Primary frequency modulation wind power cluster control system, method and device

Abstract

The invention discloses a primary frequency modulation wind power cluster control system, method and device. The system comprises a wind power plant power control strategy determination module, a fan AGC active regulation capability determination module and a cluster control module which are connected in sequence. According to the system, the wind energy margin of a single fan can be determined in an aerodynamic mode, and a wind power plant power control strategy is determined based on the wind energy margin; on the basis of the ultra-short-term wind energy margin and the current state of the draught fan, the AGC active power adjusting capacity value of the draught fan is determined; and performing unified coordination control according to the monitoring data of the fan, the reactive compensation data and the AGC active regulation capability value so as to realize closed-loop control of the voltage of the grid-connected point of the wind power plant. According to the invention, a wind-electricity combined control strategy can be realized, external input power of a power grid and output change characteristics and adjustment characteristics of various energy sources of a new energy station are analyzed and researched based on a power transmission center, and a final target is to realize friendly grid connection of new energy sources.

Description

technical field [0001] The invention relates to the technical field of wind power control, in particular to a primary frequency modulation wind power cluster control system, method and device. Background technique [0002] Wind power is one of the most mature and commercial power generation methods in the field of renewable energy utilization. Due to the abundant wind resources offshore, and the urgent need for the development and application of offshore wind power projects around the world, the transmission and grid connection of large-scale offshore wind power has become a hot topic in wind power development and research. [0003] At present, the offshore wind power cluster control technology is divided into active power control technology, reactive power control technology and safety and stability control technology according to functions. Among them, the active power control technology of offshore wind power: mainly used to adjust the output of offshore wind power, so t...

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Problems solved by technology

[0004] Several technologies commonly used at present have the following technical problems: Due to the complex offshore environment, the offshore wind cluster equipment is unstable in collecting power and transmitting power, and the power control through the above-mentioned technical methods can only be passively based on the current collected power. The power is regulated by power, and the regulation efficiency is low. Considering that the operation and maintenance of offshore wind power is limited by environmental conditions, the regulation is difficult and the regulation cost is high.

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