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2010 5th International Conference on Critical Infrastructure (CRIS)最新文献

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Study of a novel fault current limiter on the basis of high speed switch and triggered vacuum switch 基于高速开关和触发真空开关的新型故障限流器的研究
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617487
Chun Zhao, Jiazheng Lu, Zhen Fang, Bo Li, Zhenglong Jiang
{"title":"Study of a novel fault current limiter on the basis of high speed switch and triggered vacuum switch","authors":"Chun Zhao, Jiazheng Lu, Zhen Fang, Bo Li, Zhenglong Jiang","doi":"10.1109/CRIS.2010.5617487","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617487","url":null,"abstract":"Limiting the short-circuit current is of great significance to keep the safe and steady running of the power system. A novel fault current limiter (FCL) is presented. A high speed switch is used to rapidly break the short-circuit current. A triggered vacuum switch (TVS) is used to discharge a precharged pulse capacitor so as to quench the arc in the high speed switch quickly and to realize the active transfer of the short-circuit current. A resistor is used as the current limiting component. The parameters of a FCL of 10 kV voltage level are designed. Simulations of the FCL in an oscillating circuit are performed by means of the ATP software. Experiments of a FCL sample device are also carried out in the oscillating circuit. The experimental results are in agreement with the simulation results. The current transfer characteristics and the current limiting effect are testified.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116006306","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
Research on fault line detection device in digital substation of non-effectively grounded system 非有效接地系统数字式变电站故障线路检测装置研究
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617535
Qi Zheng, Bai Ruixuan, Y. Yihan
{"title":"Research on fault line detection device in digital substation of non-effectively grounded system","authors":"Qi Zheng, Bai Ruixuan, Y. Yihan","doi":"10.1109/CRIS.2010.5617535","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617535","url":null,"abstract":"There are three different structures between process level and bay level in digital substations below 35kV nowadays; they are IEC61850-9-1 standard, IEC61850-9-2 standard and small analog signal transmission standard. Accounting for the features of three kinds of structures and special requirements of non-effectively grounded system fault line detection device, the design of line detection device is suggested in digital substation with three different structures. Also the advantages, disadvantages, commonality and technical economy of three designs have been deeply analyzed in this article. Considering the characteristic of electronic transformer and the demand for technical economy of system below 35kV, a distributive line-detection design based on small analog signal sampling is proposed in digital substation below 35kV, and this design turns out to be highest commonality and best technical economy.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124674778","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 probabilistic power flow of the distribution system with wind energy system 风电配电网的概率潮流研究
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617544
Shu-jun Yao, Yan Wang, Minxiao Hang, Xiaona Liu
{"title":"Research on probabilistic power flow of the distribution system with wind energy system","authors":"Shu-jun Yao, Yan Wang, Minxiao Hang, Xiaona Liu","doi":"10.1109/CRIS.2010.5617544","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617544","url":null,"abstract":"DG based on wind energy system (WES) has the probabilistic output power relied on natural conditions, the traditional deterministic load flow is not a suitable tool for the analyzing and maintaining distribution system. Aiming at this problem, this paper applies a probabilistic power flow (PLF) method to evaluate the influence of distributed generation with WES. Firstly, the probabilistic model of WES is established which considers the relationship between output power of WES and wind velocity. Secondly, instead of the conventional Gram-Charlier expansion, the model of combined cumulant and Cornish-Fisher expansion is applied to calculate the PLF. This model has the more convergence for on-Gaussian probabilistic density function. Lastly, the IEEE 34 distribution system with the modification by injecting the WES to some nodes is tested. The results show that the method in this paper is efficient and reasonable.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128483753","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: 4
Research of Faraday magneto-optical effect DC optical sensing method based on modulation and demodulation 基于调制解调的法拉第磁光效应直流光传感方法研究
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617498
Jun Liu, Meng Lu, Ji Yaoyao, Yansong Li, Qian Wang
{"title":"Research of Faraday magneto-optical effect DC optical sensing method based on modulation and demodulation","authors":"Jun Liu, Meng Lu, Ji Yaoyao, Yansong Li, Qian Wang","doi":"10.1109/CRIS.2010.5617498","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617498","url":null,"abstract":"With the development of HVDC project in State Strong Smart Grid, the Faraday magneto-optical effect optical current transformer has been paid more and more attention to. However, the signal to noise bands overlap in original Faraday effect DC optical current transformer causes its measurement accuracy to decrease. Therefore, this paper presents a Faraday magneto-optical effect DC optical sensing method based on modulation and demodulation. Moreover, a new Faraday effect DC optical current transformer measurement system is deduced and designed on this basis. Subsequently, this paper mainly studies and designs an AC modulated optical source. With data acquisition and analysis of several experiments by LabVIEW, the results prove that the optical source can steadily generate modulated light intensity. Based on the AC modulated optical source, combined with the DSP technology, a complete DC optical current measurement system is formed. The practicality of the designed DC optical current transformer system has been tested by experiments in this paper.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129544755","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: 4
Reliability evaluation for distribution system with distributed generators 分布式发电机配电系统可靠性评估
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617483
Yuqin Xu, Yingchao Wu
{"title":"Reliability evaluation for distribution system with distributed generators","authors":"Yuqin Xu, Yingchao Wu","doi":"10.1109/CRIS.2010.5617483","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617483","url":null,"abstract":"Distributed generator (DG), with its flexible power generation, environment-friendly advantages has been more widely used in distribution system, which has brought some influence to the traditional distribution network reliability evaluation. In this paper, two different models for conventional DG and wind turbine generator (WTG) are established for reliability evaluation, based on different energy sources and operation characteristics. This paper presents a technique to obtain the WTG output using statistical wind speed information, considering to the intermittent characteristics of wind power. On this basis, an improved minimal cut set algorithm is proposed to evaluate the reliability of distribution network with DG. Finally, the simulation of a typical distribution line with DG verifies the validity of this method.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128833829","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: 4
Synchrophasors in the IEEE C37.118 and IEC 61850 IEEE C37.118和IEC 61850中的同步相量
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617573
K. Martin
{"title":"Synchrophasors in the IEEE C37.118 and IEC 61850","authors":"K. Martin","doi":"10.1109/CRIS.2010.5617573","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617573","url":null,"abstract":"The concept of a power system synchronized phasor was introduced in the 1980s and standardized for the first time with the standard IEEE 1344. The measurement concept was further refined in the current synchrophasor standard, IEEE C37.118, completed and published in 2005. It is currently undergoing revision to fully define the measurement in all conditions including dynamic changes in the power system. In addition it has been split into measurement and communication parts to simplify harmonizing the data exchange provisions with the IEC 61850 standard. This paper summarizes the development of the synchrophasor concepts, standards development, and ongoing standards harmonization.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126691264","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
Application of CL multi-wavelet de-noising in partial discharge detection CL多小波去噪在局部放电检测中的应用
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617515
Yonggang Li, Yinghsu Song
{"title":"Application of CL multi-wavelet de-noising in partial discharge detection","authors":"Yonggang Li, Yinghsu Song","doi":"10.1109/CRIS.2010.5617515","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617515","url":null,"abstract":"In order to extract the weak partial discharge signals which have been submerged in the strong on-site background noise from power equipments, a new method is proposed based on the basic theory of CL multi-wavelet. In the first place, haar and balanced pre-processing method are used to pre-process the PD signals. And then, the vector thresholding method and the neighbouring coefficients method are used to de-noise. Lastly, the principle of translation-invariant multi-wavelet is applied to eliminate the Gibbs phenomenon. Besides, this paper compares the effect of the two de-noising methods based on different noise. After analysis and comparison of the results, the conclusion is obtained that the neighbouring coefficients method can achieve better de-noising effect. Finally, the method is applied to de-noise the test data of generator partial discharge. The results show that it has the ability to retain the original signal information.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114189860","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: 1
Research on evaluation system of emergency disposal plan for power plant incidents 电厂事故应急处置计划评价体系研究
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617567
An Chen, Z. Vale, Haijun Wang, Jimei Li, Yannan Wu
{"title":"Research on evaluation system of emergency disposal plan for power plant incidents","authors":"An Chen, Z. Vale, Haijun Wang, Jimei Li, Yannan Wu","doi":"10.1109/CRIS.2010.5617567","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617567","url":null,"abstract":"This paper starts with the analysis of the unusual inherence mechanism, from two aspects: accumulating and human error. We put forward twelve factors affected the decision of the emergency treatment plan in practice and summarized the evaluation index system combining with literature data. Then we screened out eighteen representative indicators by used the FDM expert questionnaire in the first phase. Hereafter, we calculated the weight of evaluation index and sorted them by the FAHP expert questionnaire, and came up with the frame of the evaluation rule by combined with the experience. In the end, the evaluation principles are concluded.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133498389","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
Application of distributed fault line selection device in digital substation 分布式故障选线装置在数字化变电站中的应用
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617505
Qi Zheng, Guo Rui, Y. Yihan
{"title":"Application of distributed fault line selection device in digital substation","authors":"Qi Zheng, Guo Rui, Y. Yihan","doi":"10.1109/CRIS.2010.5617505","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617505","url":null,"abstract":"At present, the small analog signal transmission is adopted between process level and bay level in most of the digital substation systems below 35kV. Considering the characteristic of the structure and the special request for the earth fault line selection device, the design of line selection device is proposed for the digital substations. With distributed structure, the device consists of two parts, i.e. the lower part and the upper part. The former takes samples from small analog signals and then upload the signals to upper part to complete line selection; the latter sends synchronized signals to the lower part to keep in pace with it. The ways to realize each section are deeply analyzed and site experiments have proved the correctness and feasibility of the technology.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"228 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133880070","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 study of complex torque coefficient approach's realization based on PSCAD/EMTDC 基于PSCAD/EMTDC的复合扭矩系数法的实现研究
2010 5th International Conference on Critical Infrastructure (CRIS) Pub Date : 2010-11-01 DOI: 10.1109/CRIS.2010.5617495
Wang Jin, Guo Chunlin, Xiao Xiangning, Zheng Rui
{"title":"The study of complex torque coefficient approach's realization based on PSCAD/EMTDC","authors":"Wang Jin, Guo Chunlin, Xiao Xiangning, Zheng Rui","doi":"10.1109/CRIS.2010.5617495","DOIUrl":"https://doi.org/10.1109/CRIS.2010.5617495","url":null,"abstract":"The method, complex torque coefficient approach, which is used to analyze the sub synchronous oscillation (SSO) problems with the help of PSCAD/EMTDC are recommended. While how to achieve the complex torque coefficient approach by time-domain simulation method effectively has not been specified. With the simulation study of different systems like HVDC system, AC system with series compensation device, etc, amplitude, injection time and additivity of injected oscillating torques are discussed. A set of conclusion to the method is drawn for reference.","PeriodicalId":206094,"journal":{"name":"2010 5th International Conference on Critical Infrastructure (CRIS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124843860","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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