Wind power plant frequency control method and device

Abstract

The invention provides a wind power plant frequency control method and device which are executed by field control equipment as a master station or a substation. The wind power plant frequency control method executed by using the field control equipment as the master station comprises the following steps: calculating standby power of a third-party substation; calculating a power distribution strategy of the third-party substation according to the standby power of the third-party substation and the primary frequency modulation instruction; and the power distribution strategy of the third-party substation is sent to the third-party substation, so that the primary frequency modulation function of the fan of the third-party manufacturer is controlled in the master station mode. The wind power plant frequency control method executed by using the field control equipment as the substation comprises the following steps: acquiring an AGC instruction value of a wind power plant from a third-party master station; calculating standby power of the wind power plant; and on the basis of the received power instruction sent by the third-party master station, the AGC instruction value of the wind power plant and the standby power, the active power of the whole wind power plant is distributed, so that the primary frequency modulation function controlled by the field control equipment of the third-party manufacturer in the substation mode is realized.

Description

technical field [0001] The present disclosure relates to the technical field of wind power generation. More particularly, the present disclosure relates to a wind farm frequency control method and device. Background technique [0002] The scale of wind power grid-connected installed capacity has grown rapidly, and the scale of wind power grid-connected will continue to increase in the future. In recent years, with the development of UHV power grids and the continuous large-scale integration of new energy sources, UHV AC and DC hybrid power grids have gradually formed, the grid pattern and power supply structure have undergone major changes, and power grid characteristics have also undergone profound changes. Under the background of access and large-capacity DC transmission, the grid-connected operation conditions of large-scale wind power are more complicated. As the proportion of new energy sources increases, the original thermal power and hydropower frequency regulation ...

AI Technical Summary

Problems solved by technology

In recent years, with the development of the UHV power grid and the large-scale continuous grid connection of new energy, the UHV AC-DC hybrid power grid has gradually formed, the power grid pattern and power structure have undergone major changes, and the characteristics of the power grid have also undergone profound changes. Under the background of access and large-capacity DC transmission feed-in, the operating conditions of large-scale wind power grid connection are more complicated

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