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2011 International Conference on Advanced Power System Automation and Protection最新文献

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Stator winding's inter-turn fault intelligent diagnosis in large turbo- generator by Elman neural network 基于Elman神经网络的大型汽轮发电机定子绕组匝间故障智能诊断
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180641
Xiao-qiang Dang, N. Tai, Ji-chun Liu
{"title":"Stator winding's inter-turn fault intelligent diagnosis in large turbo- generator by Elman neural network","authors":"Xiao-qiang Dang, N. Tai, Ji-chun Liu","doi":"10.1109/APAP.2011.6180641","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180641","url":null,"abstract":"Turbo-generator stator's inter-turn short is a usual serious fault, there would have hidden big trouble for electric power system's safety due to lack of efficient protection. On-line monitoring generator's operate condition combined intelligence non-line identify technology is presented to observe fault in time instead of poor function of protection. Longitudinal zero-sequence voltage and fault phase's current are analysis as stator winding's inter-turn short's stable fault characters, mathematical model of which are build, Elman neural network which do well for dynamic data in real time are introduced to identify the fault. A large turbo-generator's general parameters are used for calculate its stable fault characters during stator winding's inter-turn short occur in operation, and identification are performed by trained Elman neural network followed. Example indicate that the Elman network could efficiently identify generator stator's inter-turn short based on rational fault characters combine.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132842562","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
Investigation on electric load peak and valley characters and demand response evaluation based on spectral analysis 基于频谱分析的电力负荷峰谷特性研究及需求响应评价
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180571
Yu Cheng, Nan Dong, Yangkai Ren
{"title":"Investigation on electric load peak and valley characters and demand response evaluation based on spectral analysis","authors":"Yu Cheng, Nan Dong, Yangkai Ren","doi":"10.1109/APAP.2011.6180571","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180571","url":null,"abstract":"Along with rapid development of economic situation and industrial structure, electric loads become more and more complex; especially the peak and valley characters of electric load curves fluctuate more and more severely. The foundation of demond response evaluation is peak and valley characteristics of load curves. However, study on electric load peak and valley characters right now is few, conventional indexes of electric load characteristics such as load factor and peak-valley difference factor have shortages in estimating electric load peak and valley characters comprehensively. Spectral analysis method divides the time series of electric load into superposition of periodic components with different amplitude, phase and frequency. By means of measuring the importance of each periodic component, the main-cycles components in the change of power load can be found out. The paper uses spectral analysis method to analyze power load and pulls out two indexes to describe peak and valley characters of load curves. On basis of these indexes, the paper evaluates the effect of demand response. Finally the example has confirmed this new method developed on the basis of spectral analysis. Through spectral analysis method, research on load characteristics and demand response evaluation is transferred from time domain to frequency domain. In accordance with the spectrum characters of electric load curves, we can analyze the essence of load curves' fluctuation more effectively.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133599628","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
Study on identifying method of electric shock current amplitude based on Independent Component Analysis 基于独立分量分析的触电电流幅值识别方法研究
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180701
Juan Su, Y. Xia, Songhuai Du, Chunlan Li, Junjie Zhang, Limiao Zhang
{"title":"Study on identifying method of electric shock current amplitude based on Independent Component Analysis","authors":"Juan Su, Y. Xia, Songhuai Du, Chunlan Li, Junjie Zhang, Limiao Zhang","doi":"10.1109/APAP.2011.6180701","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180701","url":null,"abstract":"An identifying method of electric shock current amplitude based on Independent Component Analysis is proposed in this paper. The physical testing data of electrical shock current and summation leakage current, which were obtained from the physical electric shock experiment platform, were analyzed by the fast independent component analysis (ICA) model. The mean square error and correlation analysis between the extracted signal and actual results were studied, and the results showed that this method can effectively separate the electric shock current and provide technical support for the development of the residual current protective device.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127624574","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
Study of the New Permanent Magnet switched reluctance motor 新型永磁开关磁阻电机的研究
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180757
Junfang Zhang, Xiaofeng Lu, Jun Lu, Qi Kang, Xinzhou Dong
{"title":"Study of the New Permanent Magnet switched reluctance motor","authors":"Junfang Zhang, Xiaofeng Lu, Jun Lu, Qi Kang, Xinzhou Dong","doi":"10.1109/APAP.2011.6180757","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180757","url":null,"abstract":"I For the situation that the traditional switched reluctance motor exists output torque ripple, this article changes the motor structure, adding permanent magnets in the stator, which changes the motor into the hybrid-excitation motor and changes the magnetic circuit into the axial magnetic circuit. As a result, the magnetic circuit becomes shorter and the output torque becomes greater. Besides, because of changes in the structure, the control method using double complementary conduction suppresses torque ripple. At the same time there is no mutual inductance existing between each phases. We also discuss the speed structure and the hardware structure of the new switched reluctance motor.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131636284","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 multi-agent technology in micro-grid system 多智能体技术在微电网系统中的应用
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180729
Xing-Bei Jia, C. Dou, Z. Bo, Fang Zhao, Dong-le Liu
{"title":"Application of multi-agent technology in micro-grid system","authors":"Xing-Bei Jia, C. Dou, Z. Bo, Fang Zhao, Dong-le Liu","doi":"10.1109/APAP.2011.6180729","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180729","url":null,"abstract":"This paper proposes a multi-agent technology to energy management of the distributed generations in a micro-grid system. An introduction and analysis of the distributed intelligent multi-agent technology are presented first, including its three-layered architecture and operation mechanism. Then, the objective function about micro-grid system is given. Control strategy of a multi-agent system and several common distributed generations are presented in detail with a framework containing some kinds of agents. Discussion about the multi-agent system and each agent's behaviors are included. It demonstrates that the proposed multi-agent technology is successfully monitored, controlled and operated for the energy management of the distributed generations in micro-grid system.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133723847","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: 13
The application of precision clock synchronization technology based on PTP(IEEE1588) in traveling wave fault location system 基于PTP(IEEE1588)的精密时钟同步技术在行波故障定位系统中的应用
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180541
Ruifeng Li, Xiangjun Zeng, Hui Liu, Yang Wang
{"title":"The application of precision clock synchronization technology based on PTP(IEEE1588) in traveling wave fault location system","authors":"Ruifeng Li, Xiangjun Zeng, Hui Liu, Yang Wang","doi":"10.1109/APAP.2011.6180541","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180541","url":null,"abstract":"Traveling wave fault location system is an important part in building strong smart grid. Global Positioning System( GPS)is now widely used as clock synchronization source. However, with the development of smart grid technology, GPS clock has exposed some limitations. A kind of traveling wave fault location network based on PTP(IEEE1588) is proposed in this paper. First, the synchronization principle of high-accuracy clock synchronization technology bades on IEEE1588 is analyzed. Then, structure of PTP(IEEE1588) based traveling wave fault location network is built. Last, redundancy scheme of PTP based time synchronization system for traveling wave fault location network is designed. Compared to GPS traveling wave fault location system, this one has such advantages as low cost, having nothing to do with climate, location and environment, and can meet the demand for clock synchronization among each traveling wave fault location system. Connected by Ethernet, GPS clock is not needed to be installed in each traveling wave fault location equipment. It is simple, reliable and of obvious superiority, playing great significance on maintaining safe operation of power and social stability.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115238376","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
The method for Synchronized Phasor Measurement Unit testing and evaluation 同步相量测量单元的测试与评估方法
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180840
Yue-hai Yu, Daonong Zhang, Zexin Zhou, Jie Zhou, Tianjian Lu
{"title":"The method for Synchronized Phasor Measurement Unit testing and evaluation","authors":"Yue-hai Yu, Daonong Zhang, Zexin Zhou, Jie Zhou, Tianjian Lu","doi":"10.1109/APAP.2011.6180840","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180840","url":null,"abstract":"Phasor Measurement Unit (PMU) devices, based on the synchronized measurement technology, are basic building blocks of Wide Area Monitoring System (WAMS) and Wide Area Monitoring Analysis Protection-control (WAMAP). Similar to the Remote Terminal Unit (RTU) in Energy Management System (EMS), PMU is becoming very important in the WAMS or WAMAP. This paper introduces the architecture of PMU testing and evaluation (T&E) in our laboratory. The integrated evaluation schemes include testing environment, performance testing method, conformance testing method and evaluation.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115521120","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
Power systems fault diagnosis based on grid computing 基于网格计算的电力系统故障诊断
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180609
Lei Wang, Qing Chen, Zhanjun Gao
{"title":"Power systems fault diagnosis based on grid computing","authors":"Lei Wang, Qing Chen, Zhanjun Gao","doi":"10.1109/APAP.2011.6180609","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180609","url":null,"abstract":"A grid computing model is proposed in this paper and it will used in the power grid fault diagnosis. It includes the power grid computing system's structure, software service and hardware integration method. Though technology of grid computing is quite successful, its application to power system fault diagnosis is a deficiency. According to the five architecture layers of gird, a new power system fault diagnosis model is designed and it take the topology as the example to explain how to use its high performance computing method (or parallel computing method) and distributed environment to design a new intelligent algorithm with information fusion and multi-data resources in grid computing environment.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115544502","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 path searching for voltage profile analysis in power distribution system with MW PV station connections 带兆瓦级光伏电站的配电系统电压分布分析故障路径搜索
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180822
Yanliang Wang, Shuxi Xu, Zezhong Wang, Ping Kong, Xutao Mu, Yundong Xiao
{"title":"Fault path searching for voltage profile analysis in power distribution system with MW PV station connections","authors":"Yanliang Wang, Shuxi Xu, Zezhong Wang, Ping Kong, Xutao Mu, Yundong Xiao","doi":"10.1109/APAP.2011.6180822","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180822","url":null,"abstract":"Fault path search is the most important first step for voltage sag profile analysis. It is achieved by detecting the voltage profile decreasing in traditional method due to the limitation of voltage sag meters only recording the drop magnitude and start-stop time. However, metering voltages are often polluted by noises in field, and fault path is not single in complicated distribution systems, which present the challenge to it. This paper proposed a novel search algorithm base on the definitions: Boundary Points (BP), Feeder Section (FS) and Average Residual Voltage of Feeder Section (ARVFS). BP is used as the search points with FS as the search radius and ARVFS as the search object, so that the search speed is quicker and the noise-proof capability is strengthened. The fault point also can be located precisely with searching point by point in the end FS. Case simulations have proved the validity of the new algorithm.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124100811","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
Power flow unsolvable cases adjustment method based on grid static voltage stability 基于电网电压静态稳定的潮流不可解调节方法
2011 International Conference on Advanced Power System Automation and Protection Pub Date : 2011-10-01 DOI: 10.1109/APAP.2011.6180773
Feng Hong, Jinfu Chen, Jian Zuo
{"title":"Power flow unsolvable cases adjustment method based on grid static voltage stability","authors":"Feng Hong, Jinfu Chen, Jian Zuo","doi":"10.1109/APAP.2011.6180773","DOIUrl":"https://doi.org/10.1109/APAP.2011.6180773","url":null,"abstract":"The unsolvable power flow problem is one of the basic issues in dispatching automation, which frequently appears in the process of grid mode planning and Optimal Power Flow (OPF) analysis. To deal with this problem, a practical adjustment method based on grid weak point is proposed in this paper. This method use “lower power injection” method to calculate a similar power flow solution which also the system maximum load level in unsolvable case. According this solution, the system weak point can be found by the index based on local system operation parameters and external equivalent system model. Combined with sensitivity analysis to reschedule the active power of generators and reactive power compensation devices, so as to make the system maximum load level increase, eventually get the system power flow solution at the original load level. This method overcome the large calculation of optimize algorithm in unsolvable power flow problem and can be applied to large practical grid. In the meantime, this method has clear physical interpretation, operator can be involved during the process, have great value in application. The method is tested on IEEE14 nods system.","PeriodicalId":435652,"journal":{"name":"2011 International Conference on Advanced Power System Automation and Protection","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124202889","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
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