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Wind power plant active power distribution method considering unit fatigue load

A technology of active power and fatigue load, applied in wind power generation, climate change adaptation, single grid parallel feeding arrangement, etc., can solve the problem of rough distribution of active power in wind farm clusters, and achieve the effect of reducing the overall fatigue load

Active Publication Date: 2020-01-10
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

[0004]The purpose of this invention is to provide a wind farm active power distribution method that considers the fatigue load of the unit to solve the problem of rough distribution of wind farm cluster active power. Improving wind power cluster output under the condition of affecting unit fatigue load

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  • Wind power plant active power distribution method considering unit fatigue load
  • Wind power plant active power distribution method considering unit fatigue load
  • Wind power plant active power distribution method considering unit fatigue load

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Embodiment Construction

[0124] A wind farm active power distribution method considering unit fatigue load, characterized in that: the method performs power distribution through three levels:

[0125] details as follows:

[0126] 1) The first layer is the wind power cluster distribution layer. The wind power cluster distribution layer uses the wind speed prediction information of each wind farm to calculate the power generation, and distributes the active power reference value of the cluster according to the ratio between the power generation values ​​calculated by each wind farm. Wind farm distribution layer;

[0127] 2) The second layer is the wind farm allocation layer, which assigns the cluster active reference values ​​received in the first layer to different types of units according to the results of cluster analysis by using the prioritization method;

[0128] 3) The third layer is the unit distribution layer, which distributes the active power reference values ​​received by various units to e...

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Abstract

The invention discloses a wind power plant active power distribution method considering the unit fatigue load, which is characterized in that 1) the first layer is a wind power cluster distribution layer, wherein the wind power cluster distribution layer uses wind speed prediction information of each wind power plant to calculate the transmittable power, and distributes cluster active reference values to a wind power plant distribution layer according to the proportion of the calculated transmittable power values of each wind power plant; 2) the second layer is a wind power plant distributionlayer which distributes the cluster active reference values received in the first layer to different types of units by adopting a priority ranking method according to a clustering analysis result; and3) the third layer is a unit distribution layer which distributes the active reference values received by the various units to the units. The problems existing in the prior art are well solved, the impact of high-permeability wind power on a power grid is reduced, and the coordination in a wind power cluster is enhanced and the output is improved under the condition of not influencing or even reducing the fatigue load of the units.

Description

technical field [0001] The invention belongs to the application field of wind farms, and in particular relates to a method for distributing active power of wind farms in consideration of unit fatigue loads. The wind farm layer uses the fuzzy c-means clustering method to cluster the generators according to the fatigue loads generated by the low-speed shaft torque and tower bending moment of the generators in the field, and assigns the wind farm power reference value to the generator layer. Background technique [0002] With the large-scale application of wind power represented by wind farm clusters, the randomness, unpredictability and low controllability of wind power have brought severe challenges to the power balance and safe operation of the power grid. The existing wind power cluster active power scheduling method is relatively rough, which will result in poor adjustment accuracy and low output of the wind power cluster active output after scheduling, and the change of t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/48
CPCH02J3/48Y02A30/00Y02E10/76Y02E10/72
Inventor 刘颖明王瑛玮王树旗王晓东
Owner SHENYANG POLYTECHNIC UNIV
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