Rotation drive system for ball mills using the DFC-SM (Direct Frequency Converter - Synchronous Motor) configuration
Abstract
In certain cases involving the mechanisation of maintenance and auxiliary operations related to ball mills, direct frequency converters with a limited output frequency range are employed. These operate in short-term duty modes that do not require optimal converter output voltage waveform or high precision in maintaining thyristor firing angles. On the other hand, such devices typically must meet enhanced requirements regarding noise immunity and reliability, as they are installed in industrial premises with high levels of electromagnetic interference. ...
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References
- Dech G. Guide to practical application of Laplace and Z-transformations. M., Nauka, 1971.
- Pavlov Yu.P., Sleptsova Z.B. Investigation of spectral composition of voltage in frequency converters for ball mill step rotation drives. - RZh. Consolidated volume "Electrical Engineering and Power Engineering", 1975, No. 9, ref. 9K 134-75.
- Device for rotating ball mill drum. - Author's certificate No. 498959. Patents Bull., 1976, No. 2. Auth.: Z.B. Sleptsova, I.M. Stolyarov, K.A. Ananev, A.V. Smirnov.
- Kharkevich A.A. Spectra and analysis. M., Gostekhizdat, 1952.
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