Device for wind turbine generator set over-speed protection testing

Abstract

The invention relates to a device for wind turbine generator set over-speed protection testing. According to the technical schemes of the invention, the rotating shaft of a servo motor is vertically arranged upwards; the upper end of the rotating shaft is equipped with a driving shaft through a coupling, wherein the rotating shaft and the driving shaft are coaxially arranged; the upper end of thedriving shaft is connected with a horizontally-arranged turntable; a plurality of detecting holes which are through in a vertical direction are uniformly distributed at the outer periphery of the turntable; a first telescopic rod which is vertically disposed and is located below the turntable is arranged on a base at one side of the servo motor; the upper end of the first telescopic rod is provided with a second telescopic rod which extends horizontally outwards in a direction parallel to the radial direction of the turntable; the outer end portion of the second telescopic rod is provided with a fixing seat for mounting a rotation speed sensor; and the rotation speed sensor is vertically fixed on the fixing seat. With the device of the invention adopted, a problem that the test loop of acurrent over-speed protection test method is incomplete can be solved. The test device can be adjusted according to different sensors, and therefore, the device has the advantages of more accurate detection, convenient use, good effect, high safety and high reliability.

Description

technical field [0001] The invention relates to a device for overspeed protection testing of a wind power generating set. Background technique [0002] The overspeed protection function of wind turbines is an important guarantee to ensure the safe operation of wind turbines. At present, all wind farms regularly (half a year or a year) test the overspeed protection function of wind turbines to ensure that the function is normal. The current test method is mainly to use the signal generator to simulate signal input or lower the protection setting value, and restore it after the test. Among the two test methods, the former only detects the logic elements and executive elements of the protection circuit, but does not detect the detection element (rotational speed sensor) of the protection circuit, and has the defect that only the signal test is used instead of the overall circuit test; the latter can only It shows that the protection circuit functions normally at the modified s...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a device for the overspeed protection test of the wind power generating set, which can effectively solve the problem of the overspeed protection testing of the wind power generating set

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