Zayika V. Methods of raising the effectiveness of power supply and energy use in underground mining machines and installations of collieries

TThe problem of development of scientific and methodological bases of power supply and energy savings for colliery energy complex is solved in the thesis.As the result, principles of power supply system decomposition on a level of electric loads generalization are justified; new properties and character relation between technical and economic indexes of mine heterogeneous electric networks and accuracy of electric loads definition are revealed; relation between energetic and technological parameters of mining machines alongside with potential for energy savings on industrial sites and boundaries of adjusting ability installations are determined; new approaches to energy monitoring of mining equipment on underground operations are justified. The research allowed to improve the existing methods of electric loads calculation and power consumption management, to develop models and means of energy monitoring on a new technological level.