Analysis of control quality of rotary mechanism drives in upright oxygen converters by simulation modeling

Electric drives of machines and equipment take a key part in implementation of process flows, and their control integrates various engineering solutions connected with production automation in mining and metallurgy. This makes modeling of operating modes of machinery drives a topical task. It is proposed to analyze the quality of control of the rotary mechanism drive in upright oxygen converter KVK-30C with an induction motor drive using the simulation modeling techniques. The source data were specifications of a real-life upright converter operated at the metallurgy workshop at Kola Mining and Metallurgy. Models were tested under maximal load with regard to both weight of the converter and weight of the molten metal. The molten metal weight is 6.88% of the total weight of the rotary structure, and tapping is carried out gradually. The ladle filling during tapping of crude copper totals less than 3%, no great drop happens in loading, and variation in loading during operation is inexpedient to analyze therefore. Modeling shows that the drive operates stably in all modes. The main figures of the control quality are: the time of transient and normal rating attainmen tstart = 0,64 s; the starter and steady-state currents and moments are within the ranges of the induction motor drive rating; the time of the full stop of the converter at all sustained speeds ranges as 0.7–0.8 s. In braking mode, positional precision is 1.17%, which conforms with the process requirements.

Keywords: mining and metallurgical industry, converter, ladle, drive, load, transient, control quality, simulation modeling, regulator.
For citation:

Petrov V. L., Kuznetsov N. M., Morozov I. N. Analysis of control quality of rotary mechanism drives in upright oxygen converters by simulation modeling. MIAB. Mining Inf. Anal. Bull. 2024;(1):169-179. [In Russ]. DOI: 10.25018/0236_1493_2024_1_0_169.

Issue number: 1
Year: 2024
Page number: 169-179
ISBN: 0236-1493
UDK: 621.3.077.2
DOI: 10.25018/0236_1493_2024_1_0_169
Article receipt date: 17.08.2023
Date of review receipt: 30.10.2023
Date of the editorial board′s decision on the article′s publishing: 10.12.2023
About authors:

V.L. Petrov, Dr. Sci. (Eng.), Professor, National University of Science and Technology «MISiS», 119049, Moscow, Russia, e-mail:,
N.M. Kuznetsov, Cand. Sci. (Eng.), Leading Researcher, Northern Energetics Research Centre Kola Science Centre of Russian Academy of Sciences, 184209, Apatity, Russia, e-mail:,
I.N. Morozov, Cand. Sci. (Eng.), Assistant Professor, Murmansk Arctic State University, 183038, Murmansk, Russia, e-mail:


For contacts:

V.L. Petrov, e-mail:


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