Wind-solar-thermal storage capacity optimal configuration method in power grid planning

Abstract

The invention relates to a wind-solar-thermal storagecapacity optimization configuration method in power grid planning. The method operates by computer equipment and programs and comprises the following steps: step A, acquiring and preprocessing historical annual power transmission data, energy output data and energy storage device data; step B, predicting a future total power consumption load curve; step C, making an annual maintenance schedule of a thermal power generating unit, determining a peak regulation space of the unit every day, and fitting a coal consumption curve of each unit; stepD, carrying out traversal calculation on the capacity of each power supply and energy storage combination; step E, selecting a group of power supply capacity combinations to perform daily balance calculation and counting wind power, photoelectricity, thermal power and energy storage operation data; step F, performing economical efficiency measurement and calculation on the operation data; step G,judging whether all combinations are traversed or not; step H, comparing all capacity combination results, and determining an optimal capacity configuration scheme; and the optimization effect of system investment and operation economy is achieved.

Description

technical field [0001] The invention relates to the technology of proportion of new energy consumption in the power grid and the field of power grid planning and design, and specifically relates to a capacity optimization configuration method of wind and thermal storage in power grid planning. Background technique [0002] Nowadays, due to the depletion of fossil energy and environmental pollution on a global scale, the rapid development of renewable energy is promoted. Among them, wind power and solar power have the advantages of abundant reserves, pollution-free, renewable, etc., and the technology is relatively mature, which makes them a promising alternative energy source in the future and has been widely used. [0003] At present, most areas in northern my country are dominated by thermal power. In recent years, the proportion of wind power generation capacity in the power grid has also increased year by year. However, due to the intermittence, randomness, volatility a...

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Problems solved by technology

[0005] However, there is currently no better method that can achieve the above goals. In view of the existing problems and the above demands, the present invention innovatively proposes a capacity optimization configuration method for wind and thermal storage in power grid planning, so as to realize the In the planning and design, comprehensively consider factors such as transmission channels, local loads, regional resource differences, improve coal-fired power regulation performance through flexible transformation, and increase energy storage facilities, etc., and rationally allocate the capacity ratios of thermal power, wind energy, solar energy, and energy storage

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