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Wind power transient process division method and device

A transient process and wind power technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve the problem that there are few automatic division methods for the transient interval of the response curve, and it is difficult to meet the online monitoring of high-proportion wind power systems and the online performance of grid connection. Evaluation and other issues to achieve the effect of fast calculation speed, improved security and stability, and easy software implementation

Pending Publication Date: 2021-06-11
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0003] At present, the method of distinguishing the transient process of the data (current, voltage, active power, reactive power, etc.) response curve is mainly determined by human observation combined with relevant test evaluation standards, which is difficult to meet the online monitoring and parallel monitoring of high-proportion wind power systems. Therefore, there is an urgent need in engineering to find a method that can automatically divide the transient process of the response curve through online detection data without human participation.
[0004] So far, there are few studies on the automatic division method of the transient interval of the response curve, and there are no relevant documents and patents disclosing such a method

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  • Wind power transient process division method and device

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Embodiment Construction

[0052] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] Since so far, there are few studies on the automatic division method of the transient interval of the response curve, and there are no relevant documents and patents disclosing s...

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Abstract

The invention relates to a wind power transient process division method and device. The method comprises the following steps: determining a transient subinterval of a wind power plant according to a first-order difference group corresponding to a sampling data array of the wind power plant, and dividing the transient interval of the wind power plant based on a second-order difference group corresponding to the sampling data array of the wind power plant and the transient subinterval of the wind power plant. In order to meet the urgent requirements of online monitoring of the high-proportion wind power system and online evaluation of the grid-connected performance, the transient process of the response curve is automatically divided through online detection data under the condition of no person participation, and the safety and stability of the wind power system are effectively improved.

Description

technical field [0001] The invention relates to the fields of self-adaptive division of transient intervals of dynamic response curves of wind farms and online calculation of grid-connected performance, in particular to a method and device for division of wind power transient processes. Background technique [0002] In recent years, with the continuous development of wind power technology and the rapid increase of wind power installed capacity, a grid form with a high proportion of wind power systems has been formed in areas rich in wind resources in my country. Compared with traditional thermal power, the support of wind power is weaker, and the characteristics of grid connection are insufficient. As the proportion of wind power continues to increase, the safety and stability of high-ratio wind power systems are gradually weakening. In order to improve the safety and stability of the wind power system and accurately calculate the grid-connected performance of the wind power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/10
Inventor 李春彦秦世耀李少林贺敬张梅苗凤麟唐建芳朱琼锋张松涛
Owner CHINA ELECTRIC POWER RES INST
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