A multi-energy complementary coordinated power generation scheduling method based on a wind-light-water-fire storage combined system

Abstract

The invention relates to a multi-energy complementary coordinated power generation scheduling method based on a wind-light-water-fire storage combined system, which is characterized by comprising thefollowing steps of firstly, simulating a time sequence for producing the wind power / photovoltaic output by utilizing an improved Markov chain method; secondly, determining load requirements, minimum economic output of a thermal power generating unit and boundary conditions of forced output of a hydraulic power plant, and calculating a renewable energy power generation operation feasible region; then, preferentially arranging wind power and photovoltaic power generation in the renewable energy power generation operation feasible region, and formulating a water and electricity dispatching strategy on the basis of the wind power and photovoltaic power generation; and finally, comprehensively considering the operation cost of the thermal power generating unit and the energy storage operation cost considering life loss; formulating a thermal power generating unit and energy storage combined dispatching strategy with the minimum total operation cost of the thermal power generating unit and energy storage in the dispatching period as the target, solving a corresponding optimization objective function through a particle swarm algorithm, and then obtaining the wind-light-water-heat-storagecombined system dispatching strategy. The method has the advantages of scientificity, reasonableness, simplicity, applicability and the like.

Description

technical field [0001] The invention relates to the field of multi-energy complementary coordinated power generation scheduling in power systems, and is a multi-energy complementary coordinated power generation scheduling method based on a wind, water, thermal storage combined system. Background technique [0002] In recent years, the installed capacity of renewable energy power generation has grown rapidly. By the end of 2017, the global installed capacity of wind power, photovoltaic power and hydropower reached 539.58GW, 403.5GW and 1267GW respectively. Compared with thermal power that burns fossil fuels, wind power and photovoltaic power generation can reduce environmental pollution and improve the energy structure. However, wind power and photovoltaic power output fluctuate. With the rapid development of wind power and photovoltaic power, it is difficult to balance the supply and consumption of wind power and photovoltaic power. The disadvantages of solar energy have bec...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing research focuses on the operating characteristics of wind-solar, hydro-thermal and other independent power generation systems, or the modeling, simulation and optimal configuration of wind-solar, wind-shui, and wind-storage energy, and wind-solar water, wind-storage, wind-storage, and three energy complementary power generation systems. , control strategies, etc., there are relatively few strategies for wind, water, thermal storage, multi-energy complementary coordinated power generation dispatching

And most of them determine the scheduling strategy from the perspective of improving the fluctuation of renewable energy and realizing energy conservation and emission reduction, but do not mention how to formulate the scheduling strategy of the combined system of wind, water, heat and storage to improve the consumption of renewable energy

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