold program of universal access undertaken for the Brazilian government, calculated in US$ 3.3 billion. Universal access plan proposed by COELBA, Bahia's electricity utility, where there are more than 350 thousand non-electrified households, foresees the installation of 30.000 SHS. This new paradigm has started to be replicated among several other electricity companies over the Country.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133835543","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
Simulating demand participation in market operations 模拟需求参与市场运作
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275369
D. Chassin, S. Widergren
{"title":"Simulating demand participation in market operations","authors":"D. Chassin, S. Widergren","doi":"10.1109/PES.2009.5275369","DOIUrl":"https://doi.org/10.1109/PES.2009.5275369","url":null,"abstract":"Demand response and dynamic pricing programs are emerging in greater numbers as policy makers look for higher efficiencies and new mechanisms to integrate distributed resources into system operations. The behavior of demand-side resources (including distributed generation, storage, and load), their interaction with the power system, and their operating characteristics under different electric market scenarios raise many questions for system operators, market operators, and regulators. Computer simulation provides a powerful tool for investigating these issues. This paper discusses the use of GridLab-D as simulation environment to model the behavior of distributed resources in detail such that resources interact in new market environments while observing the physical constraints of system operation. GridLab-D provides an open source platform for integrating demand-side models with power system models and market operation models. The flexibility of this environment will be discussed as well as some of the findings emerging from having this simulation capability.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133722023","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
Bilateral negotiation of energy contracts from the buyer perspective 从买方角度谈能源合同的双边谈判
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5260230
J. C. Mateus, P. Cuervo
{"title":"Bilateral negotiation of energy contracts from the buyer perspective","authors":"J. C. Mateus, P. Cuervo","doi":"10.1109/PES.2009.5260230","DOIUrl":"https://doi.org/10.1109/PES.2009.5260230","url":null,"abstract":"In this study is presented a decision support model considering the perspective of a buyer who needs evaluating a basic set of contractual conditions. The approach recognizes that a potential new contract under negotiation introduces two main risks: One is related to the insufficiency of load supply (ILS) to end users. Other risk is related with the volatility of the short term spot prices used as a reference for defining the contractual price. Both of these risks are estimated based on the Monte Carlo method and payment minimization. Important characteristics of bilateral contracts like, the necessary modulation to compensate seasonal load variations and the flexibility margins are considered in the model. In case the risks levels are not acceptable, the model makes possible to evaluate a review in the previous conditions in a responsive manner. Results show that with this tool, agents have important information about the negotiated offers being able to clearly define margins of negotiation. These margins are based on the relationships between levels of risk and contractual conditions. The proposed tool is easy to implement and gives a strong support in the decision making process during negotiation of bilateral energy contracts.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"1435 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115189724","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
Approach on performance evaluation and index selection for electricity distribution utilities 配电企业绩效评价与指标选择方法
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275799
Ming Zhou, Weijun Zhai, Gengyin Li
{"title":"Approach on performance evaluation and index selection for electricity distribution utilities","authors":"Ming Zhou, Weijun Zhai, Gengyin Li","doi":"10.1109/PES.2009.5275799","DOIUrl":"https://doi.org/10.1109/PES.2009.5275799","url":null,"abstract":"Establishing an effective performance evaluation method and market driven incentive mechanism is an important subject that the electric power utilities are currently facing with. By aid of Data Envelopment Analysis (DEA) method which is widely used in other industries' performance evaluation, three DEA based models are proposed to evaluate electricity distribution utilities' performances, the relative efficiency scores are then given. In addition, the improvement schemes are presented for those relative less efficient utilities. At last, an approach of sensitivity analysis with respect to evaluation indices and a method to simplify evaluation indices are presented. The empirical study shows that the proposed performance evaluation method for electricity distribution utilities is effective and straightforward.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115554278","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: 3
Demand-side integration for customer choice through variable service subscription 通过可变服务订阅实现客户选择的需求侧集成
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5275910
A. Chuang, C. Gellings
{"title":"Demand-side integration for customer choice through variable service subscription","authors":"A. Chuang, C. Gellings","doi":"10.1109/PES.2009.5275910","DOIUrl":"https://doi.org/10.1109/PES.2009.5275910","url":null,"abstract":"Variable Service Subscription is a “Regional Codes and Standards” type method for integrating demand-side resources into power system and market operations. This method has been initially identified in prior work by the authors. This paper details the method in comparison to other demand-side implementation methods and identifies program examples as well as information exchange requirements. The paper discusses smart grid infrastructure as a support for widespread demand-side integration through Variable Service Subscription. By coordinating the automation of electric service according to both subscribed customer preferences and system operational needs, unprecedented levels of customer choice can be enabled in a fashion that benefits both the grid and end-use customers.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124134489","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
Visualization of propagation signals accompanied by contact using cross-correlation method based on in-place fast haar wavelet transform 基于原位快速haar小波变换的互相关法可视化接触传播信号
2009 IEEE Power & Energy Society General Meeting Pub Date : 2009-07-26 DOI: 10.1109/PES.2009.5276013
M. Kawada, Koji Yamada, Y. Kaneko, K. Isaka
{"title":"Visualization of propagation signals accompanied by contact using cross-correlation method based on in-place fast haar wavelet transform","authors":"M. Kawada, Koji Yamada, Y. Kaneko, K. Isaka","doi":"10.1109/PES.2009.5276013","DOIUrl":"https://doi.org/10.1109/PES.2009.5276013","url":null,"abstract":"In this paper we present the results of applying the cross-correlation (CC) method based on the in-place fast Haar wavelet transform (IpFHWT) to visualize the propagation signals associated with contact on a model turbine rotor. It is required to detect typical vibration and to localize the position of failure in turbine and generator accurately. Because modern power plants usually use one-high pressure and one or two lower pressure turbines and a generator, we use the turbine model with three rotors. The cross-correlation of acceleration signals is obtained in the time-frequency domain by using the CC-IpFHWT. From the cross-correlation the signals accompanied by the contact can be extracted.","PeriodicalId":258632,"journal":{"name":"2009 IEEE Power & Energy Society General Meeting","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114761850","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
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