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2011 16th International Conference on Intelligent System Applications to Power Systems最新文献

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Wide-area measurement system control to coordinate HVDC links in large scale power systems 大型电力系统中协调高压直流链路的广域测量系统控制
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082169
R. Eriksson, L. Soder
{"title":"Wide-area measurement system control to coordinate HVDC links in large scale power systems","authors":"R. Eriksson, L. Soder","doi":"10.1109/ISAP.2011.6082169","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082169","url":null,"abstract":"The paper develops wide-area measurement coordinated control for several high-voltage direct current (HVDC) links. The coordinating state-feedback controller is designed based on an estimated reduced order model aiming to improve the damping of the power oscillations.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125565946","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
Applications of hybrid EP-ACO for power distribution system loss minimization under load variations 混合EP-ACO在负荷变化下配电系统损耗最小化中的应用
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082210
M. Tsai, C. Chu
{"title":"Applications of hybrid EP-ACO for power distribution system loss minimization under load variations","authors":"M. Tsai, C. Chu","doi":"10.1109/ISAP.2011.6082210","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082210","url":null,"abstract":"Distribution system reconfiguration is one of the methods that is commonly used in order to improve the system reliability and reduce the system real power loss. The distribution system reconfiguration is normally done by altering the status of switches. When the status of switches on the distribution system is changed, the topology of the system is also changed. During the normal operations, load currents change at different time due to the power usages of different customers. The operation conditions of distribution systems change when the load currents vary. As a result, the topology of distribution system needs to be altered from time to time so the system real power loss can be reduced and the reliabilities can be improved. In this paper, integration of Evolutionary Programming (EP) and Ant Colony Optimization (ACO) is proposed. The objective is to minimize the system real power loss with minimum number of switch operations by considering the load currents variations. Each day is divided into 12 time slots. The peak load current is used for each time slot. By considering the number of switch operations and system real power loss simultaneously, the proposed approach is able to identify the proper switch operations so the system real time loss within a period of time can be minimized. Instead of using constant values as the desirability of state transition during the search process of ACO, application of the grey correlation grade is proposed. Verification is performed using the loading information and the topology information obtained from the Outage Management System (OMS) of Taiwan Power Company (TPC). The results show that by applying the integrated EP and ACO with proposed desirability calculation, the distribution system real power loss can be reduced with proper switch operations for variable load currents.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117247724","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
Differential protection improvement of power transformers using wavelet analysis of power system frequency 利用电力系统频率小波分析改进变压器差动保护
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082203
H. Abniki, H. Monsef, M. T. Nabavi-Razavi, M. Gardeshi
{"title":"Differential protection improvement of power transformers using wavelet analysis of power system frequency","authors":"H. Abniki, H. Monsef, M. T. Nabavi-Razavi, M. Gardeshi","doi":"10.1109/ISAP.2011.6082203","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082203","url":null,"abstract":"This paper presents a new technique for inrush current detection of power transformers. The method is based on wavelet analysis of power system frequency which is estimated by Prony method. The Prony method is utilized to estimate power system frequency with three consecutive samples rapidly. After that, Daubechies wavelet family uses the estimated frequency to investigate the unbalanced conditions in power system. Meanwhile, a new time based criterion is introduced to determine internal fault currents from inrush currents by using the changes of estimated power system frequency. Extended simulations for various faults and inrush conditions demonstrate precise operation of the proposed algorithm also in CT saturation.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129284135","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
Double branch outage modeling and its solution using differential evolution method 双支路停电建模及其微分演化求解
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082228
O. Ceylan, A. Ozdemir, H. Dağ
{"title":"Double branch outage modeling and its solution using differential evolution method","authors":"O. Ceylan, A. Ozdemir, H. Dağ","doi":"10.1109/ISAP.2011.6082228","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082228","url":null,"abstract":"Power system operators need to check the system security by contingency analysis, which requires power flow solutions repeatedly. AC power flow is computationally slow even for a moderately sized system. Thus, fast and accurate outage models and approximated solutions have been developed. This paper adopts a single branch outage model to a double branch outage one. The final constrained optimization problem resulted from modeling is then solved by using differential evolution method. Simulation results for IEEE 30 and 118 bus test systems are presented and compared to those of full AC load flow in terms of solution accuracy.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125842248","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
Pond head level control in a run-of-river hydro power plant using fuzzy controller 用模糊控制器控制顺流水电站水头水位
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082177
Omkar Yadav, N. Kishor, J. Fraile-Ardanuy, S. Mohanty, J. I. Pérez, J. Sarasúa
{"title":"Pond head level control in a run-of-river hydro power plant using fuzzy controller","authors":"Omkar Yadav, N. Kishor, J. Fraile-Ardanuy, S. Mohanty, J. I. Pérez, J. Sarasúa","doi":"10.1109/ISAP.2011.6082177","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082177","url":null,"abstract":"The run-of-river hydro power plant usually have low or nil water storage capacity, and therefore an adequate control strategy is required to keep the water level constant in pond. This paper presents a novel technique based on TSK fuzzy controller to maintain the pond head constant. The performance is investigated over a wide range of hill curve of hydro turbine. The results are compared with PI controller as discussed in [1].","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"425 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114099381","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
Impact of large-scale integration of intelligent meters to the operation of the power system of crete 智能电表大规模集成对混凝土电力系统运行的影响
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082173
G. Asimakopoulou, E. M. Voumvoulakis, A. Dimeas, N. Hatziargyriou
{"title":"Impact of large-scale integration of intelligent meters to the operation of the power system of crete","authors":"G. Asimakopoulou, E. M. Voumvoulakis, A. Dimeas, N. Hatziargyriou","doi":"10.1109/ISAP.2011.6082173","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082173","url":null,"abstract":"In this paper the contribution of the mass application of intelligent meters to the optimization of the grid operation is examined. The power system of the island of Crete is chosen: it constitutes the largest autonomous sub-system of Greece with a considerable penetration of renewable energy sources (RES) mainly in the form of wind farms. Various load control scenarios are considered. For each one an economic dispatch algorithm and the optimal power flow using Eurostag is applied. The comparison of the results focuses on three directions: 1) power losses on the transmission lines, 2) operational cost of the system, and 3) CO2 emissions.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128179422","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
Gossip based message dissemination schemes in future power systems 未来电力系统中基于八卦的消息传播方案
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082199
A. Krkoleva, V. Borozan, A. Dimeas, N. Hatziargyriou
{"title":"Gossip based message dissemination schemes in future power systems","authors":"A. Krkoleva, V. Borozan, A. Dimeas, N. Hatziargyriou","doi":"10.1109/ISAP.2011.6082199","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082199","url":null,"abstract":"The paper gives an overview of the gossip algorithms, their basic properties and implementation possibilities in the future power systems. In the paper, two gossip based schemes for single piece message dissemination are presented. In the paper, the scheme development is discussed in detail and simulation results from the implemented schemes are presented.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133263928","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
Electrical consumers data clustering through Optimum-Path Forest 通过最优路径森林进行电力用户数据聚类
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082217
C. Ramos, A. Souza, R. Nakamura, J. Papa
{"title":"Electrical consumers data clustering through Optimum-Path Forest","authors":"C. Ramos, A. Souza, R. Nakamura, J. Papa","doi":"10.1109/ISAP.2011.6082217","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082217","url":null,"abstract":"Non-technical losses identification has been paramount in the last decade. Since we have datasets with hundreds of legal and illegal profiles, one may have a method to group data into subprofiles in order to minimize the search for consumers that cause great frauds. In this context, a electric power company may be interested in to go deeper a specific profile of illegal consumer. In this paper, we introduce the Optimum-Path Forest (OPF) clustering technique to this task, and we evaluate the behavior of a dataset provided by a brazilian electric power company with different values of an OPF parameter.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131635791","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
Smart meters from the angles of consumer protection and public service obligations 智能电表从保护消费者和履行公共服务义务的角度出发
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082207
Geert Deconinck, Bram Delvaux, Klaas De Craemer, Zhifeng Qiu, R. Belmans
{"title":"Smart meters from the angles of consumer protection and public service obligations","authors":"Geert Deconinck, Bram Delvaux, Klaas De Craemer, Zhifeng Qiu, R. Belmans","doi":"10.1109/ISAP.2011.6082207","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082207","url":null,"abstract":"Digital meters for electricity and gas, which are connected to an information infrastructure are an important component of the smart metering and smart grid infrastructure being deployed. Besides technical and business perspectives, such infrastructure has an impact on the consumer and on authorities that have public service obligations. This paper discusses those elements, also in the context of the assessment that is needed for the European directives 2009/72/EC and 2009/73/EC. It positions smart meters with respect to energy savings and outlines requirements for relevant cost / benefit analyses.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"2007 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123772420","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
Wind farm and pumped storage integrated in generation scheduling using PSO 利用粒子群算法将风电场和抽水蓄能集成到发电调度中
2011 16th International Conference on Intelligent System Applications to Power Systems Pub Date : 2011-11-18 DOI: 10.1109/ISAP.2011.6082191
H. Siahkali
{"title":"Wind farm and pumped storage integrated in generation scheduling using PSO","authors":"H. Siahkali","doi":"10.1109/ISAP.2011.6082191","DOIUrl":"https://doi.org/10.1109/ISAP.2011.6082191","url":null,"abstract":"Wind energy brings many positive benefits to the utility system, such as cost effective energy, long-term price stability, and some system capacity, but it also has different generation characteristics than conventional utility resources. Unlike conventional power generation sources, wind power generators supply intermittent power because of resource uncertainties. This paper presents a new approach to solve the generation scheduling (GS) problem, considering reserve requirement, load-generation balance and wind power generation constraints. The modeling of constraints is an important issue in power system scheduling. This GS problem is solved using new particle swarm optimization (PSO). This problem is applied to a test system which has pumped storage power plants to modify the uncertainties of wind power output and other parameters in power system. Numerical testing results show that near optimal schedules are obtained, and the method can provide a good balance between increasing profit and satisfying constraints.","PeriodicalId":424662,"journal":{"name":"2011 16th International Conference on Intelligent System Applications to Power Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131953237","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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