Wind-solar hydrogen storage AC-DC hybrid power distribution energy routing control method

Abstract

The invention relates to a wind-solar hydrogen storage AC-DC hybrid power distribution energy routing control method. The method comprises the following steps of: 1, acquiring static data and operation data, calculating an available load transfer capability coefficient of each VSC, selecting a minimum value, assuming a corresponding subscript to to be m, taking a VSCm as a master control VSC, and establishing a DC network voltage, taking the rest VSCs as slave stations to receive power scheduling; 2, solving an equalization factor, and determining power increments of the other VSCs based on the equalization factor; and 3, when whether an adjustable load exists in a direct current bus is judged, performing coordination control on each VSC according to a corresponding condition, when no adjustable load exists in the direct current bus, performing fine adjustment on each VSC, and when the direct current bus has an adjustable load, adjusting the direct-current hydrogen production load according to the voltage of the direct current bus. The method is beneficial to operation control and energy management of a wind-solar hydrogen storage alternating current-direct current hybrid power distribution system, and can effectively deal with abnormal conditions such as alternating current system faults and the like.

Description

technical field [0001] The invention relates to the field of electric power, in particular to an energy routing control method for wind-solar hydrogen storage AC-DC hybrid power distribution. Background technique [0002] In the alpine regions of northern my country, such as Zhangjiakou, Hebei, and Huludao, Liaoning, renewable energy sources such as solar energy and wind energy are widely distributed and rich in resources. The unique technical advantages such as long mileage and low energy consumption have become increasingly prominent, and have gradually become an important carrier and key link of the new energy green transportation industry in cold and high-altitude cities. The comprehensive system of hydrogen production-hydrogen storage-hydrogen utilization by wind-solar hybrid power generation organically integrates hydrogen energy with renewable energy, and is supported by low-cost hydrogen production, which can improve the full consumption of renewable energy and effect...

AI Technical Summary

Problems solved by technology

[0005] Abnormal situations such as AC system failure may occur in the wind-solar hydrogen storage AC-DC hybrid power distribution system, especially when the AC system connected to the main station VSC fails, it will switch to the AC constant frequency constant voltage control strategy and cannot continue to use Determine the DC voltage control strategy to effectively support the DC voltage, which will also lead to an abnormal state of the system

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