The invention discloses a total power generation
cost optimization accounting method, and relates to the technical field of
power grid planning. In order to solve the deviation problem of power generation
cost calculation, the method specifically comprises the following steps: collecting power generation fuel quantity of a generator set in a power
plant in real time; obtaining the
power consumption at each moment before the day; determining whether the
power consumption at each moment before the day exceeds a threshold value or not; according to the collected power generation fuel quantity andthe heat value corresponding to the power generation fuel quantity, the current power generation quantity of the power
plant is calculated; and determining a day-ahead power generation plan accordingto a predetermined power generation condition and the
power consumption at each moment. Compared with the mode of calculating the power generation cost through the total power generation plan and theaverage power generation cost, the calculation deviation of the power generation cost is reduced; the method can achieve the reasonable overall planning of the in-furnace fuel quantity, the reasonable distribution of the steam quantity and
electric heating load of the generator set, and the precise scheduling, enables a power
plant to always operate at an optimal economic point, and achieves theenergy-saving purpose of the power plant.