Sectionalizing and Redundancy of the 0.38 kV Ring Electrical Network: Mathematical Modeling Schematic Solutions

Alexander Vinogradov, Alina Vinogradova, Vadim Bolshev and Alexander Ivanovich Psarev
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Alexander Vinogradov: Federal Scientific Agroengineering Centre VIM, Moscow, Russian Federation
Alina Vinogradova: Federal Scientific Agroengineering Centre VIM, Moscow, Russian Federation
Vadim Bolshev: Federal Scientific Agroengineering Centre VIM, Moscow, Russian Federation
Alexander Ivanovich Psarev: Orel State Agrarian University, Oryol, Russian Federation

International Journal of Energy Optimization and Engineering (IJEOE), 2019, vol. 8, issue 4, 15-38

Abstract: The use of power line sectionalizing and power line redundancy in 0.38 kV networks entails the need to take into account the fact that currents and voltages can vary significantly at different points of the network. The article proposes a mathematical model to solve this problem. The mathematical model is based on the method of phase coordinates. Using mathematical modeling, the article determines the voltages and currents in the sections of the backup line after the automatic load transfer switch is activated. The article also proposes an improvement in the scheme of the power line sectionalizing unit. The sectionalizing unit scheme is suggested to be modified with a bypass circuit and the installation of a voltage indicator for signaling the voltage presence on the lower contacts of the switch.

Date: 2019
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