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2006 IEEE Power India Conference最新文献

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Implementation of modern heuristic techniques for solution of economic dispatch problem with valve point loading 采用现代启发式技术求解具有阀点负荷的经济调度问题
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632583
R. Rajathy, S. Ilayaraja, C. Savitha, Harish Kumar
{"title":"Implementation of modern heuristic techniques for solution of economic dispatch problem with valve point loading","authors":"R. Rajathy, S. Ilayaraja, C. Savitha, Harish Kumar","doi":"10.1109/POWERI.2006.1632583","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632583","url":null,"abstract":"This paper presents an efficient and reliable evolutionary programming based algorithm for solving economic load dispatch problem with valve point loading. The superiority of EP and HEP methods has been demonstrated for 3 unit system by performing valve point curves including losses. It has been observed that the HEP outperforms the other methods in solving power system economic load dispatch problem in terms of convergence rate, and quality and success rate","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132556300","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
Effects of instrument transformers location on measured impedance by distance relay in presence of UPFC 在UPFC存在下，距离继电器测量变压器位置对阻抗的影响
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632634
S. Jamali, M. Kalantar, H. Shateri
{"title":"Effects of instrument transformers location on measured impedance by distance relay in presence of UPFC","authors":"S. Jamali, M. Kalantar, H. Shateri","doi":"10.1109/POWERI.2006.1632634","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632634","url":null,"abstract":"This paper presents the measured impedance at the relaying point in the presence of a flexible alternating current transmission system (FACTS) device, i.e. unified power flow controller (UPFC). The presence of UPFC 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 UPFC, 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":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114495024","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
An extended Markov model to determine the reliability of protective system 一种确定防护系统可靠性的扩展马尔可夫模型
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632549
H. Seyedi, M. Fotuhi, M. Sanaye-Pasand
{"title":"An extended Markov model to determine the reliability of protective system","authors":"H. Seyedi, M. Fotuhi, M. Sanaye-Pasand","doi":"10.1109/POWERI.2006.1632549","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632549","url":null,"abstract":"In this paper a reliability model for power transformer protection is proposed. The model is an extension of a previously proposed Markov model for transmission line protection. Optimum routine test and self checking intervals of the power transformer protection system are determined using the extended Markov model","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128595049","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: 25
Fault diagnosis of power system using neural Petri net and fuzzy neural Petri net 基于神经Petri网和模糊神经Petri网的电力系统故障诊断
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632569
P. Binh, N. Tuyen
{"title":"Fault diagnosis of power system using neural Petri net and fuzzy neural Petri net","authors":"P. Binh, N. Tuyen","doi":"10.1109/POWERI.2006.1632569","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632569","url":null,"abstract":"In previous study Petri net models were developed for detecting fault location in power system. In the current work, we proposed two models to diagnose the fault: the neural Petri net (NPN) and the fuzzy neural Petri net (FNPN). These models based on underlying Petri net. When the faults occur in power system, it is inevitable that a great amount data transmitted to the control center, but there are some incomplete and uncertain information of protective relays and circuit breaker (CB). Two class of Petri net called the NPN and FNPN, can be used for detection. The final diagnostic report contains information about the location of fault. The developed methodology is tested using an actual power system. Fast and accurate results are obtained","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133868970","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: 12
ANFIS based soft-starting and speed control of AC voltage controller fed induction motor 基于ANFIS的交流电压控制器异步电动机软起动与调速控制
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632611
M. Ayyub
{"title":"ANFIS based soft-starting and speed control of AC voltage controller fed induction motor","authors":"M. Ayyub","doi":"10.1109/POWERI.2006.1632611","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632611","url":null,"abstract":"An intelligent AC voltage controller is proposed for the control of induction motor. It controls the motor speed by adjusting the firing angles of the thyristors. Adaptive network fuzzy inference system (ANFIS) based controller was designed for open-loop sensor less control. The results obtained were satisfactory and promising. In addition to simplicity, stability, and high accuracy such controller gives soft starting. It is suitable to control induction motor as a soft starter and speed adjustment in compressors, blowers, fans, pumps, and many other applications","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116408524","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: 14
Fuzzy-expert approach for voltage-reactive power dispatch 电压无功调度的模糊专家方法
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632513
D. Thukaram, G. Yesuratnam
{"title":"Fuzzy-expert approach for voltage-reactive power dispatch","authors":"D. Thukaram, G. Yesuratnam","doi":"10.1109/POWERI.2006.1632513","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632513","url":null,"abstract":"The voltage stability control problem has become an important concern for utilities transmitting power over long distances. This paper presents an approach using fuzzy set theory for reactive power control with the purpose of improving the voltage stability of a power system. To minimize the voltage deviations from pre-desired values of all the load buses, using the sensitivities with respect to reactive power control variables form the basis of the proposed fuzzy logic control (FLC). Control variables considered are switchable VAr compensators, on load tap changing (OLTC) transformers and generator excitations. Voltage deviations and controlling variables are translated into fuzzy set notations to formulate the relation between voltage deviations and controlling ability of controlling devices. The developed fuzzy system is tested on a few simulated practical Indian power systems and some IEEE standard test systems. The performance of the fuzzy system is compared with conventional optimization technique and results obtained are encouraging. Results obtained for a 24-node equivalent EHV system of part of Indian southern grid and IEEE New England 39-bus system are presented for illustration purposes. The proposed fuzzy-expert technique is found suitable for on-line applications in energy control centre as the solution is obtained fast with significant speedups","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116534451","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: 12
Improved power quality AC-DC flyback converter for variable speed permanent magnet synchronous motor drive 用于变速永磁同步电机驱动的改进型交-直流反激变换器
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632506
B. Singh, B.P. Singh, S. Dwivedi
{"title":"Improved power quality AC-DC flyback converter for variable speed permanent magnet synchronous motor drive","authors":"B. Singh, B.P. Singh, S. Dwivedi","doi":"10.1109/POWERI.2006.1632506","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632506","url":null,"abstract":"This paper deals with the analysis and design of a high frequency isolated AC-DC flyback converter in discontinuous current mode (DCM) of operation used for power quality improvement at AC mains in vector controlled permanent magnet synchronous motor (PMSM) drive. The design of the flyback converter is carried out to feed a vector controlled PMSM drive system. Modeling and simulation are performed in a standard PSIM software environment. The obtained results demonstrate the effectiveness in improving the power quality at AC mains in the PMSM drive system","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124704486","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
Application of fuzzy inference to electric load clustering 模糊推理在电力负荷聚类中的应用
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632594
W. Zalewski
{"title":"Application of fuzzy inference to electric load clustering","authors":"W. Zalewski","doi":"10.1109/POWERI.2006.1632594","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632594","url":null,"abstract":"In distribution system, bus load estimation is complicated because system load is usually monitored at only a few points. As a rule receiving nodes are not equipped with stationary measuring instruments so measurements of loads are performed sporadically. In general, the only information commonly available regarding loads, other than major distribution substations and equipment installations, is billing cycle customer kWh consumption. In order to model system uncertainty, inexactness, and random nature of customers' demand, a fuzzy system approach is proposed. This paper presents application possibilities of the fuzzy inference method to the electrical load modeling. Clustering of load profiles in different part of system was used to classify the substations. A regression model, expressing the correlation between a substation peak load and a set of customer features (explanatory variables), existing in the substation population, is determined. Simulation studies have been performed to demonstrate the efficiency of the proposed scheme and an effect of different parameters on its accuracy on the basis of actual data obtained at distribution system substations","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"109 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126159874","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: 9
Modeling and simulation of dv/dt filters for AC drives with fast switching transients 具有快速开关瞬变的交流驱动器dv/dt滤波器的建模与仿真
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632585
B. Basavaraja, D. Siva Sarma
{"title":"Modeling and simulation of dv/dt filters for AC drives with fast switching transients","authors":"B. Basavaraja, D. Siva Sarma","doi":"10.1109/POWERI.2006.1632585","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632585","url":null,"abstract":"Many of today's induction machines are operated using variable speed drives (VSD). VSDs are used for controlling the speed of induction machine by adjusting the amplitude and frequency of the AC voltage. These adjustments are made by advanced technology in semiconductors, which are faster switching devices. Faster switching reduces the switching power loss, requiring less heat sink, thus enabling drives to become more efficient and smaller, and this also helps to reduce cost. Along with the better performance enabled by the high switching speed and increased switching frequency, they have also raised several concerns related to the consequences of high speed switching. One of these concerns is the over-voltage that appears at the motor terminals due to the impedance mismatch between the power cable and the motor. In this paper, overvoltages at the motor terminal are analyzed and accurate simulation models of different filters are designed to reduce the overvoltage problems. The models can be readily implemented using computational tools like Matlab, thereby providing a convenient method to develop the best dv/dt filter solution for a particular drive to reduce the over voltage & hence increases the life of the motor","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129751820","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
Harmonic distortion in a modern cement industry-a case study 现代水泥工业中的谐波失真——一个案例研究
2006 IEEE Power India Conference Pub Date : 2006-06-05 DOI: 10.1109/POWERI.2006.1632630
V. Suresh Kumar, P. Kannan, V. Saravanan
{"title":"Harmonic distortion in a modern cement industry-a case study","authors":"V. Suresh Kumar, P. Kannan, V. Saravanan","doi":"10.1109/POWERI.2006.1632630","DOIUrl":"https://doi.org/10.1109/POWERI.2006.1632630","url":null,"abstract":"Operation of cement industry with large number of non linear load has an impact on the power quality at the connected electric network. Harmonic distortion is one of the most important phenomena, which affects the plant distribution network as well as grid performance. This paper provides an in depth discussion on harmonic distortion taking place in the cement plant power system. A case study, to determine where a significant amount of harmonic currents or voltages exists in the system is performed using power quality analyzer. From these measurements and subsequent calculations, the impact of harmonics is analyzed. It is found that the harmonic distortion is invariably present with in the distribution system of the plant as well as in the grid side","PeriodicalId":191301,"journal":{"name":"2006 IEEE Power India Conference","volume":"55 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120881642","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: 10
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