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Wind-driven generator group wind-wheel power out-put characteristic analogue testing method

A technology of power output characteristics and wind turbines, which is applied in the field of simulation tests of wind turbine power output characteristics of wind turbines, and can solve problems such as equipment and implementation without wind turbine output characteristics

Inactive Publication Date: 2009-07-22
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are only low-power ordinary dragging power generation systems and simulation software in foreign countries, and there is no equipment for actually simulating the output characteristics of wind turbines and theoretical methods for realization.

Method used

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  • Wind-driven generator group wind-wheel power out-put characteristic analogue testing method
  • Wind-driven generator group wind-wheel power out-put characteristic analogue testing method
  • Wind-driven generator group wind-wheel power out-put characteristic analogue testing method

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Embodiment Construction

[0114] The present invention will be further described below in conjunction with the accompanying drawings.

[0115] When the wind speed is 12m / s, the rotor speed Ω=1680r / min, and the pitch angle β=2 degrees; the fan takes the parameter of 1.0 as an example, the radius R=30.3, the wind rotor speed N=1680 / 78.16=21.5RPM, λ= 2*3.14*NR / W, when the ambient temperature corresponds to an air density of 1.025P:

[0116] 1. Establish a mathematical model of wind

[0117] The wind model established in this example is the basic wind. The basic wind is determined by the Weibull distribution parameters obtained from the wind measurement of the wind farm:

[0118] V ¯ = A · Γ [ 1+ 1 K ]

[0119] In the formula: V——basic wind speed, in m / s; A——scale parameter of Weibull distribution;

[0120] K——shape parameter of Weibull distribution; Г——...

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Abstract

This invention relates to an analog experimental method for a wind wheel power output property of a wind generator set, in which, the experimental device includes a PC, an analog wind wheel and an experiment object motor, the analog wind wheel includes a transducer and an asynchronous motor, the transducer is connected with the PC, the asynchronous motor and the experiment object motor, the two motors are connected. Said method includes setting up a math model of wind, determining a wind wheel power property equation and computing transfer function realized by the PC with a software module.

Description

technical field [0001] The invention belongs to the technical field of wind power generators, in particular to a method for simulating and testing the power output characteristics of wind rotors of wind power generators. technical background [0002] At present, there are more than 30 grid-connected wind turbine manufacturers in China. There is no scientific test method for product quality and design, and it is difficult to produce high-quality wind turbines to compete with foreign wind turbine manufacturers. This restricts the rapid industrialization and commercialization of products, and loses the opportunity to occupy the commanding heights of technology and the market. At present, there are only low-power ordinary dragging power generation systems and simulation software in foreign countries, and there are no equipment and theoretical methods for actually simulating the output characteristics of wind turbines. Contents of the invention [0003] Aiming at the problems ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
Inventor 姚兴佳邓英王湘明邢作霞刘光德
Owner SHENYANG POLYTECHNIC UNIV