Fault Location In Distribution Systems Based On Smart Feeder Meters

This paper proposes a fault-location method based on smart feeder meters with voltage sag monitoring capability. The main idea is to explore voltage measurements from monitors placed in different buses of distribution systems to estimate the fault location. The estimation is achieved by relating the voltage deviation measured by each meter to the fault current calculated based on the bus impedance matrix, considering the fault in different points. In order to improve the method accuracy, the loads are represented by constant impedance models and included into the bus impedance matrix. The performance of the proposed method is demonstrated by using a real distribution system. Sensitivity studies results show that the method is robust since it has good performance for different values of fault resistance, quantity, and location of the smart meters. © 1986-2012 IEEE.291251260Güngör, C.V., Sahin, D., Kocak, T., Ergüt, S., Buccella, C., Cecati, C., Hancke, G.P., Smart grid technologies: Communication technologies and standards (2011) IEEE Trans. Ind. Inf., 7 (4), pp. 529-539. , NovPopa, M., Data collecting from smart meters in an advanced metering Infrastructure (2011) Proc. 15th IEEE Int. Conf. Intell. Eng. Syst., pp. 137-142Luan, W., Low cost feeder monitoring solution in support of utility operations (2010) Proc. CIGRE Conf. Power Syst, , Vancouver, BC, CanadaKezunovic, M., Smart fault location for smart grids (2011) IEEE Trans. Smart Grid, 2 (1), pp. 11-22. , MarRodrigo, P.D., Pahwa, A., Boyer, J.E., Location of outages in distribution systems based on statistical hypotheses testing (1996) IEEE Transactions on Power Delivery, 11 (1), pp. 546-551Mak, S.T., A synergistic approach to using AMR and intelligent electronic devices to determine outages in a distribution network (2006) Proc. Power Systems Conf.e: Advanced Meter., Protect., Control, Commun., Distrib. Resources, Clemson, SC, pp. 447-453Pradhan, A.K., Routray, A., Applying distance relay for voltage sag source detection (2005) IEEE Transactions on Power Delivery, 20 (1), pp. 529-531. , DOI 10.1109/TPWRD.2004.839741Tayjasanant, T., Li, C., Xu, W., A resistance sign-based method for voltage sag source detection (2005) IEEE Transactions on Power Delivery, 20 (4), pp. 2544-2551. , DOI 10.1109/TPWRD.2005.852341Parsons, A.C., Grady, W.M., Powers, E.J., Soward, J.C., A direction finder for power quality disturbances based upon disturbance power and energy (2000) IEEE Trans. Power Del., 15 (3), pp. 1081-1086. , JulWang, B., Xu, W., Pan, Z., Voltage sag state estimation for power distribution systems (2005) IEEE Transactions on Power Systems, 20 (2), pp. 806-812. , DOI 10.1109/TPWRS.2005.846174Han, F., Yu, X., Al-Dabbagh, M., Wang, Y., Locating phase-toground short-circuit faults on radial distribution lines (2007) IEEE Trans. Ind. Electron., 54 (3), pp. 1581-1589. , JunPereira, R.A.F., Da Silva, L.G.W., Kezunovic, M., Mantovani, J.R.S., Improved fault location on distribution feeders based on matching during-fault voltage sags (2009) IEEE Trans. Power Del., 24 (2), pp. 852-862. , AprLotfifard, S., Kezunovic, M., Mousavi, M.J., Voltage sag data utilization for distribution fault location (2011) IEEE Trans. Power Del., 26 (2), pp. 1239-1246. , AprBrahma, S.M., Fault location in power distribution system with penetration of distributed generation (2011) IEEE Trans. Power Del., 26 (3), pp. 1545-1553. , JulSolvang, T., Aleixo, L., Seljeseth, H., Power quality measurement capabilities of smart energy meters (2010) Int. Conf. Renew. Energies Power Qual, , presented at the Granada, Spain, MarBrown, H.E., (1975) Solution of Large Networks by Matrix Methods, , New York: WileyPereira, R.A.F., Localização de faltas em alimentadores de distribuição de energia elétrica usando mediçõ es esparsas de tensões (in Portuguese) (2007) Ph. D. Dissertation, , Univ. Estadual Paulista, São Paulo, Brazilhttp://www.dee.feis.unesp.br/pos/teses/arquivos/031- tese_rodrigo_aparecido_fernandes_pereira.pdf, [Online](1992) Alternative Transients Program (ATP), , Portland OR: Rule Book Canadian/American EMTP users Grou

An Analytical Insight Into Large-disturbance Stability Of Doubly Fed Induction Generators

This short communication presents an analytical method for assessing the stability of doubly fed induction generators. The method is based on the concept of critical rotor speed and it provides insights into the influence of the voltage applied to the rotor windings on the generator stability margin. This information can be useful to plan the converter rate and trace control strategies.1222932Rahimi, M., Parniani, M., Grid-fault ride-through analysis and control of wind turbines with doubly fed induction generators (2010) Electr. Pow. Syst. Res., 80 (2), pp. 184-195Morren, J., De Haan, S.W.H., Ride through of wind turbines with doubly-fed induction generator during a voltage dip (2005) IEEE Trans. Energy Convers., 20 (2), pp. 435-441Gautam, D., Vittal, V., Harbour, T., Impact of increased penetration of dfig-based wind turbine generators on transient and small signal stability of power systems (2009) IEEE Trans. Power Syst., 24 (3), pp. 1426-1434Slootweg, J., Kling, W., The impact of large scale wind power generation on power system oscillations (2003) Electr. Pow. Syst. Res., 67 (1), pp. 9-20Jauch, C., Srensen, P., Norheim, I., Rasmussen, C., Simulation of the impact of wind power on the transient fault behavior of the nordic power system (2007) Electr. Pow. Syst. Res., 77 (2), pp. 135-144Elkington, K., Knazkins, V., Ghandhari, M., On the stability of power systems containing doubly fed induction generator-based generation (2008) Electr. Pow. Syst. Res., 78 (9), pp. 1477-1484Kundur, P., Power System Stability and Control (1994) EPRI Power System Engineering Series, , McGraw-Hill, Inc. New YorkSamuelsson, O., Lindahl, S., On speed stability (2005) IEEE Trans. Power Syst., 20 (2), pp. 1179-1180Grilo, A.P., Mota, A.A., Mota, L.T.M., Freitas, W., An analytical method for analysis of large-disturbance stability of induction generators (2007) IEEE Trans. Power Syst., 22 (2), pp. 1861-186

An analytical insight into large-disturbance stability of doubly fed induction generators

This short communication presents an analytical method for assessing the stability of doubly fed induction generators. The method is based on the concept of critical rotor speed and it provides insights into the influence of the voltage applied to the rotor windings on the generator stability margin. This information can be useful to plan the converter rate and trace control strategies1222932CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPnão temnão temnão te

Analysis Of Distance Based Fault Location Methods For Smart Grids With Distributed Generation

This paper shows analyses of the performance of fault location methods in power distribution systems with and without distributed generation (DG). These analyses are based on the investigation of the impact of DGs on the efficiency of important fault location methods. The fault location is assessed by the impedance, calculated at the substation using a distance (or impedance) relay. The impedance based fault location methods need few information, are simple and relatively accurate. However, most of the existing fault location methods were not developed/tested taking into account the new characteristics of distribution networks, such as the inclusion of DGs. Due to the increase in DG penetration and the high incidence of faults in distribution systems, it is necessary to study fault location techniques in the presence of DGs. The results will support the choice of suitable fault location methods to be implemented in smart grids with distributed generation. © 2013 IEEE.Warrington, A., (1968) Protective Relays, Their Theory and Practice, 2. , London: Chapman and HallDas, R., (1998) Determining the Locations of Fault in Distribution Systems, , Ph.D. dissertation, University of Saskatchewan, Saskatoon, CanadaMorales-España, G., Mora-Flórez, J., Vargas-Torres, H., Fault location method based on the determination of the minimum fault reactance for uncertainty loaded and unbalanced power distribution systems (2010) IEEE/PES T&D-LA, pp. 803-809. , NovGirgis, A., Fallon, C., Lubkerman, D., A fault location technique for rural distribution feeders (1993) IEEE Trans. Ind. Appl., 26 (6), pp. 1170-1175Novosel, D., Hart, D., Myllymaki, J., (1998) System for Locating Faults and Estimating fault resistance in distribution networks with tapped loads, , US Patent number 5,839,093Yang, L., Springs, C., (1998) One Terminal Fault Location System that Corrects for Fault Resistance Effects, , US Patent number 5,773,980Saha, M., Rosolowski, E., (2002) Method and Device of Fault Location for Distribution Networks, , US Patent number 6,483,435Aggarwal, R.K., Aslan, Y., Johns, A.T., An interactive approach to fault location on overhead distribution lines with load taps (1997) IEEE Developments in Power System Protection, pp. 184-187. , Conference Publication No. 434(2013) Generation Capacity of the Brazilian State Mato Grosso, , http://www.aneel.gov.br/aplicacoes/ResumoEstadual/GeracaoTipoFase.asp? tipo=5&fase=3&UF=MT:MATO%20GROSSO, [in Portuguese]. Accessed: JunMora-Florez, J., Melendez, J., Carrillo-Caicedo, G., Comparison of impedance based fault location methods for power distribution systems (2008) Electric Power Systems Research, 78 (4), pp. 657-666. , DOI 10.1016/j.epsr.2007.05.010, PII S037877960700123