Unit combination method for providing auxiliary service based on electrolytic aluminum load and related device

Abstract

The invention discloses a unit combination method for providing auxiliary service based on an electrolytic aluminum load and a related device. The method comprises the steps: obtaining electrolytic aluminum related data and basic data of unit combination; constructing an electrolytic aluminum load-based auxiliary model according to the electrolytic aluminum related data and electrolytic cell characteristics, wherein the electrolytic cell characteristics comprise power characteristics, spinning reserve characteristics, heat balance characteristics and yield characteristics; constructing a unitcombination model according to the basic data and the auxiliary model, wherein the unit combination model comprises unit constraint conditions; and solving the unit commitment model according to a preset mixed integer linear programming algorithm to obtain a target unit commitment scheme. The method can solve the problems faced by the electrolytic aluminum industry, and can adapt to the development of the current power grid unit combination.

Description

technical field [0001] The present application relates to the technical field of power grid dispatching, in particular to a unit combination method and related devices for providing auxiliary services based on electrolytic aluminum loads. Background technique [0002] With the continuous increase of electricity demand and the introduction of a large number of new energy sources, it is difficult to meet the needs of power grid regulation capabilities only by relying on the existing generation-side optimal dispatching technology. [0003] As one of the high energy-consuming loads, the electrolytic aluminum load consumes a lot of power; a typical electrolytic aluminum plant can reach hundreds of megawatts or even gigawatts; Under the premise of affecting production efficiency, the load power can be controlled quickly and accurately, then the electrolytic aluminum load can make beneficial adjustments to the power system. [0004] At the same time, in recent years, my country's ...

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Problems solved by technology

[0004] At the same time, in recent years, my country's electrolytic aluminum industry has expanded rapidly, resulting in excess capacity and oversupply of electrolytic aluminum; the serious environmental pollution problems brought about by the electrolytic aluminum industry have also prompted the country to begin to control and adjust the development of the electrolytic aluminum industry; for electrolytic aluminum enterprises , the prices of raw materials such as alumina and coal have risen again and again, and the product structure is single, which makes its benefits not optimistic. It is urgent to explore other potentials of electrolytic aluminum load

[0005] The problems faced by the electrolytic aluminum industry and the difficulty in meeting the regulation capacity of power grid units with the existing optimal dispatching technology on the power generation side have limited the development of power grid unit combinations. At present, there is still a lack of relevant research that comprehensively considers the electrolytic aluminum load and unit combination problems

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