Behaviour of electric drive of roller-bit drilling rig swivel head with fuzzy control
https://doi.org/10.17073/2500-0632-2022-1-78-88
Abstract
The efficient consumption of electric power in mining is an important task in power consumption optimization. The use of high-performance drilling rigs requires special attention to the development of energy-saving electric drive for open-cut mining operations. The increase of the efficiency factor and energy performance of a drilling rig is achieved through controlling the electric drive which allows the specific resonance frequency and limiting the current and velocity amplitudes to be regulated. The main idea of the study lies in the application of fuzzy controllers in the systems of automatic control of processes and equipment modes in mining production. The use of fuzzy controllers is aimed at improving the characteristics of PI and PID controllers. The calculations and simulation of transients based on simulation models in the MatLab 7.11 Simulink software package allowed reliable analysis of modes of a swivel head electric drive operation to be carried out. In the course of simulating the transients of swivel head velocity varying with the use of a fuzzy controller, fuzzy variables including mismatch of rotation velocity, mismatch change speed, velocity setting voltage were justified. The analysis allowed for the term-sets of fuzzy variables and the membership functions for each term-set of fuzzy variable to be defined. The simulation results showed that the control time (response) of transients of the swivel head motor torque and current change when using the swivel head velocity control by a fuzzy controller with increasing load depending on the rock hardness decreased by a factor of 2. Implementation of a system of automatic control of swivel head velocity with the application of a fuzzy controller allows drilling rig vibration to be reduced and provided effective protection of the swivel head electric (motor) drive from overload, thus increasing reliability of the equipment, and increasing drilling productivity.
About the Authors
N. M. Kuznetsov
Kola Scientific Center of the Russian Academy of Sciences
Russian Federation
Russian Federation
Nikolai M. Kuznetsov – Cand. Sci. (Eng.), Leading Researcher
Scopus ID 56252352900, ResearcherID G-3754-2017
Apatity
I. N. Morozov
Murmansk Arctic State University
Russian Federation
Russian Federation
Ivan N. Morozov – Cand. Sci. (Eng.), Associate Professor
Scopus ID 57210912468, ResearcherID W-4918-2018
Murmansk
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Review
For citations:
Kuznetsov N.M., Morozov I.N. Behaviour of electric drive of roller-bit drilling rig swivel head with fuzzy control. Mining Science and Technology (Russia). 2022;7(1):78-88. https://doi.org/10.17073/2500-0632-2022-1-78-88
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