Analysis On Effects Of Power Consumption Orderly Of Users On Fired-coal Need

With our country's rapid and sustained economic growth, the electric load has also been increasing speedily and the difference between electric power peak and valley has been large increasingly. Coal accounts for four fifth in our country's energy struction,Moreover, the contradiction between planning power and marketing coal results in a series of problems, which bring greater pressure to power grid construction and operation. How to make overall plans and ensure the national policies of energy conservation and energy-efficient dispatching being carried out smoothly, and how to make sure the power grid stability and safety and ease the tension situation of coal-supply have become important issues of the city power company.Facing the structural and periodic power shortage, we should only carry out power consumption orderly to decrease the difference between electric power peak and valley, carry out energy-saving dispatch to balance the relations among the electric generation, transmission, distribution and consumption in power system and arrange reasonably the generator's order, especially the coal-fired units mediation orderly to reduce electricity coal demand. The paper starts from the user load curve analysis, then draws the conclusion that the difference between electric power peak and valley has been large increasingly recently resulting in great pressure to power system operation, hindering energy-saving dispatch and bringing high rate of coal consumption. And then launch power consumption orderly to flatten peak of power and change load curve so as to carry out energy-saving dispatch in special session. Furthermore, the paper analyzes specifically the sort and order of generator units and coal-fired units, discusses the fired-coal units'conditions and decision-making process through calculating units'coal-saving benefits in the circumstances of mediation orderly meeting follow-up loading rate, calculates the "benefits of large substitute for small" and "benefits of loading rate increasing" respectively, and calculates the specific coal-saving values of different mediation oredrly units.Finally, the paper analyzed practically the effects which power consumption orderly have on fired-coal need in Luoyang Power Company, the results validated the theory reasonable and scientific.