Active power distribution coordination method of units in wind power plant

Abstract

The invention relates to an active power distribution coordination method of units in a wind power plant and belongs to the technical field of electric power system automatic analyzing. The method is characterized in that fan critical rotation speed is obtained through wind turbine generating unit balance point stability analyzing, the units in the wind power plant are divided into non-controlled units and controlled units according to the critical rotation speed, the non-controlled units and the controlled units are allowed to use different active output manners according to the different output features of the two kinds of units, and unbalanced energy is proportionally distributed among the controlled units according to the actual stored energy of the units. The method has the advantages that the method is easy to implement and small in calculation amount, an operator can reasonably distributes the active output of the units in the wind power plant by the aid of the method, safe and economic system operation under the background that new energy is accessed to a power grid is powerfully guaranteed, sustainable, stable and healthy development of the power grid is promoted, national energy safety guarantee capability is increased favorably, and evident social and economic values are achieved.

Description

technical field [0001] The invention belongs to the technical field of wind power generation, and in particular relates to a method for classifying different types of units in a wind farm, considering the output characteristics of the units, and distributing them in proportion to the actual stored energy of the units, thereby obtaining a method for coordinating active power distribution of the units in the wind farm. Background technique [0002] With the large-scale development of wind power generation, the side dispatching of wind power generation system will bear more and more pressure of random power adjustment. Most of the existing wind farms occupy a large area and have complex terrain conditions. The units in each area of ​​the field have different output characteristics, and each unit in the same area may have different operating modes. Therefore, it is definitely not the most economical and reasonable distribution method to deal with the power regulation problem of ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the existing methods of active power distribution in wind farms use the ultra-short-term wind power value, and select the economy, output and planning fluctuations to be minimized as the optimization goal, but the types and output characteristics of different units are not considered enough, and the calculation method Complicated and computationally intensive

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