Peculiarities of estimation of total energy losses in electric networks and estimation of nature of electricity consumption in local power supply systems (LES) are given. The structure of additional electricity losses in LES in the presence of higher harmonics of current and voltage is carried out, the generalized schedule of instantaneous functions of current i(t), voltage u(t), and power p(t) on components. The offered indicators of an estimation of the performance of criterion of a minimum of losses of the electric power in LES allow to estimate levels of distortion of power processes at consideration both exchange processes, and at the analysis of additional losses of the electric power. The accuracy of measuring the integrated characteristics of energy exchange depending on the available levels of distortion of voltage and current signals is considered. It is shown that in order to take into account the influence of higher harmonics on the total power consumption, it is necessary to determine the change of Frize QFpower as an indicator of additional electricity losses in the presence of non-sinusoidal currents and voltages in at different ratios between the value of current and voltage of the first and higher harmonics. The evaluation of the efficiency of power consumption regulation using the Frize QF power at an arbitrary time interval, as well as the corresponding current distribution into active and reactive components are considered. The peculiarities of increasing the efficiency of power consumption regulation in LES at the cyclic change of generator parameters and load are analysed.


Shlarskiy Ya., Pirog S. Influence of the load graph on the consumption in the electrical network of the enterprise // Electromechanics and mechanical engineering. – 2016. – № 6. – P. 858–863.

Figueiredo V., Rodrigues F., Vale Z., Gouveia J.B. An electric energy consumer characterization framework based on data mining techniques // IEEE Transactions on Power Systems. – 2005. – № 2. Vol. 20. – P. 596–602.

Greening L.A. Demand response resources: Who is responsible for implementation in a deregulated market? // Energy. – 2010. – № 4. Vol. 35. – P. 1518–1525.

Torriti J., Hassan M.G., Leach M. Demand response experience in Europe: Policies, programmes and implementation // Energy. – 2010. – № 4. Vol. 35. – P. 1575–1583.

Denysiuk S., Bazyuk T. Optimal power selection in power supply systems // Energy: economics, technologies, ecology. – 2013. – № 2. – P. 50–57.

Denysiuk S., Opryshko V. Analysis of possibilities of optimization of daily schedule of electric energy consumption // Bulletin of KNUTD. – 2019. – №6 (128). – P. 20–28.

Drehsler R. Change and assessment of electricity quality under asymmetric and nonlinear loading. – M.: Energoatomizdat, 1985. – 112 p.

Zhezhelenko I., Saenko Yu. Electricity quality indicators and their control at industrial enterprises. – M.: Energoatomizdat, 2000. – 252 p.

Zhuikov V., Denysiuk S. Energy processes in electric circuits with key elements. – К.: ТЕКSТ, 2010. – 264 p.

Kovalev A., Shauychov T. Aligning load curves. – https://elar.rsvpu.ru/bitstream/123456789/12895/1/eee_2013_10.pdf

Bragin A. Algorithm for the formation of graphs of electrical loads of the enterprise using storage batteries as consumers-power regulators. – Abstract of the dissertation for the degree of Cand. tech. sciences. – Specialty 09.05.03 – Electrotechnical complexes and systems. - St. Petersburg, 2013. – 20 p.

Frolov V., Korotkov A. Residential and reactive load graphs for residential consumers // ISPU Bulletin. – 2011. – Issue. 5. – P. 1–3.

Popov V. Fundamentals of circuit theory. – М.: Vushaya chkola, 1998.

Radio circuits and signals. Tasks and assignments / ed. J. Jakovlev. – M.: INFRA-M; Novosibirsk: NGTU, 2003.

Denysiuk S. Analysis and optimization of energy processes in dispersed power systems // Techn. electrodynamics. – 2016. – № 4. – P. 62–64.

Denysiuk S., Bazyuk T. Analysis of the impact of uneven electricity consumption // Eastern European Journal of Advanced Technologies. – 2013. – № 8(64). – P. 9–13.

Denysiuk S. Technological guidelines for the implementation of the Smart Grid concept in power systems // Energy: economics, technology, ecology. – 2014. – № 1. – P. 7–21.

Denysiuk S., Kravtsov V. Estimation of accuracy of measurement of components of the electric power in systems with converters of the electric power // Techn. electrodynamics. Theme. issue "Problems of modern electrical engineering". – Part 1, 2008. – P. 61 – 66.