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Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)最新文献

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An automatic fault management model for distribution networks 配电网故障自动管理模型
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702764
M. Lehtonen, S. Hanninen, T. Laine, M. Seppanen, E. Antila, E. Markkila
{"title":"An automatic fault management model for distribution networks","authors":"M. Lehtonen, S. Hanninen, T. Laine, M. Seppanen, E. Antila, E. Markkila","doi":"10.1109/EMPD.1998.702764","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702764","url":null,"abstract":"An automatic computer model for power system fault location, fault isolation and supply restoration is presented. The model works as an integrated part of SCADA and distribution network automation systems. Three techniques are used for fault location, distance computation, fault indicators and statistical data of fault frequencies. Once the faulty section is identified, it is automatically isolated and the supply is restored to the remaining parts of the power network.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127785388","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
Distribution system power flow based on loop-impedance equations 基于回路阻抗方程的配电系统潮流
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702822
S. Wang, Yutian Liu, T. Ruan
{"title":"Distribution system power flow based on loop-impedance equations","authors":"S. Wang, Yutian Liu, T. Ruan","doi":"10.1109/EMPD.1998.702822","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702822","url":null,"abstract":"The power flow calculation method reported by S.K. Goswami et al. can converge very quickly when used to solve radial and meshed distribution systems, but their branch and node numbering scheme is complex and hard to practise. This paper presents a new simple branch and node numbering scheme, and some improvements on the solution techniques which can make the algorithm more effective. The results of 33-bus and 90-bus test systems show its superiority for the solution of meshed networks compared with the other methods.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128759402","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
New energy management system architectural design and Intranet/Internet applications to power systems 新能源管理系统架构设计及内联网/互联网在电力系统中的应用
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.705504
J. Ta-Kan Ma, Tru-Ming Liu, Longli Wu
{"title":"New energy management system architectural design and Intranet/Internet applications to power systems","authors":"J. Ta-Kan Ma, Tru-Ming Liu, Longli Wu","doi":"10.1109/EMPD.1998.705504","DOIUrl":"https://doi.org/10.1109/EMPD.1998.705504","url":null,"abstract":"Utility companies are facing various deregulation and automation challenges. New guidelines have to be gradually defined in the evolving open-access market. Power system engineers need a set of state-of-the-art applications, e.g., OASIS and power resource trading, to analyze system reliability and/or gain economic benefits. The existing energy management system (EMS) functionality could not handle these new needs, e.g., energy buy/sale, new economic dispatch, etc., and need to be enhanced immediately. This paper investigates new power system application development requirements and propose a flexible EMS architectural design. The matured Intranet/Internet, relational database, and object-oriented technologies are fully utilized in the new infrastructure. The proposed EMS architecture has the features of flexibility, openness, consistent user-interface, etc. Therefore, it can meet the system migration and future enhancement requirements. The presented methodology has been successfully applied to the prototyping implementation of an energy accounting (EA) application. The results, benefits, and decision-making process of using the proposed approach are also reported.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134145373","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
Application of model based intelligent alarm processor for the power supply system of the mass rapid transit system of Taipei 基于模型的智能报警处理器在台北市轨道交通供电系统中的应用
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702582
Yen-Kuang Lin, M. Tsai, Ying-Yi Horng, Yun-Ching Tsuei
{"title":"Application of model based intelligent alarm processor for the power supply system of the mass rapid transit system of Taipei","authors":"Yen-Kuang Lin, M. Tsai, Ying-Yi Horng, Yun-Ching Tsuei","doi":"10.1109/EMPD.1998.702582","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702582","url":null,"abstract":"A hybrid expert system which utilizes model-based and rule-based knowledge is developed for processing alarms generated from the SCADA computer of the power supply system of the rapid transit system of Taipei. The heuristic rules are used to perform message synthesis while the model-based knowledge is used to find the relationship among alarms. The traditional rule based alarm processing expert system has the disadvantages of incompleteness of the knowledge base. This problem can be resolved by using a model-based approach. On the other hand, message synthesis cannot be modeled easily. Therefore, heuristic knowledge is applied. In this paper, a hybrid expert system is developed to take advantages of both types of knowledge bases.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131943656","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
Low cost thermal imaging for power systems applications using a conventional CCD camera 低成本热成像的电力系统应用，使用传统的CCD相机
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702751
P. Moore, F. Harscoet
{"title":"Low cost thermal imaging for power systems applications using a conventional CCD camera","authors":"P. Moore, F. Harscoet","doi":"10.1109/EMPD.1998.702751","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702751","url":null,"abstract":"An investigation has been made to assess the performance of a conventional CCD camera, as commonly used in substation security schemes, for thermal imaging applications. CCD cameras are responsive to infrared radiation in the waveband 0.8-1.1 /spl mu/m. Software image averaging and filtering techniques were developed to improve the signal to noise ratio of the camera image. Laboratory tests conducted in the exclusion of light show that objects at temperatures as low as 280/spl deg/C can be reliably detected by a standard CCD camera. Although this temperature is probably too high for most power plant thermal monitoring, this work raises the question of whether camera resources for security and thermal investigations can be shared.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124169089","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: 12
Analysis of transmission capability associated with the installation of the largest nonutility generating (NUG) facility in Taiwan 台湾最大的非公用发电(NUG)设施安装相关的传输能力分析
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702704
C. Chu, Yu-Fa Jang, Herng-Jer Lee, Hsing-Yi Chien, Chung-Sung Yuan, Ling-Shen Ma, Chung-Hung Hsiao, Fwu-Shuenn Chen, Cheng-Tung Yu
{"title":"Analysis of transmission capability associated with the installation of the largest nonutility generating (NUG) facility in Taiwan","authors":"C. Chu, Yu-Fa Jang, Herng-Jer Lee, Hsing-Yi Chien, Chung-Sung Yuan, Ling-Shen Ma, Chung-Hung Hsiao, Fwu-Shuenn Chen, Cheng-Tung Yu","doi":"10.1109/EMPD.1998.702704","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702704","url":null,"abstract":"In this paper, preliminary analysis of voltage stability for the Mai-Liao power system is presented. By combining the continuation power flow (CPFLOW), eigenvalue analysis, singular value analysis, and test function, we study the maximum power transfer between Mai-Liao power system and Taipower system under different system configurations. Simulation results on the Mai-Liao system are presented.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115822736","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
Practical application of object oriented techniques to designing neural networks for short-term electric load forecasting 面向对象技术在短期负荷预测神经网络设计中的实际应用
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702746
L. L. Lai, A.G. Sichanie, N. Rajkumar, E. Styvaktakis, M. Sforna, M. Caciotta
{"title":"Practical application of object oriented techniques to designing neural networks for short-term electric load forecasting","authors":"L. L. Lai, A.G. Sichanie, N. Rajkumar, E. Styvaktakis, M. Sforna, M. Caciotta","doi":"10.1109/EMPD.1998.702746","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702746","url":null,"abstract":"This paper illustrates the use of object oriented programming (OOP) techniques for the design of neural networks (NNs) for short-term load forecasting. A load forecasting model has been developed using a multilayer perceptron NN with an appropriately modified backpropagation learning algorithm. The model produces a simultaneous forecast of the load in the 24 hours of the forecast day concerned. The technique has been tested on data provided by the Italian Power Company ENEL and the promising results obtained through the application of OOPNN-based approach show the effectiveness of this new approach.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114340624","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
Application of a nonlinear PID controller on STATCOM with a differential tracker 非线性PID控制器在带微分跟踪器的STATCOM上的应用
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.705410
Y. Ni, L. Jiao, S. Chen, B. Zhang
{"title":"Application of a nonlinear PID controller on STATCOM with a differential tracker","authors":"Y. Ni, L. Jiao, S. Chen, B. Zhang","doi":"10.1109/EMPD.1998.705410","DOIUrl":"https://doi.org/10.1109/EMPD.1998.705410","url":null,"abstract":"In this paper a nonlinear PID controller is suggested for damping the interarea power oscillation of interconnected power systems. A differential tracker is introduced to obtain a low-noise derivative of the controller input signal. The nonlinear PID controller is applied on STATCOM supplementary control. A computer program for transient and steady-state stability study has been developed based on the Power System Toolbox of MATLAB. Computer tests show clearly the effectiveness of the nonlinear PID controller and the good performance of the differential tracker.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114396293","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
Induction motor modelling and interfacing technique for fast transient stability simulation 异步电机快速瞬态稳定仿真建模与接口技术
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.702744
K. Sreerama, Rajesh Ramanujam, H. P. Kincha, L. Jenkins
{"title":"Induction motor modelling and interfacing technique for fast transient stability simulation","authors":"K. Sreerama, Rajesh Ramanujam, H. P. Kincha, L. Jenkins","doi":"10.1109/EMPD.1998.702744","DOIUrl":"https://doi.org/10.1109/EMPD.1998.702744","url":null,"abstract":"This paper presents a numerically robust algorithm for the inclusion of induction motor loads for fast transient stability simulation of large power systems. The proposed method involves the simultaneous solution of the equations which describe the induction motor dynamics with the equations of network and generators. The interfacing technique is based on the prediction of the motor's slip EMFs using extrapolation. The application of the proposed method in the analysis of motor dynamics during bus short circuit and free acceleration are presented along with an independent corroboration.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114203570","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
Fault identification during power swings with symmetrical component 具有对称分量的功率振荡故障识别
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI: 10.1109/EMPD.1998.705448
Q.X. Yang, Z.Y. Xu, L. Lai, Z.H. Zhang, N. Rajkumar
{"title":"Fault identification during power swings with symmetrical component","authors":"Q.X. Yang, Z.Y. Xu, L. Lai, Z.H. Zhang, N. Rajkumar","doi":"10.1109/EMPD.1998.705448","DOIUrl":"https://doi.org/10.1109/EMPD.1998.705448","url":null,"abstract":"This paper presents a novel power network protection scheme during power swing blocking. The blocked protective relays will be released when the system restores to its normal operating conditions. The protection scheme is based on symmetrical components. EMTP simulation results show the proposed scheme in this paper are quite suitable for modern digital-based protective relays. Examples are shown for unbalanced fault cases.","PeriodicalId":434526,"journal":{"name":"Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126959617","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: 12
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