{"title":"Expansion and reform process in India from transmission development integration perspective","authors":"S. Singh","doi":"10.1109/PESW.2000.849937","DOIUrl":"https://doi.org/10.1109/PESW.2000.849937","url":null,"abstract":"This paper dwells on the growth of India's power transmission sector, the metamorphosis it has undergone since independence and broad perspective culminating into the formation of a flexible and strong National Grid. The aim is to meet the perceived value of the esteemed customer, who seeks his power demand be met at all time, at the most economic cost with reliability and quality.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130844587","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}
{"title":"Stabilizing scheme application for improving power system security in Korea","authors":"T. Oh, Hak-Man Kim, Changmo Kim, Hyeunkeun Rju","doi":"10.1109/PESW.2000.849933","DOIUrl":"https://doi.org/10.1109/PESW.2000.849933","url":null,"abstract":"This paper describes the characteristics of electric power system and special stabilizing control schemes applied to improve system stability in Korea. As additional units of large generators were added to the existing generation sites with the reinforcement of the transmission facilities being delayed because of the difficulty of acquiring new sites and right-of-way, the system characteristics such as short circuit current, voltage regulation, and transient stability show the tendency of degradation. Among them, out-of-step problems of the large capacity generation stations were identified to be solved for improving the system security. This paper presents some typical special stabilizing control schemes that were applied to prevent loss of synchronism of all the generators at a site in Korea.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130845255","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}
{"title":"Modeling and dynamic simulations of new rotary frequency converter which consists of doubly-fed machine and induction machine","authors":"K. Hu, R. Yokoyama, K. Koyanagi","doi":"10.1109/PESW.2000.849999","DOIUrl":"https://doi.org/10.1109/PESW.2000.849999","url":null,"abstract":"The doubly-fed (or adjustable speed) pumped storage generating systems which have been newly developed with recent progress of power electronic technology as its setting can contribute not only to power system frequency control at night, but also to improvement of power system stability. In this paper, as an application of doubly-fed machine technologies of large capacity, a new rotary frequency converter is proposed that consists of MG set of a doubly-fed machine and an induction machine. Compared with a conventional rotary frequency converter that consists of a couple of synchronous machines, the new doubly-fed rotary frequency converter can control power transfer actively. The mathematical models of the proposed new converter and basic considerations for their fundamental control strategy based on the models are described, and the results of dynamic simulations for investigating the characteristics of control and operation of the converter in power system are presented.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130982997","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}
S. Birlasekaran, Y. Xingzhou, F. Fetherstone, R. Abell, R. Middleton
{"title":"Diagnosis and identification of transformer faults from frequency response data","authors":"S. Birlasekaran, Y. Xingzhou, F. Fetherstone, R. Abell, R. Middleton","doi":"10.1109/PESW.2000.847706","DOIUrl":"https://doi.org/10.1109/PESW.2000.847706","url":null,"abstract":"Identification of transformer faults using matched amplitude and phase response characteristics is presented. In frequency response analysis, fault diagnosis is done by detecting changes in frequency response tests. The vast amount of data up to 2 MHz needs to be quantified and characterized for the classification of faults. By a matched fitting with higher order transfer function up to 40, poles, zeros and their relative damping were determined in the frequency plane. Each set of data corresponding to faults is used to train a backpropagation ANN network. Out of 12 faults, the processing technique is able to identify the changes and classify the type of fault for on-line analysis. The location of fault and the severity of faults in the form of more sensitivity are brought out using this signal processing technique.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131103166","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}
{"title":"Design aspects of thyristor protected series capacitor systems (TPSC)","authors":"L. Kirschner, J. Bohn, K. Sadek","doi":"10.1109/PESW.2000.847207","DOIUrl":"https://doi.org/10.1109/PESW.2000.847207","url":null,"abstract":"Summary form only given as follows. Series capacitors in transmission lines are protected against overvoltages by employing different techniques. Arc-gaps with damping circuits have been used in the past with limited success due to their poor maintenance, inaccurate firing and arc erosion. Nowadays, MOV arresters are widely used to limit the transient overvoltage across the capacitors together with the mechanical by-pass switch that is employed only in case of permanent faults. This, however, may lead in many cases to huge amounts of MOV energy ratings that also need to be dissipated. This, in turn, results in large housing requirements and delays due to long cooling down times. With the advances achieved in thyristor technology, it is now possible to economically provide the same level of capacitor protection with smaller housing and fast cooling down times. The scheme can also be upgraded to full TCSC operation at a later stage. The paper presents the effect of the different fault strategies on the design aspects of the LTT thyristor valve. The novel features of the scheme are illustrated in light of the installation in the SCE transmission system at Vincent.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133482650","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}
{"title":"The optimal power flow problem in the new utility environment","authors":"M. L. Latorre, S. Granville","doi":"10.1109/PESW.2000.847605","DOIUrl":"https://doi.org/10.1109/PESW.2000.847605","url":null,"abstract":"In this paper, the authors extend the optimal power formulation to model market behavior in the AC network through the computation of Nash and Stakelberg type game equilibrium points based on generator and load benefit and cost functions. One of main objectives of such computation is to identify how transmission access agents can develop market power in electricity networks by taking advantage of the AC network laws and limitations.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133609471","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}
C. Boonseng, V. Kinnares, W. Koykul, S. Payakkaruang, M. Chikine, S. Kaewrut
{"title":"The future growth trend of neutral currents in three-phase computer power systems caused by voltage sags","authors":"C. Boonseng, V. Kinnares, W. Koykul, S. Payakkaruang, M. Chikine, S. Kaewrut","doi":"10.1109/PESW.2000.850176","DOIUrl":"https://doi.org/10.1109/PESW.2000.850176","url":null,"abstract":"This paper presents a summary of the power quality related concerns associated with the applications of the future growth trend of neutral currents in three-phase computer power systems. These concerns include power system harmonics and neutral current caused by voltage sags and short interruption. The neutral current characteristics under that condition are described. Methods for identifying these problems, analysis, determining their impact on utility and customer are also described. The EMTP simulation, field measurement and experimental results are used to verify the disturbance problems. The applications of regression model to predict neutral current growth trend during power line disturbances from measured data is proposed.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128837437","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}
{"title":"An orthogonal control scheme of linear switched-reluctance motor for magnetic levitated vehicle applications","authors":"Cheng-Tsung Liu, Sheng-Yang Lin","doi":"10.1109/PESW.2000.849964","DOIUrl":"https://doi.org/10.1109/PESW.2000.849964","url":null,"abstract":"An orthogonal scheme that can be applied to the control of a linear switched-reluctance motor (LSRM) is presented. By using this scheme, the motor reluctance forces, which are magnetically decoupled and position dependent, can be projected onto sets of stationary axes that are aligned with the motor fixed secondary poles. Hence the electromagnetic forces can be designed not only for driving the LSRM at its propulsive direction but also for alleviating the load at its normal direction. Consequently, the LSRM will be quite applicable for the desired operations of a magnetically levitated vehicle. A detailed algorithm and experimental results are provided to show the validity of the proposed scheme.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127654954","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}
{"title":"The investigation on Chinese nationwide interconnected grid in future","authors":"Jianbo Guo, Guocan Yao, Zhengxiong Xu, Yonghua Yin","doi":"10.1109/PESW.2000.849914","DOIUrl":"https://doi.org/10.1109/PESW.2000.849914","url":null,"abstract":"This paper describes a Chinese nationwide interconnected grid. Based on the results of power system analysis, some technical problems of the interconnected grid are discussed, such as the stability reduction, voltage instability, mutual impact of HVDC line fault on the sending and receiving system, loop flow, power oscillation and short-circuit current levels. In the view of the power system, the possibility of applying AC 800 kV and 1200 kV in China before the year 2020 is studied.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115554663","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}
{"title":"Generator contribution coefficients for pricing transmission services","authors":"C. Kirby, M. A. Rahman","doi":"10.1109/PESW.2000.850064","DOIUrl":"https://doi.org/10.1109/PESW.2000.850064","url":null,"abstract":"The Federal Energy Regulatory Commission (FERC) in the United States has acknowledged the shortcomings of the traditional contract path method as a mechanism for implementing transmission tariffs and has encouraged the development of alternate tariff schemes. This paper presents an alternate method for determining transmission facility usage by a generator. It outlines and discusses mathematical formulae for decomposing the total real power flow that is estimated to exist in a transmission facility. The decomposition produces numerical results that express a transmission line's total real power flow as the summation of the contributions made by each generator, thereby estimating each supplier's use of the system. The technique generalizes a linear expression that is derived from assumptions similar to those used in DC load flow analysis. Each expression is unique to the dispatch on the system at the time. The technique is applied to the AC power flow solution for a modified IEEE standard 14-bus system to evaluate its accuracy on loop feeds, radial feeds and for counter flows. Each generator's contribution to the line flow is totaled and compared to the original AC load flow solution to evaluate accuracy. The results are then applied to certain flow mile topics.","PeriodicalId":286352,"journal":{"name":"2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124417478","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}