Control method for distribution of active power and reactive power of wind power generator

Abstract

The invention provides a control method for distribution of an active power and a reactive power of a wind power generator, and belongs to the technical field of wind power generation. The control method of distribution of the active power is listed as follows: data of all wind power generators in a wind power plant are acquired in real time, and the real-time total active power, the total reactive power and average wind speed of the wind power plant are calculated; the real-time total active power of the wind power plant and the total active power with a set value issued by the wind power plant are compared and judged so that a power differential value delta P is obtained; a range value of the total active power of an electric field is set based on the power differential value; the total active power of the real-time wind power generators in the current wind power plant is maintained to be within the set range value of the total active power, a power distribution value of each wind power generator is calculated to be the real-time active power value of each wind power generator and maintained to be unchanged within the range. The active power and the reactive power of the wind power generators can be simultaneously controlled. The total power of the wind power generators is maintained to fluctuate in a stable environment so that interference of a power grid is reduced.

Description

Technical field [0001] The invention belongs to the technical field of wind power generation, and specifically relates to a control method for the distribution of active power and reactive power of a wind generator. Background technique [0002] With increasing energy consumption and increasing environmental pollution today, wind energy as a renewable green energy source is generally valued by countries all over the world, and wind power technology has also become a research focus. The installed capacity of wind farms is getting larger and larger, and the proportion of wind power output in the total power of the grid is increasing. The grid-connected power generation of wind farms has an increasing impact on the existing power system. The energy source of wind power is wind energy. Due to the instability of wind energy, the grid-connected power generation of wind farms is different from traditional power generation. Power regulation technology is one of the shutdown technologies...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned technical problems, and solving the problem that each wind turbine cannot be reasonably controlled in the prior art, and the entire wind field cannot be fluctuated within a stable range during control, the present invention provides a wind power generator Control method of active power and reactive power distribution

Images