Online test system, device and method of wind power generation equipment

A technology for wind power generation and on-line testing, which is used in motor generator testing, measuring devices, measuring electricity, etc., and can solve the problem of not realizing the output current of wind power generation equipment and the output detection signal of wind power generation equipment.

Active Publication Date: 2013-04-10
维谛新能源有限公司
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the prior art, the online detection of the wind power generation equipment during the normal power supply process of the wind power generation equipment to the public power grid has not been realized, and

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  • Online test system, device and method of wind power generation equipment
  • Online test system, device and method of wind power generation equipment
  • Online test system, device and method of wind power generation equipment

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] Such as figure 1 As shown, in the online testing system of the wind energy generating equipment of the present invention, its main three main parts, namely the public grid 2, the wind energy generating equipment 3, and the online testing system connected between the public grid 2 and the wind energy generating equipment 3 The testing device 1 ; when the system is working, the power supply generated by the wind energy generating equipment 3 during operation is output to the public power grid 2 through the online testing device 1 . In addition, in order to test the performance of the wind ene...

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Abstract

The invention relates to an online test system, a device and a method of wind power generation equipment. The online test system comprises a public supply network, wind power generation equipment and an online test device, wherein the online test device comprises a plurality of doubly-fed pulse-width modulation (PWM) converters connected in a parallel mode, one of the plurality of doubly-fed PWM converters is a host device, the others of the plurality of doubly-fed PWM converters are slave devices, the host device regulates output current of each slave device in real time to achieve current-sharing control and controls every slave device within every preset adjustment step length in the process of outputting abnormal work signal to the wind power generation equipment. According to the online test system, the device and the method of the wind power generation equipment, the wind power generation equipment can online test properties of the wind power generation equipment in the process of providing normal power supply to the public supply network. Besides, current output from the wind power generation equipment to the public supply network on the same circuit, inputting of abnormal work signal to the wind power generation equipment and test to the wind power generation equipment can be realized.

Description

technical field [0001] The present invention relates to an online testing system, and more specifically, relates to an online testing system, device and method for wind energy generating equipment. Background technique [0002] During the operation of the power grid, there will be faults such as transient high voltage of the power grid, short circuit of the power grid to ground, and large harmonic content. Due to its own capacity limitation, it is easy to disconnect from the grid and cannot continue to generate electricity. As the capacity of wind power generation equipment increases, this problem becomes more and more obvious. Due to the huge actual capacity of the power grid, it is very difficult for wind power generators to carry out the above-mentioned power grid failure experiment verification on the prototype during the development stage. Many manufacturers adopt the method of on-site trial, but the power grid failure is very random, and the on-site trial often takes ...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/34
Inventor 赵岷杜云涛
Owner 维谛新能源有限公司
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