Device for testing power grid adaptability of wind generator set

A technology for wind turbines and adaptive testing, which is applied in the direction of motor generator testing, wind power generation, and measurement devices, and can solve the problem that the test parameters of wind turbines are greatly affected, it is difficult to test the complete data of wind turbines, and the initial state of grid voltage Unable to adjust and other problems, to achieve the effect of shortening the experimental cycle, low cost, and small volume
CN101871997AActive Publication Date: 2010-10-27SHENZHEN HOPEWIND ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHENZHEN HOPEWIND ELECTRIC CO LTD
Publication Date
2010-10-27

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Abstract

The invention relates to a device for testing power grid adaptability of a wind generator set, which comprises a converter built based on a power semiconductor switch device, wherein the input end of the converter is connected with a three-phase power supply and the output end thereof is connected with the wind generator set. Due to the adoption of the converter built based on the power semiconductor switch device, the device for testing the power grid adaptability of the wind generator set has the advantages of high power density, small volume, low cost and capabilities of bearing a majority of dynamic impacts caused by the wind generator set in the fault experiment process of the power grid to reduce the requirement of an experiment system on the capacity of the power grid, realizing the stepless regulation of voltage and frequency to conveniently and flexibly simulate various power grid faults, extend the test range, enrich test data and reduce the experiment period; and simulating various initial states of the power grid voltage prior to the power grid fault test to completely test the fault data of the wind generator set in various states of the power grid.
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Description

technical field

[0001] The present invention relates to a test device, more specifically, to a test device for testing the grid adaptability of a wind power generating set. Background technique

[0002] With the rapid development of the wind power industry and the increasing proportion of wind power installed capacity in the national power structure, more and more countries have put forward strict requirements on the grid connection conditions and grid adaptability of grid-connected wind turbines. These include the adaptation of wind turbines to grid voltage and frequency deviations and fluctuations, and low voltage ride through performance (Low Voltage Ride Through, LVRT for short). The low-voltage ride-through performance refers to the ability of the wind turbine to maintain uninterrupted grid-connected operation after the connected grid fails and the voltage of the wind farm drops, so as to avoid the removal of the wind farm from seriously affecting the operation stabilit...

Claims

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