New energy fast frequency response control device

Abstract

The invention discloses a new energy fast frequency response control device, which comprises a communication module, a controller, a grid-connected point bus measurement module, a frequency measurement module and a human machine interaction module. The device collects voltage, current and grid frequency of the secondary side of the grid-connected point bus through the grid-connected point bus measurement module and the frequency measurement module. When the grid frequency is disturbed, real-time active power is calculated, an active power adjustment target value is calculated within a certaintime, the active power adjustment target value is issued to each power generating unit in a remote adjustment command mode through the Ethernet, and full station active power adjustment is completed.In addition, the device is connected to an AGC system, under cooperation of the AGC system, the device participates in grid fast frequency modulation, and when the grid frequency in a station exceedsa preset frequency response threshold, fast frequency modulation operation for the grid is realized, and safe and reliable operation of the power system is ensured.

Description

technical field [0001] The invention relates to the field of automatic control of new energy power generation, more specifically, to a fast frequency modulation control device applied in large-scale new energy stations. Background technique [0002] In recent years, with the promotion of new energy power generation technology in my country and the support of national policies. The power generation capacity of new energy sources such as photovoltaics and wind power has maintained rapid growth, and their proportion in the power grid is also increasing. The contradictions of power grid system regulation are also increasing, and there is an urgent need for new energy to participate in power grid frequency regulation to ensure the safe and stable operation of the power system. Due to the slow response time of the active power regulation system AGC of the existing new energy stations, often tens of seconds or even minutes, it cannot meet the requirements of fast frequency regulat...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rapid frequency regulation for large-scale new energy stations in view of the existing technology that does not have the ability to participate in the rapid frequency regulation of the power grid and cannot guarantee the safety and stability of the power system. control device

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