Energy pricing method and system of electricity-gas combined system and storage medium

Abstract

The invention discloses an energy pricing method for an electricity-gas combined system, and the method comprises the steps: building and considering an energy contract, and taking a power network constraint, a natural gas network constraint and an electricity-gas combined network coupling constraint as constraint conditions; a day-ahead market clearing model of the electricity-gas combined system is obtained by taking minimization of the sum of the electricity purchase cost of a power grid company and the gas purchase cost of a natural gas company as an objective function, and the sum of the electricity purchase cost and the gas purchase cost of other members when each member participates in and does not participate in market day-ahead clearing is calculated through the day-ahead market clearing model. And the energy price is formulated by taking the variable quantity of the sum of the electricity / gas purchasing fees of other members as the value of the member. According to the technical scheme, an energy operator formulates an energy price mechanism according to the value of each member obtained by the method, the market members can be prompted to report real prices in bidding in order to achieve the maximum benefits of the market members, and effective scheduling and stable operation of the electricity market are ensured.

Description

technical field [0001] The invention relates to the technical field of power dispatching, in particular to an energy pricing method, system and storage medium for an electric-gas combined system. Background technique [0002] Natural gas is low cost, flexible and environmentally friendly. In recent years, natural gas-fueled generators have gained popularity due to their greater energy efficiency and less pollution. With the proposal of the "Energy United Network", the interdependence among various energy sectors has greatly increased, the coupling relationship between the natural gas network and the electric power network has become closer, and more economic and environmental benefits can be obtained by combining power and natural gas. benefit. [0003] In the existing domestic and foreign power markets, LMP (Location Marginal Pricing) has been widely used for settlement. However, it has been proved by theory and practice that the marginal electricity price mechanism cann...

AI Technical Summary

Problems solved by technology

However, it has been proved by theory and practice that the marginal electricity price mechanism cannot guarantee the compatibility of incentives, and power generators will manipulate prices through strategic quotations with the goal of maximizing their own interests, resulting in low market operation efficiency

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