Influence of Various Forms Voltage of the Pow-er Converter in the Complex of Fans of the Main Air Handling
Main Article Content
Abstract
Mining enterprises are examples of energy-intensive enterprises. At the same time, in the total volume of electric energy consumption, they consume about 80% such as: a crushing and sorting factory, a main drainage system, skip hoisting installations and main ventilation installations. In particular, ventilation plants consume approximately 30% of the total electricity consumption, this fact is due to the fact that according to the technology of underground mining, the iron ore mines are aired around the clock, and the electrical capacities of these plants reach 2 MW.
Electromechanical complexes of fan installations, in turn, are equipped with synchronous drive electric motors. In order to regulate the performance of the main ventilation unit, inefficient measures are used: turning fan blades, and opening and turning working flaps. Meanwhile, with an increase in the depth of production of iron ore below 1500 m, the effectiveness of the existing ventilation process of underground workings is complicated, and these measures become even more ineffective.
The process of the necessary improvement of ventilation systems in iron ore mines and the development of appropriate energy efficient systems to control the rotational speed of the synchronous drive motor of the main ventilation unit must be carried out in a plane of reach to reduce the electrical energy consumption of these units, in turn, will lead to the desired reduction of electrical energy consumption by iron ore mines at all. One of the real directions to achieve this goal is the creation of high-voltage converters, which will increase the energy efficiency of the electric drive of the main fan systems as a whole. In this study, based on the analysis, the possibility of using a power converter based on a multi-level cascade voltage inverter is considered. The proposed method of controlling and shaping the high-voltage supply voltage of the converter will increase the efficiency of the electromechanical system as a whole, as well as reduce the weight and volume of transistor modules and filter components, in the final form will achieve the desired level of performance of electromechanical complexes and all main fan systems as a whole.
The prospect of introducing a controlled electric drive for main ventilation installations in underground mining enterprises is a priori economically viable measure that will significantly reduce power consumption by main ventilation systems, facilitate the start-up of synchronous motors and reduce starting currents. In addition, an adjustable electric drive increases the static efficiency and the range of technological use of the main ventilation systems, and, thereby, further reduces power consumption. Meanwhile, to achieve the desired level of electrical energy efficiency of electrical systems, as the entire complex of the main ventilation systems, it is necessary to develop sufficiently efficient circuits of voltage converters.
Ref. 12, fig. 5, tabl. 2
Article Details

This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
References
O. M. Sinchuk, I. I. Peresunko, and D. A. Mykhailychenko, “Using the direct frequency converter for the startup of powerful synchronous electric motors.,” Sci. Tech. J. "Microsystems, Electron. Acoust., vol. 104, pp. 38–42, 2018, DOI: 10.20535/2523-4455.2018.23.5.132728.
O. Sinchuk, I. Sinchuk, I. Peresunko, and V. Stepanenko, “Formation of an integrated energy efficiency indicator for mining enterprises,” Min. Miner. Depos., vol. 11, no. 4, pp. 71–78, 2017, DOI: 10.15407/mining11.04.071.
O. M. Sinchuk, S. M. Boiko, F. I. Karamanyts, I. A. Kozakevych, M. L. Baranovska, and A. M. Yalova, Aspects of the problem of applying distributed energy in iron ore enterprists electricity supple systems. Warsaw: iScience Sp. z.o.o., 2018.
A. V. Prakhovnik, V. P. Rosen, and V. V. Degtyarev, Energy saving modes of power supply of mining enterprises. M.: Nedra, 1986.
A. M. Weinger, Adjustable synchronous electric drive. M.: Energoatomizdat, 1985.
O. N. Sinchuk, V. Y. Zakharov, and D. A. Mykhailychenko, “Simulation of the startup of an implicit pole synchronous electric motor,” Electrotech. Comput. Syst. Sci. Tech. J., vol. 84, pp. 24–30, 2012, URL: http://www.irbis-nbuv.gov.ua/cgi-bin/irbis_nbuv/cgiirbis_64.exe?Z21ID=&I21DBN=UJRN&P21DBN=UJRN&S21STN=1&S21REF=10&S21FMT=njuu_all&C21COM=S&S21CNR=20&S21P01=0&S21P02=0&S21COLORTERMS=0&S21P03=I=&S21STR=Ж29197/2012/8.
R. T. Schreiner, Mathematical modeling of AC drives with semiconductor frequency converters. Ekaterinburg: URO RAS, 2000, ISBN: 5-7691-1111-9.
B. Wu, High-Power Converter and AC Drives. IEEE Press, 2006, ISBN: 978-0-471-73171-9.
I. O. Sinchuk et al., Brief commentaries on the problem of power consumption management at iron ore underground mines. Warsaw: iSience Sp. z.o.o., 2019.
Steven W. Blume, Electric Power System Basics for the Nonelectrical Professional, 2nd Edition. Wiley-IEEE Press, 2016, ISBN: 978-1-119-18019-7.
L. Tihanyi, EMC in Power Electronics. N.Y.: IEEE Press, 1995, ISBN: 9780080572505.
Cherny A.P., A. I. Gladar, Y. G. Osadchuk, I. R. Kurbanov, and A.N.Oshun, Starting systems of unregulated electric drives, Scherbatyk. Kremenchug: Scherbatykh AV, 2006.