Method and system for optimizing load declaration of electricity sellers in electricity spot market

A technology of electricity market and optimization method, applied in market forecasting, design optimization/simulation, information technology support system, etc., can solve the problems affecting the rationality and reliability of decision-making results, difficulty in ensuring the rationality of electricity sales and purchase transactions, and power load declaration Unreasonable problems, to achieve the effect of reasonable electricity price forecast, reasonable electricity purchase by electricity retailers, and reduced electricity purchase costs

CN112651770BActive Publication Date: 2022-05-17SHANDONG UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2022-05-17

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Abstract

The method and system for optimizing the load declaration of electricity sellers in the electricity spot market provided by the present invention belong to the technical field of electricity trading, and obtain the historical information of the electricity market and the real-time information of the electricity market; according to the historical information of the electricity market and the real-time information of the electricity market, Taking the minimization of electricity purchase cost as the goal, the day-ahead market load declaration model of electricity sellers is established; the improved deep Q network algorithm is used to optimize and solve the day-ahead market load declaration model of electricity retailers, and the day-ahead market load declaration curve of electricity retailers is obtained. The present invention aims at minimizing the comprehensive power purchase cost of electricity sellers, takes load limitation and deviation assessment as constraints, comprehensively considers the uncertainty of various clearing electricity prices and loads, improves the accuracy of power load declaration, and improves the load declaration The referenceability of the results makes the power purchase of electricity sellers more reasonable in the electricity market, significantly reduces the cost of electricity sellers' purchase of electricity, reduces the waste of resources, and makes resource allocation more reasonable.
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Description

technical field

[0001] The present invention relates to the technical field of electric power trading, in particular to a method and system for optimizing the load declaration of electricity sellers in the electric power spot market. Background technique

[0002] With the opening of the electricity sales side of the electricity market, social capital has invested in various electricity sales companies, breaking the monopoly of electricity sales, building multiple electricity sales entities, and greatly changing the existing electricity market structure and operating model. Facing the new situation of various electricity retailers participating in electricity market transactions, reasonable power declaration and price decision-making methods are of great significance for electricity retailers to optimize their own trading plans, maximize revenue and optimize the allocation of electricity market resources.

[0003] The main business of electricity sellers is to purchase electr...

Examples

Embodiment 1

[0059] In Example 1, for a certain regional electricity spot trading market, it is assumed that the studied electricity seller plays the role of "price taker" in the electricity market, that is, the market size is large enough compared to a single electricity seller, so that The impact of the power purchase behavior of electricity retailers on the market's comprehensive electricity price is negligible.

[0060] According to the existing research, the main environmental factors affecting the profits of "price taker" electricity sellers in the electricity spot market are the comprehensive electricity price of each stage of the market and the load of various users. Under the current electricity market rules in the region, the transaction mode of electricity sellers is as follows: figure 1 shown.

[0061] In the day-ahead market, the power market first releases information related to day-ahead market transactions to members, such as day-ahead forecast load, unit operation, and gr...

Embodiment 2

[0124] In this embodiment 2, a load declaration optimization system for electricity sellers in the electricity spot market based on the load declaration optimization method for electricity sellers in the electricity spot market as described in Embodiment 1 is provided, aiming at a "price taker" type electricity seller Quotient expansion calculation example simulation.

[0125] The load declaration optimization system for electricity sellers in the electricity spot market includes:

[0126] The information acquisition module is used to obtain various types of information released by the electricity market: the various types of information released by the electricity market include comprehensive electricity prices at various stages of the electricity market, various user load data, historical electricity purchase costs of electricity retailers, and real-time releases by the electricity market Forecast data, including day-ahead load forecast, day-ahead comprehensive electricity p...

Embodiment 3

[0155] Embodiment 3 provides a computer device, including a memory and a processor, the processor and the memory communicate with each other, the memory stores program instructions executable by the processor, and the processor calls the The program instruction executes the above-mentioned method for optimizing the load declaration of electricity sellers in the electricity spot market.