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Optimized control method for wind power field reactive power compensation capacity considering wind power distribution rule

A technology of distribution law and compensation capacity, applied in reactive power compensation, reactive power adjustment/elimination/compensation, wind power generation, etc., can solve the problems of arbitrary determination of compensation capacity and failure to consider the regular information of wind farms, etc.

Inactive Publication Date: 2012-10-17
SHANDONG UNIV
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Problems solved by technology

[0010] The above research has achieved certain results, but there are still two problems: one is that it is mostly aimed at asynchronous wind farms, and DFIG wind farms also need to consider compensation issues; Arbitrary

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  • Optimized control method for wind power field reactive power compensation capacity considering wind power distribution rule
  • Optimized control method for wind power field reactive power compensation capacity considering wind power distribution rule
  • Optimized control method for wind power field reactive power compensation capacity considering wind power distribution rule

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Embodiment Construction

[0108] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0109] Such as figure 1 As shown, a wind farm reactive power compensation capacity optimization method considering the distribution of wind power, the working steps are as follows:

[0110] Step 1: start;

[0111] Step 2: Divide into three branches A, B, and C, and these three branches are carried out concurrently;

[0112] Branch A: collect historical wind power data, and analyze the distribution of wind power in different periods;

[0113] Branch B: collect performance parameters of reactive power compensation equipment;

[0114] Branch C: collect DFIG performance parameters, analyze the characteristics of DFIG's P-Q decoupling, and process wind farm nodes in power flow calculation;

[0115] Step 3: Use the reactive power compensation capacity optimization model for optimization processing. The goal of optimization is to minimize the investment co...

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Abstract

The invention discloses an optimized control method for wind power field reactive power compensation capacity considering wind power distribution rule; according to the method, a reactive power compensation capacity optimization model is utilized to carry out an optimized treatment, and the optimization target is that investment cost of reactive power compensation and operation cost of wind power system caused by reactive power are minimized; operation cost and investment cost are calculated; the operation cost comprises the affect of wind power distribution result and power property; and an optimized calculation is carried out by utilizing a particle swarm optimization algorithm combined with a power flow calculation program. The method has the beneficial effects that according to the optimization decision method of the compensation capacity, the reactive power compensation of a wind power field has the best economical efficiency and the strongest pertinency on the premise of adequately ensuring continuity of reactive power adjustment by wind power system.

Description

technical field [0001] The invention relates to a wind farm reactive power compensation capacity optimization control method taking into account the distribution law of wind power. Background technique [0002] The reactive power and voltage regulation of wind power is one of the important factors affecting the safe and stable operation of itself and the power grid. [0003] At present, the focus of research in this field is on the reactive power and voltage coordinated control of wind farms and access systems, including coordination strategies among units, wind farms, farm groups, and access systems, and many research results have been achieved. However, the wind farm composed of doubly-fed units has fluctuations in the reactive power adjustment capability with the change of active power, and it is difficult to maintain a certain voltage level only by adjusting its own reactive power. At the same time, recently, wind turbine off-grid incidents have occurred frequently due ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18
CPCY02E10/763Y02E40/30Y02E10/76
Inventor 王成福梁军冯江霞
Owner SHANDONG UNIV
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