Optimization of the Mongolia Backbone Electric Grid Development
The central electric power system of Mongolia is characterized by a disjointed structure of its generating capacities, the existence of isolated "islanded" power systems, a significant length of inter-area transmission lines, and the availability of links with the power systems of Russia and China. The article discusses the current state and prospects for the development of the Central Power System of Mongolia. The long-term development of the power system requires multi-scenario studies and optimization calculations, which require dedicated mathematical models. An optimization mathematical model of the electric network has been developed, which is based on determining the minimum discounted costs for the construction and operation of new power lines subject to conditions and constraints relating for electricity generation and consumers. By using the optimization model, the development of the power system's backbone electric grid for the period up to 2030 is analyzed. The need of the Mongolian power industry for construction of six backbone power lines that will make it possible to unite the country's isolated power systems and optimize the load flow distribution in the network is pointed out. The correctness of the obtained results is confirmed by modeling and conducting comparative calculations of the electric network in the RastrWin software package.