APPLICATION OF INDIVIDUAL GRAPHS OF HIGHER HARMONICS IN PROBLEMS OF ELECTROMAGNETIC COMPATIBILITY AND ENERGY EFFICIENCY OF MINING ENTERPRISES
Keywords:
quality of voltage, electrical supply system, electrical equipment reliability, graphics of higher harmonic, loss of electric energy.Abstract
The article first proposes to use individual graphs of higher harmonics that are generated by energy converters (rectifiers, frequency converters) to assess the “individual trace” interference in the power supply system of a mining enterprise. As a result of modeling and practical experiment, the scientific basis for the calculation of these indicators was developed, which will be taken into account when calculating the additional losses at non-sinusoidal voltage to ensure the energy efficiency of enterprises. Analyzed typical circuit solutions for power supply systems of coal mines with powerful non-linear loads, taking into account the typical requirements for the reliability and quality of power supply for consumers in underground coal mining. The parameters of the standard and equivalent replacement schemes of mining enterprises were calculated, on the basis of which modeling was performed and the interrelationships of the indicators of reliability and quality of power supply were obtained under a decentralized power supply system.
References
Півняк Г.Г. Енергетична ефективність систем електропостачання [монографія] / Г.Г. Півняк, І.В. Жежеленко, Ю.А. Папаїка ─ Д.: Національний технічний університет «Дніпровська політехніка», 2018. ─ 149 с.
Pivnyak G. Normalization of voltage quality as the way to ensure energy saving in power supply systems / G. Pivnyak, I. Zhezhelenko, Yu. Papaika // “Energy Efficiensy improvement of geotechnical systems”, Taylor&Francis Group (A Balkema Book). – 2013. – Р. 11-18.
Papaika Yu. Power Quality and Resonances in Power Supply Systems with non-sinusoidal Loads / Yu. Papaika, G. Kosobudzki, A.Lysenko // Advanced engineering forum, Trans Tech Publication, Switzerland, 2017, pp. 143-150.
Пивняк Г.Г. Расчеты показателей электромагнитной совместимости: учеб. Пособие / Пивняк Г.Г., Жежеленко И.В., Папаика Ю.А.; М-во образования и науки Украины, Нац. горн. ун-т. – Д.: НГУ, 2014. – 113 с.
Пивняк Г.Г., Жежеленко И.В., Папаика Ю.А., Лысенко О.И. Интергармоники в системах электроснабжения – Научный словарь НГУ, 2017 – №6.
Pivnyak G. G. Estimating economic equivalent of reactive power in the systems of enterprise electric power supply / G. G. Pivnyak, I. V. Zhezhelenko, Yu. А. Papaika // Науковий вісник НГУ. - 2016. - № 5. - С. 62 - 66.
Pivnyak G.G. Transients in Electric Power Supply Systems: textbook for students of higher educational institutions / G.G. Pivnyak, I.V. Zhezhelenko, Y.A. Papaika; under the editorship of Academician of National Academy of Sciences of Ukraine Professor G.G. Pivnyak. – Switzerland: TTP. – 2016 – 382 p.p.
Жежеленко И.В. Оценочные методы определения экономического эквивалента реактивной мощности / И.В. Же- желенко, Ю.А. Папаика, А.Г. Лысенко // Гірнича електромеханіка та автоматика: наук.-техн. зб. – 2017. – Вип. 98. – С. 3-6.
Электромагнитная совместимость потребителей: моногр / И.В. Жежеленко, А.К. Шидловский, Г.Г. Пивняк, Ю.С. Саенко, Н.А. Нойбергер. – М.: Машиностроение, 2012. – 351 с.
G. Pivnyak, M. Rogoza, Yu. Papaika А. Lysenko. Traction and energy characteristics of no-contact electric mining locomotives with AC current thyristor converters. - CRC Press/Balcema – Tailor & Francis Group: Power Engineering, Control and Information Technologies in Geotechnical Systems. - Leiden, The Netherlands, 2015 annual publication. – p. 1-6.
