Wind power field grade yawing dynamic optimization method and system for sector adjusting and control

Abstract

The invention relates to the technical field of wind power field control, in particular to a wind power field grade yawing dynamic optimization method for sector adjusting and control. The method comprises the steps that onsite monitoring data of each wind power generator are obtained; payload data for expressing the part payload situation of all wind power generators are obtained; aiming at a plurality of pre-divided sectors, based on the onsite monitoring data and the payload data, whether wind power generators are influenced by wake flow of the other wind power generators in the corresponding sectors is judged one sector by one sector; and the wind power generator which is influenced by the wake flow is subjected to yawing optimization control so that the corresponding wind power generator can reach the optimal power and optimal payload under control of a yawing motor. The invention further relates to a wind power field grade yawing dynamic optimization system for sector adjusting and control. According to the wind power field grade yawing dynamic optimization method and system for sector adjusting and control, new yawing control strategies are made aiming at the wind power generators influenced by wake flow so as to ensure the effect that the wind power generators can also capture more wind energy when are influenced by the wake flow, and meanwhile, payload increasing is reduced.

Description

technical field [0001] The invention relates to the technical field of wind farm control, in particular to a wind farm-level yaw dynamic optimization method and system for sector regulation. Background technique [0002] As an important factor affecting the economic benefits of wind farms, the wake effect of wind turbines can easily lead to a decrease in wind speed and an increase in turbulence in the wake area, resulting in power loss of downstream wind turbines, increased fatigue loads, and vibration and mechanical damage of wind turbines. The yaw action of the front row unit can have a certain impact on its wake. Theoretically, the unit yaw angle management can be realized through sector management, so as to change the distribution of the wind blowing to the rear row unit in space and speed, and achieve a certain degree of wake improvement. [0003] The yaw system, also known as the wind-facing device, is a part of the wind turbine nacelle. Its function is to quickly and...

AI Technical Summary

Problems solved by technology

Whether the dynamic process of yaw is timely and whether the wind speed is fast will affect the wind energy capture efficiency of wind turbines to a large extent, and then affect the power generation

[0004] Although the yaw control strategy of the existing wind turbines can meet the wind in time and capture more wind energy, it ignores the influence of the wake effect of the wind farm on the yaw of the wind turbines.

Images