Abstract
In the proposed paper, an improved technique for forming speed and load diagrams and selecting the power of the traction electric motor of a mining dump truck has been developed. A distinctive feature of the proposed method for calculating the power of an electric motor for a problem-oriented traction electric drive, particularly, a mining dump truck, is the formation of load and speed diagrams dividing the path into characteristic sections, each of which can combine various factors such as turning radius, angle of lateral inclination and road elevation angle, friction coefficient, etc. This makes it possible to more accurately simulate real-world operating conditions taking into account the variability of the roadway. The proposed methodology includes mathematical models and algorithms for calculating the power, torque and rated speed of a traction electric motor necessary to ensure efficient operation of a dump truck in a quarry. Special attention is paid to taking into account specific operating conditions, such as height differences, significant changes in the quality of the road surface in different sections, the characteristics of resistance forces to vehicle movement on road curved sections, the degree of vehicle congestion, etc. The improved technique makes it possible to more accurately calculate the power, torque, and rated speed of a traction electric motor, which helps optimize energy consumption and increase equipment life. The results of the study can be recommended both to designers of traction electric motors for mining dump trucks and to the organizations operating them. The application of the proposed improved methodology for forming speed and load diagrams and selecting the power of the traction electric motor of a mining dump truck will reduce operating costs and minimize environmental impacts through more efficient electricity use.
Keywords
traction electric motor, calculation method, simulation and mathematical models, speed and load diagrams, power, torque
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