Hydropower station medium-and-long-term transaction plan decomposition method considering spot market bidding space

Abstract

The invention belongs to the field of power markets and the field of hydropower dispatching operation, and particularly relates to a hydropower station medium-and-long-term transaction plan decomposition method considering spot market bidding space. The method comprises the following steps: constructing a cascade hydropower station medium-and-long-term transaction plan decomposition model which isbalanced as much as possible by remaining spot goods bidding space and gives consideration to fairness among watershed cascade; determining a medium and long term transaction plan completion deviation margin based on a power market deviation evaluation settlement rule; according to the corresponding relation between the electricity market transaction unit and the hydropower dispatching unit, themedium-and-long-term transaction plan electric quantity of the dispatching unit is obtained through calculation, the medium-and-long-term transaction plan electric quantity, the predicted cascade system simulation load, hydropower station incoming water and actual hydropower station operation data serve as input conditions of the model together, and finally a nonlinear planning method is adopted for model solving. The method is helpful for alleviating violent fluctuation of spot market electricity price, thereby providing an effective cascade hydropower station medium-and-long-term transactionplan decomposition method for the hydropower-enriched electricity market.

Description

technical field [0001] The invention belongs to the field of electric power market and the field of hydropower dispatching operation, and in particular relates to a method for decomposing medium and long-term transaction plans of hydropower stations in consideration of bidding space in the spot market. Background technique [0002] Since the new round of power system reform, my country has established a relatively complete multi-variety medium- and long-term trading system, mainly forming monthly-scale physical power contracts, which can effectively help market members control trading risks and lock in power prices. In order to further improve the timeliness of the optimal allocation of electric energy resources, and provide economic signals that can reflect the short-term supply and demand relationship and market value of the electric power market, the General Affairs Department of the National Energy Administration issued the "About Further Promoting the Pilot Project of El...

AI Technical Summary

Problems solved by technology

If the mid-to-long-term contract cannot be reasonably decomposed, it will be difficult to execute the contract, and the actual power generation scheduling process is seriously inconsistent with the contract decomposition process. Most power plants cannot complete the transaction plan, resulting in a large number of over-generation or under-generation, resulting in settlement deviation assessment, resulting in The loss of interests is also not conducive to the stable development of the follow-up spot market, it is difficult to achieve the full consumption of clean energy, it is not conducive to the low-carbon transformation of the energy structure, and it is contrary to the original intention of the power market construction that uses market means to optimize the allocation of resources

[0004] For the hydropower enrichment power market, there is a very close hydraulic and electric connection between the upstream and downstream cascade hydropower stations, and the coordination relationship between the upstream and downstream needs to be fully considered when decomposing the contract, which increases the complexity and difficulty of contract decomposition

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