Abstract
Ventilation systems are one of the most important and energy-consuming systems in the manufacturing process of modern mining enterprises. Variable-frequency asynchronous and synchronous electric drives with frequency converters based on self-commutated inverters or variable-frequency synchronous electric drives based on the LCI scheme are considered as advanced drives for ventilation units. When upgrading electric centrifugal fans with slip-ring asynchronous motors and unexhausted performance potential, it is effective to apply a wound-rotor slip-recovery system. A converter with natural commutation with an intermediate dc link is used in the LCI scheme. Robicon frequency converters are used for variable-frequency high-voltage electric motors. An important advantage of these converters is that they can be used for standard 6- and 10-kV motors.
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Abramov, B.I., Datskovskii, L.Kh., Kuz’min, I.K., Pridatkov, A.G., and Limorenko, P.M., Motor soft starters in electric drives used in mining machinery, Russ. Electr. Eng., 2014, vol. 85, no. 1, p. 18.
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Original Russian Text © B.I. Abramov, L.Kh. Datskovskii, I.K. Kuz’min, Yu.V. Shevyrev, 2017, published in Elektrotekhnika, 2017, No. 3, pp. 67–73.
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Abramov, B.I., Datskovskii, L.K., Kuz’min, I.K. et al. Electric drives of mining installations. Russ. Electr. Engin. 88, 159–165 (2017). https://doi.org/10.3103/S1068371217030026
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DOI: https://doi.org/10.3103/S1068371217030026