APPLICATION OF MATLAB-SIMULINK TO BUILD SIMULATION MODEL OF LOW VOLTAGE NETWORK OF UNDEGROUND MINE

Abstract

According to Resolution No. 55-NQ/TW dated February 11, 2020 of the Politburo on the orientation of Vietnam's National Energy Development Strategy, the issue of using energy economically, efficiently and protecting the environment must be considered an important national policy. For heavy industries such as mining, the loads of the low-voltage network have large capacity, the length of the network often changes during the exploitation process, so to ensure the load works stably and safely, it is necessary to encourage investment in using energy-saving technologies and equipment. In the process of expanding the scale of exploitation, along with the improvement of productivity, the length of the longwall increases, the capacity of the load increases, causing a series of network parameters to change, affecting the supply capacity of the power grid. In order to calculate and visually evaluate the underground mine low voltage network when the network parameters change, the article applies Matlab-Simulink to build a simulation model of the underground mine low voltage network. The results of this simulation model can flexibly evaluate the current status of the underground mine low voltage network with different configurations. Based on the calculation results, reasonable operating solutions can be proposed for the mine low voltage network in terms of management, economics and technology.