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PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)最新文献

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A combination mode for a unified power flow controller in fault recovery and with harmonic filter 故障恢复中统一潮流控制器与谐波滤波器的组合方式
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897104
J. Dejvises, T. Green
{"title":"A combination mode for a unified power flow controller in fault recovery and with harmonic filter","authors":"J. Dejvises, T. Green","doi":"10.1109/ICPST.2000.897104","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897104","url":null,"abstract":"This paper addresses two issues in operation of a unified power flow controller (UPFC), enhancement of fault recovery and controller design accounting for filter dynamics. Performance of a UPFC is improved by a temporary modification of the UPFC into double static synchronous series compensator (SSSC) in order to double its capability in fault recovery mode. A battery is required as an energy source in the DC link of the double SSSC. The size of the battery for the SSSC has been be investigated. It was found that the double SSSC in fault recovery mode has almost twice the performance of the UPFC and the size of battery for the UPFC is reasonable for grid scale use. With the double SSSC in fault recovery mode, a combination control mode is suggested for the UPFC. One of the important parts of the UPFC is the filter at the output of the inverter. The function of the UPFC filter is to attenuate the harmonics generated by the inverter. In this paper a harmonic trap filter together with a low-pass filter are applied to the UPFC and investigated. Single-phase models are used to design cut-off frequencies whilst the d-q model is included in the UPFC controller design. It was found that if the filter dynamics are neglected in the control design, then the controllers response will be different. The test system used is a one-machine, two transmissions lines and an infinite busbar. All of the simulations were implemented using the EMTP. Additionally Matlab and Simulink programming environment were used to provide transfer function simulation for the controller design. The simulation results from both programs are compared.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122479297","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
Design of main transformer capacity for electrified railway power systems 电气化铁路电力系统主变容量设计
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.900075
C.S. Chen, H. Chuang, L. Fan
{"title":"Design of main transformer capacity for electrified railway power systems","authors":"C.S. Chen, H. Chuang, L. Fan","doi":"10.1109/ICPST.2000.900075","DOIUrl":"https://doi.org/10.1109/ICPST.2000.900075","url":null,"abstract":"This paper investigates the main transformer capacity of an electrified mass rapid transit (MRT) system. The motion equation of a train set is used to solve the mechanical power consumption along the main line according to the operation timetable, the passenger ridership, and various types of operation resistance. The dynamic load demand of traction transformers is derived by executing the DC load flow analysis for the network consisting of rectifiers, conducting rails, car-borne inverters, and three-phase induction motors. The AC load flow simulation is then applied to find the loading of main transformers in the substations. The unit commitment is applied to derive the proper transformer capacity to meet the annual system peak power demand and provide sufficient capacity reserve. To demonstrate the effectiveness of the proposed methodology, the Tamshui-Hsintien line of Taipei MRT network is selected for the design of MRT main transformers. It is found that the loading factor of main transformers has been enhanced dramatically and the cost effectiveness of transformer investment over the life cycle has been obtained.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"356 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122998827","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
Energy function for power systems with transmission losses: extension of the invariance principle 具有传输损耗的电力系统的能量函数:不变性原理的推广
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.900046
N. Bretas, L. Alberto
{"title":"Energy function for power systems with transmission losses: extension of the invariance principle","authors":"N. Bretas, L. Alberto","doi":"10.1109/ICPST.2000.900046","DOIUrl":"https://doi.org/10.1109/ICPST.2000.900046","url":null,"abstract":"In many engineering and physical problems, it is very hard to find a Lyapunov function satisfying the classical version of the LaSalle's invariance principle. This obstacle has been a great problem in the application of energetic methods to the stability analysis of power systems with more realistic models. In this work, an extension of the invariance principle, which does not require the Lyapunov function to be negative semi-definite, is used to support theoretically the proposal of a new energy function for power systems with transmission losses.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131177733","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
Site selection and economic risks for thermal power plant projects under the new Brazilian regulatory framework 巴西新法规框架下火电厂项目的选址与经济风险
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897137
D. Ramos, E. Fadigas, W. S. Lima
{"title":"Site selection and economic risks for thermal power plant projects under the new Brazilian regulatory framework","authors":"D. Ramos, E. Fadigas, W. S. Lima","doi":"10.1109/ICPST.2000.897137","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897137","url":null,"abstract":"This paper presents a study making an analysis of thermal plant implantation into the Brazilian South/Southeast/West interconnected power systems. Thus, an evaluation is given of the influence of some local parameters, in order to evaluate the best site for building the thermal power station. In addition to the site selection considerations, an economic risks analysis in the new scenario of the Brazilian electrical energy trading activity is carried out.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131393795","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
Power system measurement traceability in Australia 澳大利亚电力系统测量溯源
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898169
Y. Li, P. Pokorný
{"title":"Power system measurement traceability in Australia","authors":"Y. Li, P. Pokorný","doi":"10.1109/ICPST.2000.898169","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898169","url":null,"abstract":"The National Measurement Laboratory (NML) is responsible for the development, maintenance and dissemination of physical standards in Australia. This paper addresses some aspects of measurement traceability of high voltage equipment, itemising the reference systems maintained at NML, which are established through fundamental standards and/or international comparisons. Recently, much effort has been focused on the development of reference impulse voltage measurement systems, with clearly established traceability, to facilitate the adoption of the IEC high voltage measurement standard in Australia.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131452854","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
Grounding of optical fiber control cable in substation under lightning stroke 雷击下变电站光纤控制电缆的接地
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898195
Y. Tu, We-Won Han, Han-Goo Cho, Jinliang He, R. Zeng, Q. Su
{"title":"Grounding of optical fiber control cable in substation under lightning stroke","authors":"Y. Tu, We-Won Han, Han-Goo Cho, Jinliang He, R. Zeng, Q. Su","doi":"10.1109/ICPST.2000.898195","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898195","url":null,"abstract":"The optical fiber control cable in a substation would be destroyed due to the incorrect grounding method, when a lightning strike hits the substation. The method to generate interference on an optical fiber cable by lightning stroke was analyzed. Different grounding methods were comprehensively discussed by a numerical calculation method. The ideal grounding method for optical fiber cable is to ground the internal strengthening core and the outer metal sheath in the meantime. The electrical field intensity applied inside the optical fiber cable increases with the soil resistivity. The frequency of the interference source is an important factor to affect the interference electrical field generated inside the optical fiber cable. The metal strengthening core has a high potential when an interference source is applied, so the stroke from it to the interior of the terminal equipment should be avoided.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133914268","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 fuzzy logic tool for transformer fault diagnosis 变压器故障诊断的模糊逻辑工具
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.900067
Q. Su
{"title":"A fuzzy logic tool for transformer fault diagnosis","authors":"Q. Su","doi":"10.1109/ICPST.2000.900067","DOIUrl":"https://doi.org/10.1109/ICPST.2000.900067","url":null,"abstract":"Transformers have complicated winding structures and are subject to electrical, thermal and mechanical stresses. During the last few years, there has been a trend of continuous increase of transformer failures. It is therefore vital to correctly diagnose their incipient faults for safety and reliability of an electrical network. Various faults could occur in a transformer such as overheating, partial discharge and arcing, which can generate various fault-related gases. From dissolved gas analysis, the faults may be determined. The conventional interpretation methods such as IEC codes cannot determine the fault in many cases, especially if there is more than one type of fault existing in a transformer. This paper presents a fuzzy logic tool that can be used to diagnose multiple faults in a transformer and monitor the trend. It has been proved to be a very useful tool for transformer diagnosis and maintenance planning.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131824489","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: 21
Impact of generator leading power factor operation on system voltage and reactive power balance at low load 发电机先导功率因数运行对低负荷系统电压和无功平衡的影响
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.898146
Tao Wang, S. Liou, Dashan Zhou
{"title":"Impact of generator leading power factor operation on system voltage and reactive power balance at low load","authors":"Tao Wang, S. Liou, Dashan Zhou","doi":"10.1109/ICPST.2000.898146","DOIUrl":"https://doi.org/10.1109/ICPST.2000.898146","url":null,"abstract":"The article analyzes the relation between system voltage level and reactive power balance in detail. It presents that the reactive power demand of load is mainly balanced by grid capacitive reactive power in light flow for modern power systems. The authors analyze the different effect on system voltage level and reactive power balance between single generator leading power factor operation and many generators leading power factor operation. The viewpoint and thought is verified through the practical power system of Hubei Province.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132215259","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
A parallel tabu search based method for determining optimal allocation of FACTS in power systems 基于并行禁忌搜索的电力系统FACTS优化分配方法
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897170
H. Mori, Y. Goto
{"title":"A parallel tabu search based method for determining optimal allocation of FACTS in power systems","authors":"H. Mori, Y. Goto","doi":"10.1109/ICPST.2000.897170","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897170","url":null,"abstract":"This paper presents a parallel-tabu-search based method for maximizing the available transfer capability with the FACTS devices. The competitive and deregulated power market needs more flexible system operation. To meet the requirements, the FACTS devices have been developed to smooth power system operation and planning. However, it is hard to determine the optimal allocation and parameters of FACTS devices due to the complicated combinatorial optimization. In this paper, the parallel tabu search is proposed to evaluate them efficiently. The effectiveness of the proposed method is demonstrated in a sample system.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133041571","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: 124
A model of a micro-turbine line side converter 微型水轮机线侧变流器模型
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409) Pub Date : 2000-12-04 DOI: 10.1109/ICPST.2000.897142
E. Mollerstedt, A. Stothert
{"title":"A model of a micro-turbine line side converter","authors":"E. Mollerstedt, A. Stothert","doi":"10.1109/ICPST.2000.897142","DOIUrl":"https://doi.org/10.1109/ICPST.2000.897142","url":null,"abstract":"Power electronics systems such as converters are increasingly being used to connect small scale power generation systems to distribution networks. One result of such converter systems is the introduction of harmonics into the distribution system. This paper develops a generic converter and converter controller model that allows the investigation of the effect of converter controlled systems on distribution grids. The models are initially developed using simplifying assumptions, these assumptions are then relaxed and techniques for analyzing the more complicated system proposed.","PeriodicalId":330989,"journal":{"name":"PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115034318","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
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