Study On Power System Management Planning Model Based On Total Emission Control Of SO₂, NO_x And CO₂

During the period of the Eleventh Five-Year, SO2 emissions have been controlled effectively, and the environmental degradation can be alleviated to some extent. The government continues to implement stringent air pollution control policies, and adds NOx to the pollutant emission control system during the period of the Twelfth Five-Year, with the goal of reducing 10% NOx emissions compared with the year 2010. Meanwhile, the goverment announced actions to control greenhouse gas emissions targets in 2009, planning to reduce 40%-45% CO2 emissions per unit of GDP by 2020 from the 2010 level.In order to consolidate the achievement of SO2 emissions reduction, ensure the realization of NOx and CO2 control, the Chinese goverment has issued a series of programs and policies on energy conservation, emissions reduction and pollution prevention in these years. Environmental Protection "Twelfth Five Year Plan" requires the implementation of a variety of atmospheric pollutant control, improving environmental economic policies, promoting the power industry pollution reduction. In addition, in the report of Action Plan of atmospheric pollution prevention, the goal of the total coal consumption control in the long term is clearly raised that the coal consumption as a proportion of energy consumption will be reduced to below 65% by the year 2017. Specially, the latest Environmental Protection Law merges the responsibilities of environmental pollution and ecological damage, establishes the principle of damager bearing responsibility.The power industry, as the main field of SO2, NOx and CO2 emissions, is facing more severe challenges of energy conservation and emissions reduction due to ’environmental protection and marketing’gradually replace’fuel and price’, which have become the main factors affecting the development of the power industry. Furthermore, the power system management work has been put forward new requirements.This article analyzes the economic impact of the mandatory and the economic incentive environmental policies in the development of the power industry. The power generation of the power enterprises, especially coal-fired power plants, is constrained by environmental factors such as limit of atmospheric pollutant and CO2 emissions etc, because of the further implementation of the mandatory environmental policy. While the situation that the economic incentive environmental policies is further improved changes the opposite relationship between economic benefits of electric power enterprises and the environmental investment. Sustainability of the power enterprises is more and more closely connected with environmental protection.First of all, total emission control measures of NOx are summarized, economic incentives for denitration renovation on coal-fired power units are resolved, and the cost accounting method of SCR denitration is studied. Then, this article builds a denitrification programming model for the regional coal-fired power units using 0-1 integer nonlinear programming method, which can plan the operation step and time to install SCR denitrification facilities that is proper for the regional coal-fired power units, and also can redistribute balance index of NOx emission reduction.The second, according to the environmental characteristics of the Twelfth Five-Year, taking SO2 emissions control as example, the appropriate compensation for the use of emission rights and trade policy scenarios are set, then a desulfurization programming model for the regional coal-fired power units is established, using 0-1 integer stochastic programming method, which can plan the operation time of desulfurization facilities.This article also regards the great pressure of CO2 emissions faced by our country in the short term as the breakthrough point to analyze the importance of developing low-carbon power for the power industry. An objective function which can maximize CO2 emission reduction of power system in the planning time is established, taking full consideration of potential and capital constraints about CO2 energy conservation, CO2 reduction project and CO2 structure adjustment of the regional power industry. This article builds a programming model for CO2 emission reduction of the regional power industry, and applies the model to power system of Heilongjiang Province. The results show that the model can provide a certain reference for planning objectives and making policy on CO2 energy conservation, CO2 reduction project and CO2 structure adjustment of power industry in each period.At last, on the basis of paying for the use and trading of SO2, NOx and CO2 emission rights, paid pathway of getting index is analyzed. Meanwhile, this article comprehensively analyzes the influence of uncertainty of power demand while power industry making plans for power generation, emission reduction and expansion. Based on the linkage relationship among power system demand, power generation, emission reduction and expansion, an objective function which will minimize power cost is established. Taking consideration of power generation is higher or lower than the actual demand; the article uses the method of Two-stage stochastic to build a model of emission reduction for regional power system and a programming model of power expansion, and applies the model to the power system of Heilongjiang Province. The results show that the model can provide decision support of making plans of power generation, atmospheric resource supply and expansion.The above studies in this artile can meet the urgent requirements of the power system management planning.