Electric drive of modern mining machines

Hoisting machines of mines are the most complex and critical objects in the overall technological chain of transportation of minerals from the deposit to the surface. In most cases, the hoist is the only link between mining operations and the surface. The main solutions for mine hoisting machines are: frequency-controlled synchronous and asynchronous electric drives. When modernizing existing DC drives, a thyristor converter-DC motor system is used. The article presents the experience of LLC “Electrotechnical Industrial Company” in the design and implementation of gearless low-speed AC and DC electric drives for mine hoisting machines manufactured by PJSC “Uralmashzavod”. A description of the projects implemented by the company’s employees is given, the specific of choosing one or another type of electric drive for mine hoisting machines is shown. A description of a gearless thyristor DC electric drive is given, which is used in the modernization hoisting machines. The quality of electricity and measures to improve it during the operation of a thyristor DC electric drive of mine hoisting machine are considered. AC electric drives of mine hoisting machines without a gearbox based on low-speed synchronous electric motors with frequency converters with direct communication, which are currently operating at the production sites of PJSC MMC Norilsk Nickel and OJSC Uralkali, are considered. A description of modern electric drives of mine hoisting machines without a gearbox based on low-speed synchronous electric machines with high-voltage frequency converters with active front end rectifiers is given. The comparison of electric drives of hoists with different types of converters is given according to the most important practical indicators.

Abramov B. I., Ivanov A. G., Shilenkov V. A., Kuzmin I. K., Shevyrev Yu. V. Electric drive of modern mining machines. MIAB. Mining Inf. Anal. Bull. 2022;(5—2):145—162. [In Russ]. DOI: 10.25018/0236_1493_2022_52_0_145.

Abramov B. I.¹, General Director, abramov@electroprom.com;
Ivanov A. G.¹, Cand. Sci. (Eng.), Deputy General Director for Business Development, andrej.ivanov@electroprom.com;
Shilenkov V. A.¹, Deputy Technical Director, shilenkov@electroprom.com;
Kuzmin I. K.¹, Cand. Sci. (Eng.), Deputy Director of the Department of Sales and Business Development in the Mining Industry, kuzminik@electroprom.com;
Shevyrev Yu. V.², Dr. Sci. (Eng.), Professor of the Department “Energy and energy efficiency of the mining industry”, https://orcid.org/0000-0003-2452-9796, uvshev@yandex.ru;
¹ Electrotechnical Industrial Company LLC (Electroprom LLC), 129626 Moscow, Prospect Mira, 106, Russia;
² National University of Science and Technology MISiS, Leninskiy prospekt, 4, Moscow, 119049, Russia.

Shevyrev Yu. V., e-mail: uvshev@yandex.ru

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