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Wind power grid-connected voltage hierarchical coordination control method, system, medium and equipment

A technology of coordinated control and voltage, applied in the direction of AC network voltage adjustment, reactive power compensation, etc., can solve the problems of uncertainty, over-limit, reactive power and voltage control deviation, etc. Effects of stability, guaranteed plausibility and accuracy

Active Publication Date: 2021-11-16
SHANDONG UNIV
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Problems solved by technology

Although MPC has certain robustness to prediction error, with the increase of prediction error, it is very easy to cause large deviation or over-limit of reactive power voltage control.
Therefore, MPC cannot systematically deal with the uncertainty of wind power in the maximum power point tracking mode of operation

Method used

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  • Wind power grid-connected voltage hierarchical coordination control method, system, medium and equipment
  • Wind power grid-connected voltage hierarchical coordination control method, system, medium and equipment
  • Wind power grid-connected voltage hierarchical coordination control method, system, medium and equipment

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Embodiment Construction

[0039] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.

[0040] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0041] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations...

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Abstract

The disclosure provides a wind power grid-connected voltage layered coordination control method, system, medium and equipment. Through vertical layering, the control links of discrete and continuous reactive power compensation equipment are divided into different layers. In different layers, use The wind power prediction information of different time scales implements stochastic model predictive control on the compensation equipment in this layer, and the continuous and discrete reactive power compensation equipment between layers can also be effectively coordinated.

Description

technical field [0001] The disclosure belongs to the field of wind power, and relates to a wind power grid-connected voltage hierarchical coordination control method, system, medium and equipment. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Affected by the distribution of wind energy resources, a large number of large-scale wind farms are far away from the load center and connected by the end of the power grid. There is a weak connection between this type of wind farm and the system, lacking strong and effective voltage support from the system side. At the same time, due to the high R / X ratio of the transmission system in the wind farm, the effect of active power on the voltage performance is more significant. Therefore, affected by the inherent volatility and randomness of wind power itself, the voltage regulation at the point of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/16
CPCH02J3/16Y02E40/30
Inventor 王成福张哲董晓明杨明
Owner SHANDONG UNIV
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