Frequency modulation auxiliary service transaction clearing method in transitional power market

Abstract

The invention discloses a frequency modulation auxiliary service transaction clearing method in transitional power market. The method comprises the steps that 1) the range of generator sets participating in power market optimal dispatching in a power grid is determined; 2) an independent frequency modulation transaction clearing model aiming at the minimum frequency modulation purchase cost is established; 3) a constraint in the independent frequency modulation transaction clearing model in the step 2) is extended; 4) a non-linear factor in an assessment model is linearized to acquire the linear model of power grid frequency modulation auxiliary service transaction clearing; and 5) a mixed integer linear programming method is used to solve the clearance model. The method provided by the invention has the advantages that on the basis of optimal frequency modulation service invoking, frequency modulation capacity assignment and power grid operation safety are jointly optimized; refined frequency modulation service invoking is realized under the condition of safe operation of the power grid; frequency modulation auxiliary service clearing is carried out based on the quotation of various market members; and safe operation of a power system is effectively guaranteed.

Description

technical field [0001] The invention relates to a method for clearing frequency modulation auxiliary service transactions in a transitional electric power market, and belongs to the technical field of electric power system dispatching automation. Background technique [0002] Power system frequency adjustment is an important task to ensure the safe and stable operation of the power system, and it is also an important content of power grid auxiliary services. The large-scale grid-connection of intermittent energy sources such as wind power and the structural fluctuation of load have increased the frequency regulation demand of the power grid. It is necessary to ensure the safe operation of the power system through lean frequency regulation resource mobilization. [0003] The market-oriented reform of the power industry continues to deepen, promoting the transformation of power supply from a regulated method to a market model. The market-oriented operation of frequency regula...

AI Technical Summary

Problems solved by technology

However, the frequency regulation capacity and regulation rate of the AGC unit are closely related to the power generation base point, and the coupling between the frequency regulation service and electric energy is very strong, and the two cannot be completely separated physically

There is a problem that the clearing results of independent transactions of frequency regulation auxiliary services are difficult to implement in the power grid

In particular, the security issues during the operation of the domestic power grid are usually severe, and the operating status of the frequency modulation unit under the clearing of the frequency regulation market has the risk of being difficult to meet the security constraints of the power grid

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