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IEEE Power Engineering Society General Meeting, 2004.最新文献

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The black-out in southern Sweden and eastern Denmark, September 23, 2003 2003年9月23日，瑞典南部和丹麦东部停电
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2006-10-01 DOI: 10.1109/psce.2006.296324
S. Larsson, E. Ek
{"title":"The black-out in southern Sweden and eastern Denmark, September 23, 2003","authors":"S. Larsson, E. Ek","doi":"10.1109/psce.2006.296324","DOIUrl":"https://doi.org/10.1109/psce.2006.296324","url":null,"abstract":"At midday on Tuesday September 23 2003, the Nordic power system experienced the most severe disturbance in 20 years. The southern part of Sweden and the eastern part of Denmark, including its capital city of Copenhagen, were blacked-out. The cause was a close coincidence of severe faults leading to a burden on the system far beyond the contingencies regarded in normal system design and operating security standards.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123611558","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: 60
New external neurocontroller for series capacitive reactance compensator in a power network 电网串联容抗补偿器的新型外部神经控制器
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-08-02 DOI: 10.1109/TPWRS.2004.826802
Jung-Wook Park, R. Harley, G. Venayagamoorthy
{"title":"New external neurocontroller for series capacitive reactance compensator in a power network","authors":"Jung-Wook Park, R. Harley, G. Venayagamoorthy","doi":"10.1109/TPWRS.2004.826802","DOIUrl":"https://doi.org/10.1109/TPWRS.2004.826802","url":null,"abstract":"Summary form only given. The controllable capacitive reactance can be used as the input variable for the external controller of a series capacitive reactance compensator (SCRC) to improve the damping of low-frequency oscillations of the rotor angle and active power in a power system. Conventional linear PI controllers are tuned for best performance at one specific operating point of the nonlinear power system. At other operating point its performance degrades. Nonlinear optimal neurocontrollers are able to overcome this degradation. In this work, the dual heuristic dynamic programming (DHP) optimization algorithm is applied to design an external nonlinear optimal neurocontroller for the SCRC. Simulation studies using PSCAD/EMTDCO software are presented.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116713423","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: 10
PEM fuel cells for improved grid reliability and power transfer PEM燃料电池用于提高电网可靠性和电力传输
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373149
B. Knaggs, T. Niimura, F. Ordubadi
{"title":"PEM fuel cells for improved grid reliability and power transfer","authors":"B. Knaggs, T. Niimura, F. Ordubadi","doi":"10.1109/PES.2004.1373149","DOIUrl":"https://doi.org/10.1109/PES.2004.1373149","url":null,"abstract":"Battery energy storage systems (BESS), with power conversion equipment, can improve grid reliability and the transfer of power through transmission and distribution lines. Proton exchange membrane (PEM) fuel cells can be used to extend the capacity of a BESS, potentially making these grid energy storage systems more cost effective. To help evaluate these opportunities, This work proposes the development of a generalized model for a PEM fuel cell BESS (PEMFC-BESS) that will match hardware and operating schedules to selected portions of the grid.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115129905","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
Robust oscillatory stability assessment for large interconnected power systems 大型互联电力系统鲁棒振荡稳定性评估
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373203
S. P. Teeuwsen, I. Erlich, M. El-Sharkawi
{"title":"Robust oscillatory stability assessment for large interconnected power systems","authors":"S. P. Teeuwsen, I. Erlich, M. El-Sharkawi","doi":"10.1109/PES.2004.1373203","DOIUrl":"https://doi.org/10.1109/PES.2004.1373203","url":null,"abstract":"This paper deals with robust dynamic security assessment for large interconnected power systems. Special interest is focused on the prediction of critical inter-area oscillatory modes of power systems based on neural networks. After selection of inputs for the neural network and proper training, the stability condition of the power system can be predicted with high accuracy. Hereby, the neural network outputs are assigned to activations of sampling points in the complex plain depending on the distances to the eigenvalues. This method depends highly on the reliability of the measured input data. Missing or bad input data will automatically lead to false prediction results. This paper proposes different methods, which improve the prediction robustness by detecting bad data inputs and outliers. In a second step, input signals identified as bad data inputs will be restored to their correct value","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115728166","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
Operating-condition-dependent ARMA model for PSS application PSS应用工况相关ARMA模型
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373177
P. Zhao, O. Malik
{"title":"Operating-condition-dependent ARMA model for PSS application","authors":"P. Zhao, O. Malik","doi":"10.1109/PES.2004.1373177","DOIUrl":"https://doi.org/10.1109/PES.2004.1373177","url":null,"abstract":"Adaptive power system stabilizers (APSS) have attracted plenty of interests in recent years. Most APSSs are model-based. The widely used models in APSSs are auto regression moving average (ARMA) and nonlinear auto regression moving average with exogeneous inputs (NARMAX) models. In This work, an operating-condition-dependent (OC-dependent) ARMA model is presented and realized by local model networks (LMN). The proposed model has the capability of fast learning similar to the RBF-based NARMAX model and can work for various operating conditions without updating its parameters. The effectiveness of the model is verified by simulation studies.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116941004","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
The Italian 2003 blackout 2003年意大利大停电
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373159
A. Berizzi
{"title":"The Italian 2003 blackout","authors":"A. Berizzi","doi":"10.1109/PES.2004.1373159","DOIUrl":"https://doi.org/10.1109/PES.2004.1373159","url":null,"abstract":"On September 28th, 2003, at 3:01 a.m., a fault on the Swiss power system caused the overloading of two Swiss internal lines close to the Italian border. The interconnection lines were heavily loaded by the large power import and the coordination between the system operators was not sufficient to mitigate the overload. The consequent loss of those important branches caused cascading outages of the lines interconnecting the Italian system and the remaining part of the UCTE (Union for the Coordination of the Transmission of Electricity) system. This resulted in a very sudden loss of synchronism between the Italian system and the UCTE grids, causing the loss of the whole import. The consequent power unbalance caused the frequency in Italy to decline; the automatic load shedding procedure was not able to shed load enough to balance the generation and the load, and this resulted in the blackout. The paper provides a short description of the pre-fault system operation and of the main events that triggered the blackout, identifying some of the main causes that resulted in the separation of the Italian system and the blackout. In addition, issues related to the misoperation of the Italian automatic procedure to prevent the blackout are discussed.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127314886","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: 125
Economic benefits and strategic new international transmission in the Southern African power pool (SAPP) and West African power pool (WAPP) 南部非洲电力联营(SAPP)和西非电力联营(WAPP)的经济效益与战略性国际新输电
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373089
F. Sparrow, B. Bowen, Z. Yu
{"title":"Economic benefits and strategic new international transmission in the Southern African power pool (SAPP) and West African power pool (WAPP)","authors":"F. Sparrow, B. Bowen, Z. Yu","doi":"10.1109/PES.2004.1373089","DOIUrl":"https://doi.org/10.1109/PES.2004.1373089","url":null,"abstract":"This work discusses the Purdue long-term expansion model (LTEM), which is used in both the SAPP and WAPP policy planning. This policy is a 20-year planning system for energy and reserve trade between countries, which minimizes the present value of electricity generation costs, and generation/transmission capacity expansion costs. Modeling demonstrations consistently indicate the importance of several particular international transmission lines in Africa. Also expansions on existing lines and the addition of new proposed lines are indicated as providing the most cost effective investments for improving reliability of supplies across Africa.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124726115","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
Sense and nonsense in electricity sector reform in developing countries 发展中国家电力部门改革的意义与荒谬
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373305
K. David
{"title":"Sense and nonsense in electricity sector reform in developing countries","authors":"K. David","doi":"10.1109/PES.2004.1373305","DOIUrl":"https://doi.org/10.1109/PES.2004.1373305","url":null,"abstract":"This paper presents the situation in developing countries (DC), which is so different from that in developed economies that the reform of the electricity supply industry (ESI) in these countries must pursue a different path from the practices adopted in Europe and the USA. The need for reform of the ESI is indisputable but the national priorities are different and an alternative more relevant industry structure will be proposed in this presentation.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115221305","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
Grid frequency regulation by recycling electrical energy in flywheels 利用飞轮中的电能循环调节电网频率
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373235
M. L. Lazarewicz, Alex Rojas
{"title":"Grid frequency regulation by recycling electrical energy in flywheels","authors":"M. L. Lazarewicz, Alex Rojas","doi":"10.1109/PES.2004.1373235","DOIUrl":"https://doi.org/10.1109/PES.2004.1373235","url":null,"abstract":"Grid frequency regulation function addresses the balance between the network's load and power generated. The system operator generates a signal, area control error (ACE) signal at PJM, based on the difference between these two parameters. The expected goal is to keep the system near nominal 60 or 50 Hz. Traditionally, frequency regulation is managed by varying the output of fossil fuel or hydro generators connected to the electric grid. The authors present a new method in which electric energy is recycled. First, absorbing energy when it is in abundance, then discharging the same for the desired frequency regulation effect. The proposed system is based on kinetic energy storage technology in high-speed flywheels. Performance modeling results, based on actual ACE signals, indicate that a modular flywheel system matrix is effective in providing frequency regulation. The cost of this system is attractive compared with today's generator-based approach. The controlled injection or absorption of reactive power, inherent to the system, extents its capability to provide voltage support. Further, fast acting control electronics allow for the damping of grid oscillations. All the above functions, once deployed in moderate numbers, could help prevent frequency and voltage shifts that have been linked to significant blackouts in recent history","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122572714","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: 117
Communications for a large distribution automation project in Thailand 为泰国一个大型配电自动化项目提供通信服务
IEEE Power Engineering Society General Meeting, 2004. Pub Date : 2004-06-10 DOI: 10.1109/PES.2004.1373107
R. Hoffman, P. Aouad
{"title":"Communications for a large distribution automation project in Thailand","authors":"R. Hoffman, P. Aouad","doi":"10.1109/PES.2004.1373107","DOIUrl":"https://doi.org/10.1109/PES.2004.1373107","url":null,"abstract":"This work describes the communications system and other main features of a large distribution automation project being commissioned by the provincial electricity authority of Thailand. The project includes the construction of five new area distribution dispatching centers and one new system management center buildings and the installation and commissioning of new SCADA/DMS systems in these centers. A total of 150 substations and over 2000 individual feeder devices are monitored and controlled by the six SCADA/DMS systems. The communication system from the control centers to most of the substations uses previously installed digital microwave links and/or a time division multiple access radio system. However, the project included the design and installation of a new extensive multiple address radio system (MARS) that extends digital communications from the microwave facilities to the feeder devices or implements new links with leased lines coupled to a network of MARS between the control centers and the feeders devices. The project was started in late 2000 and will be fully operational in 2004.","PeriodicalId":236779,"journal":{"name":"IEEE Power Engineering Society General Meeting, 2004.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126893079","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
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