Ultra-short-term operation scheduling method and device for electric power system

Abstract

The invention discloses an ultra-short-term operation scheduling method of an electric power system. The method comprises the steps of constructing a first hydropower optimization scheduling constraint condition; determining the type and the quantity of flexible resources which are put into ultra-short-term operation simulation; performing ultra-short-term operation simulation containing the firsthydropower optimization scheduling constraint condition on the electric power system according to an original starting mode of a conventional unit of the electric power system and the type and the number of the flexible resources so as to calculate a scheduling result of the electric power system; judging whether the climbing capacity vacancy and the peak shaving capacity vacancy of the power system are 0 or not according to the dispatching result of the electric power system; if yes, outputting the starting mode of the electric power system; and if not, outputting the climbing and peak shaving capacity vacancies of the electric power system. The invention further discloses a corresponding scheduling device. By implementing the method, the water and electricity dispatching operation requirements of the power system can be effectively considered, so that the flexibility of the electric power system is effectively improved on the basis of maintaining the optimal economy and the optimalutilization of water resources.

Description

technical field [0001] The invention relates to the technical field of electric power system dispatching, in particular to a method and device for ultra-short-term operation dispatching of electric power systems. Background technique [0002] With the continuous improvement of social industrialization and automation, the demand for energy in social development is increasing. At present, wind energy, solar energy, hydropower and other new energy power generation have occupied an important position in the modern power system. Although the new energy power generation industry is developing rapidly, due to problems such as lack of planning, disorderly development, and imperfect related energy policies, new energy The problem of power generation planning and grid connection is difficult to solve in the short term, and the phenomenon of abandoning wind, solar and water in some provinces in my country is still very serious. The proportion of new energy access in the power system is...

AI Technical Summary

Problems solved by technology

[0003] In order to avoid the problem of insufficient system flexibility, the existing technology proposes ultra-short-term scheduling and simulation analysis of additional flexible resources to meet the peak-shaving and slope-climbing requirements of the power system

However, in the process of implementing the present invention, the inventors found that the prior art has at least the following problems: under the background of large-scale hydropower production and operation, the ultra-short-term operation simulation scheme of the prior art does not take into account the daily adjustment hydropower dispatching operation requirements of the hydropower station, and the daily Adjusting the water level of the hydropower station is sensitive, and it is easy to cause the water level to exceed the limit, resulting in water abandonment or low power generation efficiency.

The methods of the existing technology cannot meet the requirements of hydropower dispatching operation, and the dispatching results of the power system are still not optimized and flexible enough

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