Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321783
Wei Wei, H. Jia, Pei Zhang, Chengshan Wang, Jianzhong Wu, Stephen Lee
Development for a static voltage security assessment software package entitled power system voltage stability region (PSVSR) is presented in this paper. A novel power system stability analysis method named "security region" is utilized to develop this comprehensive software package. PSVSR has been implemented in standard C++ on Windows environment. It is constructed with three layers: user interface layer, kernel computation program layer and background support layer. Such structure makes PSVSR more robust, stable and expandable. PSVSR adequately utilizes advantages of the "security region" method and will give electric engineers global and symmetric information about system voltage stability and thermal limits in cut-set complex power space. The performance of the developed program has been tested with EPRI 1000-bus test system.
{"title":"Development of Power System Voltage Stability Region (PSVSR) for Static Voltage Security Assessment","authors":"Wei Wei, H. Jia, Pei Zhang, Chengshan Wang, Jianzhong Wu, Stephen Lee","doi":"10.1109/ICPST.2006.321783","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321783","url":null,"abstract":"Development for a static voltage security assessment software package entitled power system voltage stability region (PSVSR) is presented in this paper. A novel power system stability analysis method named \"security region\" is utilized to develop this comprehensive software package. PSVSR has been implemented in standard C++ on Windows environment. It is constructed with three layers: user interface layer, kernel computation program layer and background support layer. Such structure makes PSVSR more robust, stable and expandable. PSVSR adequately utilizes advantages of the \"security region\" method and will give electric engineers global and symmetric information about system voltage stability and thermal limits in cut-set complex power space. The performance of the developed program has been tested with EPRI 1000-bus test system.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"379 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":"123447572","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321902
A. Kazemi, S. Jamali, H. Shateri
This paper presents the measured impedance at the relaying point in the presence of a series connected flexible alternating current transmission system (FACTS) device, i.e. static synchronous series compensator (SSSC). The presence of SSSC on a transmission line has a great influence on the tripping characteristic of distance relays. Distance relay tripping characteristic itself depends on the power system structural conditions (short circuit levels at the line ends), pre-fault operational conditions (load angle and voltage magnitude ratio at the line ends), and especially the ground fault resistance. In the presence of SSSC, its controlling parameters as well as the connection point of the instrument transformers of distance relay affect the tripping characteristic. Here, the measured impedance at the relaying point is calculated due to concerning parameters.
{"title":"Effects of Instrument Transformers Connection point on Measured Impedance by Distance Relay in Presence of SSSC","authors":"A. Kazemi, S. Jamali, H. Shateri","doi":"10.1109/ICPST.2006.321902","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321902","url":null,"abstract":"This paper presents the measured impedance at the relaying point in the presence of a series connected flexible alternating current transmission system (FACTS) device, i.e. static synchronous series compensator (SSSC). The presence of SSSC on a transmission line has a great influence on the tripping characteristic of distance relays. Distance relay tripping characteristic itself depends on the power system structural conditions (short circuit levels at the line ends), pre-fault operational conditions (load angle and voltage magnitude ratio at the line ends), and especially the ground fault resistance. In the presence of SSSC, its controlling parameters as well as the connection point of the instrument transformers of distance relay affect the tripping characteristic. Here, the measured impedance at the relaying point is calculated due to concerning parameters.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"19 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":"121897508","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321827
Deng Yan
The paper introduces wide-area protection and emergency control system with the wide area measurement system. The methods for acquisition, transmission, and management of PMU data (Phasor Measurement Units), which have been applied in the engineering, are discussed at first. Then the feasibility application of WAMS data in power system is introduced on voltage stability, transient stability, local protection and SPSS (system PSS), Oscillatory and Angler stability. Some supported technologies are analyzed also.
{"title":"Wide-area Protection and Control System With WAMS Based","authors":"Deng Yan","doi":"10.1109/ICPST.2006.321827","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321827","url":null,"abstract":"The paper introduces wide-area protection and emergency control system with the wide area measurement system. The methods for acquisition, transmission, and management of PMU data (Phasor Measurement Units), which have been applied in the engineering, are discussed at first. Then the feasibility application of WAMS data in power system is introduced on voltage stability, transient stability, local protection and SPSS (system PSS), Oscillatory and Angler stability. Some supported technologies are analyzed also.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"97 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":"122057078","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321650
J. Wen, G. Tang, Y. F. Qiu, J.L. Zhu, K. Zha, Gao Xu
Synthetic test equipment is the most important operational test equipment for high voltage thyristor valves. In this paper, the main circuit analysis and design, control and protection strategy analysis and system design have been introduced. The commission results have validated that research and development of the synthetic test equipment is success, which will provide the test base, R&D platform, engineering experiments and technology consultation for high power electronics technology applied in electric power system.
{"title":"Research and Development of Synthetic Test Equipement for High Voltage Thyristor Valves","authors":"J. Wen, G. Tang, Y. F. Qiu, J.L. Zhu, K. Zha, Gao Xu","doi":"10.1109/ICPST.2006.321650","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321650","url":null,"abstract":"Synthetic test equipment is the most important operational test equipment for high voltage thyristor valves. In this paper, the main circuit analysis and design, control and protection strategy analysis and system design have been introduced. The commission results have validated that research and development of the synthetic test equipment is success, which will provide the test base, R&D platform, engineering experiments and technology consultation for high power electronics technology applied in electric power system.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","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":"122138504","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321579
Liang Xiaohua, Yin Xianggen, Chen Deshu, Wang Gang
This paper gives out a detail analysis on the fuzzy zone about the differential protection based on sampled values (the sample differential protection in short). At first it gives a brief introduction about the sample differential protection and illuminates some basic rules about the sequential fulfilled zone R and the repeated fulfilled zone S. Based on the relationship among R S and their medially unfulfilled zone, it unprecedentedly decomposes all the combination values of R S and jV into three cases. Then it gives out the mathematics expressions about the boundaries and fuzzy zone of all three cases. For easily unstanding this paper presents the 3-D illustration about the boundaries and the fuzzy zone. After analyzing it gives out some useful conclusions about how to choose R and S. It also makes some comparisons about the reliability and sensitivity between the two differential protections.
{"title":"Theoretical Analysis of Differential Protection Based on Sampled Vaules","authors":"Liang Xiaohua, Yin Xianggen, Chen Deshu, Wang Gang","doi":"10.1109/ICPST.2006.321579","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321579","url":null,"abstract":"This paper gives out a detail analysis on the fuzzy zone about the differential protection based on sampled values (the sample differential protection in short). At first it gives a brief introduction about the sample differential protection and illuminates some basic rules about the sequential fulfilled zone R and the repeated fulfilled zone S. Based on the relationship among R S and their medially unfulfilled zone, it unprecedentedly decomposes all the combination values of R S and jV into three cases. Then it gives out the mathematics expressions about the boundaries and fuzzy zone of all three cases. For easily unstanding this paper presents the 3-D illustration about the boundaries and the fuzzy zone. After analyzing it gives out some useful conclusions about how to choose R and S. It also makes some comparisons about the reliability and sensitivity between the two differential protections.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"2 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":"124461925","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321465
Y.H. Liu, X. R. Li, X. Zhu, Z.Q. Wu, S.J. Lin
In order to estimate & evaluate the macroscopic scale of power transmission & distribution network, transforming capacity, the number of substations, line-length and the number of loops are put forward as scale indexes to describe the planning scale; social electricity consumption, highest load, population, and so on, are put forward as influence factors of the scale indexes. The rule of correlation between scale indexes and their leading influence factors is analyzed with grey theory based on data in statistical yearbooks. And by means of analytic hierarchy process (AHP)-based method, integrated estimation & evaluation model are built up to make reasonable quantitative estimation of transmission & distribution network macroscopic scale of some district in Hunan province in China. The sound result shows that it is a meaningful research on estimating transmission & distribution network macroscopic scale.
{"title":"Quantitatively Estimating & Evaluating Macroscopic Scale of Power Transmission & Distribution Network","authors":"Y.H. Liu, X. R. Li, X. Zhu, Z.Q. Wu, S.J. Lin","doi":"10.1109/ICPST.2006.321465","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321465","url":null,"abstract":"In order to estimate & evaluate the macroscopic scale of power transmission & distribution network, transforming capacity, the number of substations, line-length and the number of loops are put forward as scale indexes to describe the planning scale; social electricity consumption, highest load, population, and so on, are put forward as influence factors of the scale indexes. The rule of correlation between scale indexes and their leading influence factors is analyzed with grey theory based on data in statistical yearbooks. And by means of analytic hierarchy process (AHP)-based method, integrated estimation & evaluation model are built up to make reasonable quantitative estimation of transmission & distribution network macroscopic scale of some district in Hunan province in China. The sound result shows that it is a meaningful research on estimating transmission & distribution network macroscopic scale.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"1 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":"129496424","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321496
Zhou Kongjun, Lian Haijun, Hou Xingzhe
This article has analyzed some questions which exist in the work of watthour meter management, introduced the concept of LCC, the constitution of LCC, and the management of LCC, has emphatically analyzed the LCC constitution of watthour meter, and has carried on the computation and the analysis to several kinds of single-phase watthour meter, elaborated the application of LCC theory on the watthour meter management.
{"title":"The Application of LCC Theory on the Watthour Meter Management","authors":"Zhou Kongjun, Lian Haijun, Hou Xingzhe","doi":"10.1109/ICPST.2006.321496","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321496","url":null,"abstract":"This article has analyzed some questions which exist in the work of watthour meter management, introduced the concept of LCC, the constitution of LCC, and the management of LCC, has emphatically analyzed the LCC constitution of watthour meter, and has carried on the computation and the analysis to several kinds of single-phase watthour meter, elaborated the application of LCC theory on the watthour meter management.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"11 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":"129893259","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321722
Ding Taigang, Dong Zhiguo
Switchover manipulation is very important to ensure the safe and stable running of power network. In the paper the application state and traditional mode of the existing switchover manipulation are analyzed and studied; the intelligent man-machine system is framed, integrated and evaluated; the concept and method of "secondary rules" for secondary protection on the basis of conducting "five prohibits" manipulation of the primary equipment are proposed; and the human mental and physiological behaviors are discussed thus revealing the meaning of man-machine system.
{"title":"Study of Intelligence-based Man-machine System Applied in Switchover Manipulation of Power Network","authors":"Ding Taigang, Dong Zhiguo","doi":"10.1109/ICPST.2006.321722","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321722","url":null,"abstract":"Switchover manipulation is very important to ensure the safe and stable running of power network. In the paper the application state and traditional mode of the existing switchover manipulation are analyzed and studied; the intelligent man-machine system is framed, integrated and evaluated; the concept and method of \"secondary rules\" for secondary protection on the basis of conducting \"five prohibits\" manipulation of the primary equipment are proposed; and the human mental and physiological behaviors are discussed thus revealing the meaning of man-machine system.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"17 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":"128470098","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321565
Wei Zhao, X. Bai, Jian Ding, Z. Fang, Zaihua Li, Z. Zhou
In this paper, a new fault diagnosis approach in large scale power grid based on Bayesian network and MCMC method is proposed for large scale power grid. Tow models of Bayesian network for constructing the Bayesian network of power grid are established. The main idea for Bayesian network approach is to compute the posterior probabilities of the fault nodes of the Bayesian network in MCMC method so that the fault in the power grid can be diagnosed. With the capacity of revealing relationships among data in model mentioned above, this approach highly improves the accuracy of fault diagnosis and is especially suitable for those environments with imperfect and uncertain information. Results of the testing example prove that the approach proposed is correct, effective and has potential for application of real-time fault diagnosis.
{"title":"A New Uncertain Fault Diagnosis Approach of Power System Based on Markov Chain Monte Carlo Method","authors":"Wei Zhao, X. Bai, Jian Ding, Z. Fang, Zaihua Li, Z. Zhou","doi":"10.1109/ICPST.2006.321565","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321565","url":null,"abstract":"In this paper, a new fault diagnosis approach in large scale power grid based on Bayesian network and MCMC method is proposed for large scale power grid. Tow models of Bayesian network for constructing the Bayesian network of power grid are established. The main idea for Bayesian network approach is to compute the posterior probabilities of the fault nodes of the Bayesian network in MCMC method so that the fault in the power grid can be diagnosed. With the capacity of revealing relationships among data in model mentioned above, this approach highly improves the accuracy of fault diagnosis and is especially suitable for those environments with imperfect and uncertain information. Results of the testing example prove that the approach proposed is correct, effective and has potential for application of real-time fault diagnosis.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"21 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":"128226757","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}
Pub Date : 2006-10-01DOI: 10.1109/ICPST.2006.321570
Xianbo Ke, Weixin Gao
This paper presents a new algorithm, which is based on Hopfield neural network, to plan distribution power network. The algorithm changes distribution network planning problem into a directed graph-planning problem. The Hopfield neural network is not designed to decide which alternative line should be selected, but to decide the in-degree of each node, so the calculation result is a radical directed graph. By this way, the distribution network is determined simultaneously. The energy function and algorithm for planning the distribution network are also given. An example shows the proposed Hopfield neural network can successfully plan distribution power network.
{"title":"A New Algorithm for Distribution Network Planning","authors":"Xianbo Ke, Weixin Gao","doi":"10.1109/ICPST.2006.321570","DOIUrl":"https://doi.org/10.1109/ICPST.2006.321570","url":null,"abstract":"This paper presents a new algorithm, which is based on Hopfield neural network, to plan distribution power network. The algorithm changes distribution network planning problem into a directed graph-planning problem. The Hopfield neural network is not designed to decide which alternative line should be selected, but to decide the in-degree of each node, so the calculation result is a radical directed graph. By this way, the distribution network is determined simultaneously. The energy function and algorithm for planning the distribution network are also given. An example shows the proposed Hopfield neural network can successfully plan distribution power network.","PeriodicalId":181574,"journal":{"name":"2006 International Conference on Power System Technology","volume":"75 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":"127270146","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}
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