Determination of estimated electrical loads of charging infrastructure for electric vehicles integrated into electrical installations of residential and public buildings

RELEVANCE. The research aims to improve the regulatory framework governing the procedure for determining the estimated load of public buildings when integrating charging infrastructure for electric vehicles into the electrical installations of these buildings. THE PURPOSE. Determination of the schedule of electricity consumption, the coefficient of simultaneity and non-coincidence of maximums of the charging infrastructure for electric vehicles, with subsequent development of proposals for updating SP 256.1325800.2016 "Electrical installations of residential and public buildings. Design and installation rules" in terms of the methodology for determining the estimated load of public buildings when integrating charging infrastructure for electric vehicles into the electrical installations of the said buildings. METHODS. In achieving this goal, experimental, mathematical and statistical methods were used. RESULTS. A methodology for determining the coefficients of simultaneity and non-coincidence of maximums of electric vehicle charging stations has been developed, and their numerical values have been obtained depending on the type, power, and combination of simultaneously operating charging station connectors. Proposals have been developed for amending SP 256.1325800.2016 "Electrical installations of residential and public buildings. Design and installation rules" in terms of the methodology for determining the estimated electrical loads of the charging infrastructure for electric vehicles integrated into electrical installations of public buildings. CONCLUSION. The development of a methodology for calculating electrical loads simultaneously with the development of demand factors, simultaneity and the coefficient of mismatch of maximums of charging infrastructure for electric vehicles integrated into public buildings will contribute to the optimization of costs for technological connection to electrical networks.

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