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Method and device for obtaining power curve of wind-driven generator

A technology for wind power generators and acquisition methods, which is applied in the monitoring of wind power generators, wind power generators, engines, etc., and can solve problems such as errors

Active Publication Date: 2019-05-14
CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Therefore, these factors will cause large errors

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  • Method and device for obtaining power curve of wind-driven generator
  • Method and device for obtaining power curve of wind-driven generator
  • Method and device for obtaining power curve of wind-driven generator

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Embodiment Construction

[0041] The core of the present application is to provide a high-precision, high-reliability method and device for obtaining a wind power generator power curve.

[0042] In order to describe the technical solutions in the embodiments of the present application more clearly and completely, the technical solutions in the embodiments of the present application will be introduced below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0043] Please refer to figure 1 , figure 1 It is a flow chart of a method for obtaining a wind power generator power curve provided in the embodiment of the present application, which mainly includes the follow...

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Abstract

The invention discloses a method for obtaining a power curve of a wind-driven generator. The method comprises the following steps that observation data during operation of the wind-driven generator are obtained, wherein the observation data comprise observation data of wind speed and observation data of output power; the observation data are substituted into a pre-established state space equationof a wind-driven generator model; first-order linearization is performed on the state space equation; and Kalman filtering is performed on the linearized state space equation, denoising data of the observation data are generated so that the power curve can be conveniently generated according to the denoising data. According to the method, the actual observation data serve as a basis, on the basisof the state space equation established by the wind-driven generator mechanism model, the optimal estimation is performed on the observation data by adopting Kalman filtering so that the precision andthe reliability can be effectively improved. The invention further discloses a device for obtaining the power curve of the wind-driven generator. The device also has the beneficial effects.

Description

technical field [0001] The present application relates to the technical field of wind power generation, and in particular to a method and device for obtaining a power curve of a wind power generator. Background technique [0002] With the rapid development and progress of wind power technology in recent years, wind power has played an important role in my country's power system. Wind turbine power curve is an important characteristic of wind turbines, which describes the relationship between the output power of wind turbines and wind speed, and is an important indicator for evaluating the performance and power generation capacity of wind turbines. [0003] In the prior art, methods for obtaining power curves of wind power generators generally fall into two categories. One of them is to rely on mathematical statistical methods to obtain the power curve by means of data fitting and other methods to the observed data obtained during the operation of the wind turbine. However,...

Claims

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Application Information

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IPC IPC(8): F03D17/00
Inventor 唐娟刘瑾刘楠杨东海张波李素红刘杰李建立魏立廖雪松
Owner CSIC CHONGQING HAIZHUANG WINDPOWER EQUIP
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