Frequency control method based on wind power consumption

Abstract

The invention discloses a frequency control method based on wind power consumption, comprising the steps as follows: A, calculating a wind power deviation of each sub-area in the control area; B, calculating a total wind power deviation of all sub-areas in the control area; C, distributing the total wind power deviation to each sub-area of the control area to adjust the regional control deviation,and calculating the adjusted regional control deviation after dynamic adjustment of each sub-area; and D, issuing a control command to the generator set in the sub-areas by the automatic power generation control system corresponding to the sub-areas according to the adjusted regional control deviation to realize the frequency modulation control. The invention is capable of sharing the frequency modulation responsibility equally among the sub-areas of the control area to further improve the current state of the frequency regulation of the power grid, so as to achieve the maximum complementaryfrequency modulation capability between the sub-areas, thereby ensuring safe and stable operation of the grid while improving the wind power consumption capacity of the grid.

Description

technical field [0001] The present invention relates to the technical field of electric power grid equipment, in particular to a frequency control method based on wind power consumption. Background technique [0002] my country has a vast territory and complex terrain. Therefore, according to different terrains, power generation methods are also different. Among them, wind power generation is mostly concentrated in the "Three North Areas", which has unfriendly characteristics such as strong fluctuation, intermittent, and anti-peak regulation, and the phenomenon of wind abandonment is very serious. Grid-connected wind power refers to medium-to-large wind turbines with hundreds to thousands of wind turbines installed in the wilderness and connected to the grid. At present, with the continuous popularization of UHV AC and DC lines and the implementation of national policies such as energy conservation and environmental protection, the amount of wind power connected to the grid...

AI Technical Summary

Problems solved by technology

At present, with the continuous popularization of UHV AC and DC lines and the implementation of national energy-saving and environmental protection policies, the amount of wind power grid-connected has increased on a large scale, but at the same time, the grid-connected space of conventional units has been greatly occupied, reducing the system inertia and frequency. Responsiveness is reduced, which greatly affects the efficiency of wind power consumption and poses a great potential safety hazard to the frequency security of the power grid. However, the traditional power grid frequency control method has been unable to eliminate the adverse effects of wind power grid integration and cannot meet the increasingly severe grid frequency regulation situation. need

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