Research Of Optimization Of Coal Mine Supply Network Based On Optimal Series

With the increasing of coal production and the safety production requirements in coal mine, some of the original coal mine supply network can not meet the existing production requirements.The existing coal mines supply network is needed to be re-optimized and re-planned to improve the security andquality and ability of power supply to meet the production needs.The research work is carried out for the multi-series and big losses, low voltage quality and operation uneconomic problems of the coal mine power supply network.Firstly, the overall structure, the hierarchical form, as well as the characteristics of each production system of the coal mine power supply system are analyzed. And then the problems of coal mine supply network are studied. According to the shortest path problems in graph theory, the minimum series theory is promoted for excessive classification in power supply network, and then the best series are studied with the combination of shortest path and minimum series. Based on the research, the same level load is classified, according to the characteristics of production systems, and the coal mine supply network optimization solutions were proposed with the optimal combination of the best series and the production system's location. The reactive power optimization of the coal mine were studied for unqualified voltage quality and operation uneconomic of power grids and the too large power loss problems, according to reactive principles "grading compensation, local balancing".Finally a simiulation is made by taking the findings to optimize one coal mine power supply network. The simulation results show that the program has a good performance. Through the economic analysis proved that this program is feasible.