Gas power plant power generation cost calculation method based on production data mining

Abstract

The invention discloses a gas power plant power generation cost calculation method based on production data mining. The method comprises: acquiring a power plant fixed cost value, total environmentalprotection cost and total desalted water cost in production, natural gas unit price and power plant SIS point table data of a time period corresponding to calculation data used by power supply cost; respectively establishing power supply and power consumption models according to different working conditions of the unit, and substituting power plant SIS point table data into the power supply and power consumption models to calculate power supply and power consumption values; establishing a fuel cost calculation model, and substituting the natural gas unit price and the power supply and gas consumption value into the fuel cost calculation model to calculate a fuel cost value; summing the fuel cost value, the total environmental protection cost in the production process and the total desaltedwater cost to obtain a variable cost value; adding and summing the change cost value and the power plant fixed cost value to obtain a total cost value, calculating the total cost value through a least square method to obtain a total power supply cost curve of different temperature clusters, and deriving the total power supply cost curve to obtain a marginal cost curve.

Description

technical field [0001] The invention relates to the technical field of cost measurement and calculation, in particular to a gas-fired power plant generation cost measurement method based on production data mining. Background technique [0002] Each power plant provides energy for the society through its power generation capacity. At present, my country's power generation energy is partly generated through gas. Therefore, the amount of daily combustion of gas-fired power plants for power generation is very large. In China, the calculation method of power generation cost for gas-fired power plants is only to calculate the total price of power generation cost by calculating the expenditure data by way of bookkeeping, but some of the expenditure accounts may be used for operations or other aspects, or there are partial expenditure accounts Offset through material exchange and cannot be recorded, resulting in non-negligible errors in the current calculation data of domestic gas p...

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Problems solved by technology

[0003] The invention provides a gas-fired power plant power generation cost calculation method based on production data mining. The fuel cost value is obtained by calculating the unit price of natural gas and the SIS point table data of the power plant, and then combined with the total cost of environmental protection and the total cost of desalted water in the production process to calculate the change. Finally, the total power supply cost is calculated by combining the fixed cost value of the power plant, so as to solve the technical problem that the method for calculating the total power supply cost of the gas-fired power plant in the prior art has a single structure and cannot accurately calculate the power generation cost, so as to fully and accurately calculate the power supply cost and realize Eliminate cost data calculation errors

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