Analysis of the number of switches of on-load tap changer of a power transformer for field substation, taking into account discrete time and voltage level sampling

T.V Tabachnikova,A.V Yumalin,L.V Shvetskova,A Fedyukhin,S Dixit

doi:10.1051/e3sconf/202022001056

T.V Tabachnikova, A.V Yumalin + Show 3 more

Open Access

https://doi.org/10.1051/e3sconf/202022001056

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Abstract

The introduction of “smart grids” technologies poses the problems of multi-criteria determination of the optimum voltage in the main substation of the object under study. In this study the busbar sections of the field substation of the oil and gas company is considered as the main substation. This paper studies regulation of voltage level in an electrical network using on-load tap changer (OLTC) of a power transformer for field substation of an oil and gas enterprise. Considered are approaches for voltage regulation taking into account the development of smart grid technologies. The authors have developed a universal method for determining the optimal voltage level on the busbar sections of a field substation, which allows for selection of the optimum voltage in accordance with certain parameters: loss of active, reactive power, voltage, electricity consumption, specific consumption or efficiency factor of artificial oil lift. The actual daily graphs of consumption of active, reactive power and voltage level at one of the field substations of PJSC Tatneft were studied. The operation mode of on-load tap-changer drive of the field transformer was modeled, taking into account the calculated optimal values of voltage and the dead zone. The paper presents the results of study of automatic voltage regulation on busbar sections of a field substation, taking into account the constraints for tap changer switches of a power transformer.

Highlights

The expansion of area of fields being developed is characterized by an increase in electricity consumption
The aim of this work is to analyze the number of switches of on-load tap changer (OLTC) of a field substation power transformer taking into account time
The authors used a technique for determining the optimal voltage level in the main substation, i.e. on busbar sections of a field substation, taking into account the operation parameters of the field equipment as a function of voltage

Summary

Introduction

The expansion of area of fields being developed is characterized by an increase in electricity consumption. It causes a need for the development of power supply system, so the issues of economical use of electricity are becoming especially relevant. Smart Grid technologies are actively developing around the world. Smart Grid predetermines the global automation and informatization of electric power systems in order to fulfill reliable grid modes. Smart Grid technologies are being actively implemented at oil and gas production enterprises, optimization of voltage modes, taking into account the adoption of new control algorithms, remain relevant today [4,5]

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