The relationship between consumption characteristic parameters and the unit load

ambient temperature

backpressure was analyzed.The consumption parameters include coal consumption for power generation and electric consumption of air-cooling fan in direct air-cooling units.The discrete difference method was employed to build an online acquisition model for consumption performance.The data accuracy and variability were ensured by online real time correction method.This online calculation software was applied in a 300 MW direct air-cooling unit

and the variation of coal consumption for power generation and electric consumption of air-cooling fan under different working conditions were obtained.The change trend of the consumption performance curve for this unit was complicated

and with strong nonlinearity.The consumption characteristic parameters obtained online can be used as the basic data to guide the unit optimal operation.