Optimization Method And Application Research On Trans-Regional Coal Transportation Plan Of Power Enterprise

Based on the analysis of China’s energy structure and coal resources distribution, coal transportation becomes one of the most important determinants on healthy development of national economy, steady production behavior of enterprises and improvement of social stability. However, in order to accomplish coal transportation annual supply task, the special pattern of transportation (such as "western coal shipping to the east" and "northern coal shipping to the south") has to be overcome. To solve such problem, under the social context of coal’s deficiency supply chain which causes an increasing gap between suppliers and demanders (e.g. electric power corporations), how to increase the efficiency of coal transportation is becoming crucial. Take the electric energy industry as an example. In the field of electric energy, the corporations have to effectively utilize their resources to reduce the cost. Further, they could also reduce the cost by planning an operational transportation scheme, which can rationally increase the transportation capacity and also establish a scientific coal allocation. This is a systematic and complex project.The purpose of this paper is to research on such questions. Based on the traffic and transportation planning theory, by analyzing the coal logistics system of electric energy industry and the new resource of energy, combined the method of quantitative analysis the data of past years, the author expect to forecast the total amount of coal transportation plan of the next year (2013). Furthermore, Based on analyzing the result, give several advices on the plan making. Specific research content are as follows:First of all, this paper analyzes the current internal contradictions and the future trends of supply-demand of coal which the electric energy industry encountered. By analyzing the performance of each transportation mode, point out the current problems existed in the china’s coal transportation system.Secondly, using the theory of graph algorithm, combined with collection and distribution system, model the electric energy coal transportation system. First create the model with condition which minimizes the transportation fee, and then create the model with condition which maximizes the coal inventory. Finally, create the electric energy industry coal transportation optimal planning model. Finally, based on the data of HD Corporation, considering its target and diversification of resources, forecast the key indices such as coal output, future demand of corporation, coal consumption of power plant in each region, the volume of trans-regional coal allocation and transportation plan etc. Analyzing and estimating each channel of new logistics system, handling capacity of coastal ports and operation cost, etc., to provide sufficient data to support quantitative calculation. Last but not least, together with practical problems occurred in combined coal transportation by sea and rail and inter-region allocation of HD Corporation, the paper establishes a bi-level programming model of coal inter-district allocation and transportation, and applies particle swarm optimization to solve it. Meanwhile, it utilizes Matlab to carry out model’s program calculation, in order to obtain optimal transportation scheme in future and analyze its results.