Simulation and Analysis of Reactive Power Consumption of the Coal Mine Excavation Area

The growth of the power-to-weight ratio of coal mine equipment has resulted in the need for increasing energy efficiency. One of the most effective ways to fulfill this need is selecting and installing reactive power compensation devices (RPCDs). However, the existing methodologies cannot ensure the correctness of choosing RPCDs for coal mines because they don't take into account the harsh nature of reactive power consumption in coal mines. To solve this problem, it is necessary to model and analyze the reactive power consumption of the coal mine extraction area. This article discusses the main approaches to the development of a simulation model of a power supply system of a coal mine extraction area. The scenario approach has been used to model the operating modes of mining equipment. Based on the created model, the modeling of the main operating modes of mining equipment has been carried out. As a result, it made it possible to obtain active and reactive power consumption curves to select the optimal configuration of RPCDs. In conclusion, recommendations are given for installing regulated and unregulated RPCD in the power supply system of coal mines.