Research On The Power Structure Optimization In Inner Mongolia Based On Constraint Of Energy Conservation And Emissions Reduction

Power structure refers to power generation capacity (generation) accounted for theproportion of total installed capacity (generation) in a country or a region. Powerstructure optimization is to search for one of the most economic power structure, basedon power in an area in a certain period and the result of load forecasting, under thecondition of satisfy certain reliability level, meeting user demand for electricity, thepower system stability and economic operation requirements. It is a single objectiveplanning based on the economic costs as the center. However, the power structureoptimization based on energy conservation and emissions reduction constraint is differentfrom the traditional power structure optimization, it retain the traditional objectivefunction of economic cost minimization, adding the minimum energy consumption andpollutant emissions for objective function as a first priority, to make power structuremore reasonable when meeting the electricity demand conditions, the level of reliabilityand power generation system stable in planning year.For a long time, influenced by the region’s energy structure, the power structure ofInner Mongolia is formed mainly coal-fired power, hydropower, wind power, solarenergy and other new energy power generation as the auxiliary power supply pattern.Such a single structure has brought serious problems to Inner Mongolia: thenon-renewable coal was consumed by a large number, and SO2and NOXemissions ofelectricity generation increased dramatically, which is not conducive to the sustainabledevelopment of power industry and the whole area. Since the21st century, our countrybegan to vigorously promote energy conservation and emissions reduction. As a bigprovince of energy consumption and pollution, Inner Mongolia should positivelyresponse national policy of energy conservation and emissions reduction, achieving therequirements for our country. The power industry is the focus industry for energy savingin Inner Mongolia, coal power generation accounted for50%of the region’s coalconsumption, SO2emissions of electricity generation accounts for about half of theregion’s total emissions, and NOX produced70%of the whole region. Therefore, toachieve energy conservation in Inner Mongolia, power industry should take the lead, andone of the ways to achieve energy saving for electric power industry is to optimize thepower structure. Based on the above background, this paper puts forward optimize thepower structure to Inner Mongolia from the Angle of energy conservation and emissionsreduction, in order to realize the targets in Inner Mongolia.Firstly this article studies the related theories and methods about the powerstructure optimization and energy saving and emission reduction; secondly by looking ata large number of data, analyze the effect of power structure and energy conservation and emissions reduction of Inner Mongolia; thirdly, on the basis of above theory andqualitative research, establish a multi-objective decision model of power structureoptimization based on energy conservation; finally, use genetic algorithms model forempirical research: we first solve the power structure optimization model in2015underthree scenario, which separately are GDP highly growth (17%), moderate growth (15%)and slow growth (13%), comparing the results of the objective function under threescenarios and in contrast with the “twelfth five-year” plan in Inner Mongolia, and thencombined with the sustainable development of Inner Mongolia, find out the optimalscenario; finally solve the power structure optimization results in2015and2020underthe optimal scenario of Inner Mongolia, and analyze the power structure change tendency.The empirical results show that: under the condition of keeping GDP medium speed andachieving energy conservation and emissions reduction targets, power structure of InnerMongolia which is given priority to thermal power will gradually improve in mediumand long term, transforming to the diversification of energy structure of wind power,solar energy and other new energy as an alternative power generation.