A power generation marginal fuel cost calculation method and device for a generator set

Abstract

The invention discloses a power generation marginal fuel cost calculation method for a generator set. The method comprises the steps that: acquiring the output level of the generator set and the average fuel consumption value corresponding to the output level; Calculating according to the average fuel consumption value and the corresponding output level to obtain a total fuel consumption value corresponding to the output level; Fitting the total fuel consumption value and the output level into a total fuel consumption curve of a quadratic function relation by using a least square method; Selecting any two points of the total fuel consumption curve as a first reference point and a second reference point respectively, and calculating to obtain a marginal fuel consumption value; And calculating to obtain the marginal fuel cost according to the recorded real-time fuel price and the marginal fuel consumption value. And by establishing a more accurate mathematical model, the measurement andcalculation accuracy is improved, so that the requirements of the electric spot market are met.

Description

technical field [0001] The invention relates to the technical field of electric power market, in particular to a method and device for calculating the marginal fuel cost of power generation of a generating set. Background technique [0002] The reform of my country's electricity market is in the stage of continuous deepening. For the organizers of the electricity market, the key to maintaining the orderly operation of the electricity market lies in perfect market rules, and the key point is how to restrict market members from using market power. Market power is the ability of market members to manipulate prices. In order to maintain the stable operation of the electricity market and the power system, it is necessary for the electricity market supervision department to supervise the electricity market and prevent behaviors that disrupt market order such as abuse of market power and collusion. [0003] It is an effective method to monitor market power to identify whether mark...

AI Technical Summary

Problems solved by technology

The unit power generation cost test methods involved in the published literature so far focus on the average power generation cost. Among them, CN106600109A discloses a method for estimating power generation cost based on the quotation information of power generation companies, but the method does not start from a physical model. The accuracy of the power generation cost is not high, and it is impossible to accurately identify whether the quotations of market members obviously deviate from the reasonable area, and it is only applicable to the medium and long-term matching transaction mode; revenue, but the method described does not involve accurate calculation of unit power generation costs

The mathematical model of the existing method is not accurate enough to meet the requirements of the electricity spot market

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