{"title":"Comparison of Frequency Converter Outages: A Case Study on the Swedish TPS System","authors":"Y. A. Mahmood, A. Ahmadi, R. Karim, U. Kumar, A.K. Verma, N. Fransson","volume":71,"journal":"International Journal of Electrical and Computer Engineering","pagesStart":1289,"pagesEnd":1297,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/3095","abstract":"
The purpose of this paper isunavailability of the two main types of conveSwedish traction power supply (TPS) system, i.e.static converter. The number of outages and the ouused to analyze and compare the unavailability oconverters. The mean cumulative function (MCF)analyze the number of outages and the unavailabthe forced outage rate (FOR) concept has been uoutage rates. The study shows that the outagesfailure occur at a constant rate by calendar timconverter stations, while very few stations havedecreasing rate. It has also been found that the stata higher number of outages and a higher outage ratcompared to the rotary converter types. The resultsthat combining the number of outages and the fgives a better view of the converters performasupport for the maintenance decision. In fact, usingdoes not reflect reality. Comparing these two indein identifying the areas where extra resources are maintenance planning and where improvementsoutage in the TPS system.KeywordsFrequency Converter, Forced OuCumulative Function, Traction Power Supply, ESystems.<\/p>\r\n","references":"[1] A. Pfeiffer, W. Scheidl, M. Eitzmann and E. Larsen. Modern rotary\r\nconverters for railway applications. Presented at Railroad Conference,\r\n1997. Proceedings of the 1997 IEEE\/ASME Joint. 1997.\r\n[2] L. Shi. Comparison of solid-state frequency converter and rotary\r\nfrequency converter in 400Hz power system. 2011.\r\n[3] NES Document TS02, \"Requirements on rolling stock in Norway and\r\nSweden regarding EMC with the electrical infrastructureand\r\ncoordination with the power supply and other vehicles,\" Technical\r\nSpecification from the NES Group, 2009.\r\n[4] C. Heising. Modelling of rotary converter in electrical railway traction\r\npower-systems for stability analysis. Electrical Systems for Aircraft,\r\nRailway and Ship Propulsion (ESARS) 2010.\r\n[5] N. Al-Masood, M. N. Sahadat, S. R. Deeba, S. Ahmad, G. A. K.\r\nBiswas, A. U. Elahi and N. M. Zakaria. Reliability evaluation of\r\nBangladesh power system using cumulant method. Presented at\r\nElectronics Computer Technology (ICECT), 2011 3rd International\r\nConference On. 2011.\r\n[6] Marko \u2500\u00eeepin, \"Reliability and performance indicators of power plants,\"\r\nin Assessment of Power System Reliability Methods and Applications,\r\nSpringer-Verlag London Limited 2011, Ed. 2011, pp. 197-214.\r\n[7] T. E. Ekstrom. Reliability\/availability guarantees of gas turbine and\r\ncombined cycle generating units. Industry Applications, IEEE\r\nTransactions On 31(4), pp. 691-707. 1995.\r\n[8] W. Nelson. An application of graphical analysis of repair data.\r\nQual. Reliab. Eng. Int. 14(1), pp. 49-52. 1998.\r\n[9] W. Nelson. Recurrent Events Data Analysis for Product Repairs,\r\nDisease Recurrences, and Other Applications 2003.\r\n[10] W. Meeker and L. Escobar, Statistical Methods for Reliability Data.\r\nWiley (New York), 1998.\r\n[11] Liu Fan-mao, Zhu Haiping, Shao Xinyu and Guo Lei. Simple plots for\r\nanalysis of the field reliability of horizontal machining centre. Presented\r\nat Intelligent Computation Technology and Automation (ICICTA), 2010\r\nInternational Conference On. 2010.\r\n[12] A. Z. Al Garni. Graphical techniques for managing field failures of\r\naircraft systems and components. J. Aircr. 46(2), pp. 608-616. 2009.\r\n[13] S. Niska. Measurements and Analysis of Electromagnetic Interferences\r\nin the Swedish Railway Systems 2008.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 71, 2012"}