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2010 International Conference on Power System Technology最新文献

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Dynamic responses of the conductors in transmission lines under two typical impact loads 两种典型冲击载荷作用下输电线路导线的动力响应
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666430
Fengli Yang, Jing-bo Yang, D. Fu, Qinghua Li
{"title":"Dynamic responses of the conductors in transmission lines under two typical impact loads","authors":"Fengli Yang, Jing-bo Yang, D. Fu, Qinghua Li","doi":"10.1109/POWERCON.2010.5666430","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666430","url":null,"abstract":"Impact loads from ice shedding and broken conductors are common for transmission lines in accreted ice zone, which can bring threaten to the safe operation of the transmission lines. Dynamic analysis of the conductors in transmission lines under two typical impact loads were carried out. Firstly, a finite element model of seven span conductors in transmission line was established in general software ANSYS. Secondly, a time history of the input loading was proposed for the ice shedding load case. Dynamic responses of jumping heights and the reaction forces at the end of insulators were calculated by the implicit dynamic analysis. Some variables were considered in the ice-shedding simulations that include thickness of the accreted ice, length of the ice-shedding span as well as elevation difference. Influences of all the variables on the dynamic responses under ice shedding were studied. Thirdly, the broken load case can be realized by birth-death element method in ANSYS. Stiffness of the broken conductor or insulator element was changed to be a near zero value in a very short time. Dynamic responses of displacements at the broken points, tension forces of the conductors and the reaction forces of the insulators were obtained. Lastly, based on the analysis results, the impact factors under ice shedding and broken conductor load cases were determined, which provide important reference for the design of transmission lines in accreted ice zone.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131518930","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
A fault line selection algorithm in non-solidly earthed network based on holospectrum 一种基于全息谱的非实接地网络故障选线算法
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666442
Daoyang Yu, Fan Zhou, Xing Jin, Guanghua Xu
{"title":"A fault line selection algorithm in non-solidly earthed network based on holospectrum","authors":"Daoyang Yu, Fan Zhou, Xing Jin, Guanghua Xu","doi":"10.1109/POWERCON.2010.5666442","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666442","url":null,"abstract":"The methods of line selection today focus on one target of the signal such as amplitude, frequency or phase. A novel method based on holospectrum algorithm to detect single-phase faults in distribution systems is proposed in this paper. After structuring analytic signals of zero sequence current and voltage, the holospectrum algorithm is applied. Thus the analysis of combined signal of amplitude, frequency and phase is realized. Compared with the use of single amplitude, frequency or phase, combined signal carries more details and information of transient signal. Theoretical analysis and simulation based on Simulink of MATLAB show that the presented method can exactly and effectively choose the faulty line in single-phase-to-ground fault.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132602101","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
The impact of domestic Plug-in Hybrid Electric Vehicles on power distribution system loads 国产插电式混合动力汽车对配电系统负荷的影响
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666513
Sikai Huang, D. Infield
{"title":"The impact of domestic Plug-in Hybrid Electric Vehicles on power distribution system loads","authors":"Sikai Huang, D. Infield","doi":"10.1109/POWERCON.2010.5666513","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666513","url":null,"abstract":"The market for Plug-in Hybrid Electric Vehicle (PHEVs) is expected to grow significantly over the next few years and a number of new products are soon to come onto the market, such as the Toyota Prius plug-in version, [1]. The charging demand of wide-scale use of PHEVs may have a significant impact on domestic electricity loads and could risk of overloading the power system if appropriate charging strategies not applied to prevent this. A Monte Carlo Simulation (MCS) model of domestic PHEV use and availability has been developed based on probabilistic characterisations obtained from UKTUS and quantifies charging demand of PHEVs as a function of time of day. The MCS model has been developed in order to simulate the impact on the electricity distribution system. This article also discusses the potential for responsive battery charging load from PHEVs.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130820649","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: 70
Modeling of common load components in power system based on dynamic simulation experiments 基于动态仿真实验的电力系统常用负荷分量建模
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666712
B. Zhao, Yong Tang, Wen-chao Zhang, Q. Wang
{"title":"Modeling of common load components in power system based on dynamic simulation experiments","authors":"B. Zhao, Yong Tang, Wen-chao Zhang, Q. Wang","doi":"10.1109/POWERCON.2010.5666712","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666712","url":null,"abstract":"The subject of load modeling for bulk power system dynamic simulations has been received increasing attention in the past decades. The characteristics and models of the common load components are foundations to construct the accurate composite load models for power system dynamic stability studies. The power system common used load components, the load classes and the main load components in power system are introduced firstly. Then, the common used static load components, such as incandescent, fluorescent, sodium lamp, LCD, desktop pc, notebook, electromagnetic oven, microwave oven, electronic oven and auto rice cooker, are modeled based on dynamic simulation experiments. In order to ensure these models to be precise to simulate the actual dynamic responses of load components, large disturbance tests are adopted to validate these models. Comparisons of the proposed models and the typical models cited from influential references for common load components are done to justify the necessary of this work.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130723135","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: 14
A new factor affecting self-organized criticality in power system 影响电力系统自组织临界的新因素
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666136
C. Liang, Wenying Liu, Jifeng Liang, Zheng Chen
{"title":"A new factor affecting self-organized criticality in power system","authors":"C. Liang, Wenying Liu, Jifeng Liang, Zheng Chen","doi":"10.1109/POWERCON.2010.5666136","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666136","url":null,"abstract":"An original view is proposed that, under specific running state, power system self-organized criticality is related to power grid's uniform degree. The uniform degree of power grid was characterized by network topology entropy, and then a model to simulate power system self-organized criticality is proposed. Simulations in an IEEE39-bus system with the proposed model show that, under the uniform loading and flow distribution, the higher grid's uniform degree, the lower probability of power cascading failure will be. Furthermore, balancing power grid's uniform degree can effectively prevent large-scale disastrous blackouts and reduce the risk of entering power self-organized criticality state.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128864581","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
Backbone network bandwidth prediction and plan technology research based on Smart Grid telecommunication service analysis 基于智能电网电信业务分析的骨干网带宽预测与规划技术研究
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666411
Ziyan Zhao, Suqin Xiong, Jing Zhou, X. Chen
{"title":"Backbone network bandwidth prediction and plan technology research based on Smart Grid telecommunication service analysis","authors":"Ziyan Zhao, Suqin Xiong, Jing Zhou, X. Chen","doi":"10.1109/POWERCON.2010.5666411","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666411","url":null,"abstract":"The development of Smart Gird has higher demand on the support of electric power telecommunication network. Considering the “strong smart Grid construction and development mode, service modeling, bandwidth prediction and plan technology of electric power telecommunication network which covers the main parts of smart grid (Generation, Transmission and Power Dispatching) is studied in this paper. Then methods of service modeling of smart grid telecommunication network and backbone network bandwidth prediction method based on service models are carried out. It is proved that the model and method is strongly operational and practical according to the calculated result. The bandwidth calculated satisfies the development of telecommunication services. The method carried out in this paper that has already used in the “the 12th five year plan” of state grid telecommunication will do great help for the bandwidth management and plan of power system telecommunication network.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115337562","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
Research on application of DC emergency power control to improve the transmission capacity of UHV AC demonstration project 直流应急电源控制在提高特高压交流示范工程输电能力中的应用研究
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666686
Wang Qi, Zhang Wenchao, Tang Yong
{"title":"Research on application of DC emergency power control to improve the transmission capacity of UHV AC demonstration project","authors":"Wang Qi, Zhang Wenchao, Tang Yong","doi":"10.1109/POWERCON.2010.5666686","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666686","url":null,"abstract":"The steady-state stability of UHV demonstration project is low due to large interconnection impedance. In this paper, a DC emergency power control strategy is proposed to improve UHV demonstration project transmission capability by using DC fast adjustment to restrain the tie -line power variation and decrease UHV power oscillation peak value. The simulation results show that the North and Central China interconnection power grid can keep synchronization stability during disturbance or power shortage, after the proposed DC emergency power control strategy has been applied. The proposed control strategy can be widely applied in China to effectively improve the stability of North and Central China interconnection power grid during disturbance.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115799166","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
Influence of tie-line reactance on damping of inter-area oscillation mode 联络线电抗对区间振荡模态阻尼的影响
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666725
Wenfeng Li, Ying Li, Zenghuan Liu, Xiangyu Tao, Fang Zhu, Jun Pu, Hui Chao, Hongguang Zhao
{"title":"Influence of tie-line reactance on damping of inter-area oscillation mode","authors":"Wenfeng Li, Ying Li, Zenghuan Liu, Xiangyu Tao, Fang Zhu, Jun Pu, Hui Chao, Hongguang Zhao","doi":"10.1109/POWERCON.2010.5666725","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666725","url":null,"abstract":"The influence of tie-line reactance on damping of inter-area oscillation mode is studied. The phenomenon of the inter-area mode damping ratio decreasing when inter-connection is strengthened is proposed. Main interconnected grids in China are tested by calculating sensitivity of eigenvalue to tie-line reactance, including Chuanyu-Mid China Grids, Northeast-North Grids, North-Mid Grids and Fujian-East Grids. A two- area system is constructed for further investigation. The study shows there is no strict linear relationship between tie-line reactance and damping of inter-area oscillation mode. For a large-scale system, the power transferred of which is comparatively small, it is possible that damping of inter-area mode decreases as tie-line reactance decreases, which is opposite to the commonly accepted opinion. Although the phenomenon is comparatively rare, it should be carefully paid attention to considering its strong influence under some critical stage. These tests also demonstrate that reinforcement of the conection between two bulk power grids is an effective way to mitigate oscillations in systems.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114501406","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
The new non-discriminatory strategy for cost allocation in restructured system 体制改革中新的非歧视成本分配策略
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666583
S. Dehghan, A. Sedighi, M. Moradi, H. Mirjalili
{"title":"The new non-discriminatory strategy for cost allocation in restructured system","authors":"S. Dehghan, A. Sedighi, M. Moradi, H. Mirjalili","doi":"10.1109/POWERCON.2010.5666583","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666583","url":null,"abstract":"Congestion relief management (CRM) is introduced as one of ancillary services in market structure. The CRM maintains the system operation within the security limits and defines the cost receiving and paying for congestion relief. It is important contents that how congestion relief cost is allocated to every participant in energy market. In this paper, a new strategy for congestion cost allocation in a pool-based market is proposed to improve the accuracy and equitability of the existing methods, also it can eliminates merchandising surplus and give correct signal to participants for each congested line separately. ISO determines how much congestion is related to every participant by using an index. This index termed as congestion allocation index (CAI) which is determined for every bus. This method is capable of allocating cost to every participant based on each participant's share in congested line. The numerical study is based on IEEE 30-bus system.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114961902","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
New swing-blocking methods for digital distance protection using Support Vector Machine 基于支持向量机的数字距离保护摆动阻塞新方法
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666525
W. Kampeerawat, W. Buangam, S. Chusanapiputt
{"title":"New swing-blocking methods for digital distance protection using Support Vector Machine","authors":"W. Kampeerawat, W. Buangam, S. Chusanapiputt","doi":"10.1109/POWERCON.2010.5666525","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666525","url":null,"abstract":"This paper presents a method for power swing and fault diagnosis of power system based on Support Vector Machine (SVM) classifier. The method adopts Least Square Support Vector Machine (LS-SVM) classifier to identify the power swing and fault types. The power swing blocking elements are based on monitor the rate of change of the impedance, the power swing center voltage, the positive current and zero sequence component. The process of training the LS-SVM using a K-folded cross validation process for determining the values of parameter σ and parameter λ in RBF kernel parameter that will give minimum classification error. The proposed method can successfully detect power swing and provide power swing blocking for accurate distance protection during power swing.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"198200 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122060872","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
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