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Applying multi-criterion optimization to select the section of cable lines for power grids
Design, manufacturing and operation of oil and gas sector equipment and facilities

Authors: Mikhail S. ERSHOV was born in 1952; he graduated from Gubkin Moscow Institute of Petrochemical and Gas Industry in 1979. He is Head of the Department of Theoretical Electrical Engineering and Electrification of Oil and Gas Industry at Gubkin Russian State University of Oil and Gas. He is Doctor of Technical Sciences, Professor. He has publishe d over 180 scientific papers in the field of electrical systems in the oil and gas industry. E-mail: msershov@yandex.ru
Julia A. MAKEROVA graduated from Gubkin Russian State University of Oil and Gas in 2009. She is a postgraduate student of the Department of Theoretical electrical engineering and electrification of oil and gas industry at Gubkin Russian State University of Oil and Gas. Her research interests are: reliability of power supply systems. E-mail: makerova@gmail.com

Abstract: The values of current density for the economic current density for pricing of 1980 and 2010 are calculated. The calculated values of economic current density are compared with standard values. The spread of economic current densities depending on the price of electricity in December 2010 (by region) and the price of cable products (prices from multiple vendors) is shown. On the example of a typical power supply circuit of gas turbine compressor station a method for selecting the cable line sections using the methods of multi-criterion optimization is proposed. In analyzing this issue, all studies were conducted on the example of the four types of cables: with aluminum and copper conductors, paper and plastic insulation and voltage of 6 kV and 10 kV.

Index UDK: 621.3/31

Keywords: power engineering, energy efficiency, power supply, electrical networks, economic current density, cable size, cable selection, multi-criterion optimization