Automatic testing method and device for variable pitch backup power supply of wind generation set

Abstract

The invention discloses an automatic testing method and an automatic testing device for a variable pitch backup power supply of a wind generation set. The automatic testing device comprises a test requesting module, a safety determining module, an automatic testing module and a test result analyzing module, wherein the test requesting module is used for carrying out comparison between the system time and the data of each set and sending the request of some set needing test when the test is necessary; the safety determining module is used for acquiring data relative to the running safety of the set according to the test request, determining whether the set is in a safety state, if so, sending an automatic testing command, if not, refusing to send the automatic testing command, repeatedly sending the test request after a certain period, and repeating to the safety determining process; the automatic testing module is used for automatically testing after receiving the automatic testing command; and the test result analyzing module is used for carrying out the comparison between the data obtained in the automatic test and the normal value, and determining whether the variable pitch backup power supply is in a normal state. By adopting the method and the device, the automatic test of the variable pitch backup power supplies of the whole wind generation sets in a wind power plant can be realized, the efficiency and the reliability of the variable pitch backup power supplies in test can be improved, and the potential risks of the sets in running can be reduced.

Description

technical field [0001] The invention relates to the field of safety control of wind turbines, in particular to a method and device for automatic testing of a pitch backup power supply of a wind turbine. Background technique [0002] In recent years, with the continuous development of wind power generation, the installed capacity of wind farms has increased year by year, and the proportion of wind power generation has become larger and larger, and it has gradually become a conventional energy source. With the continuous improvement of the installed capacity of wind turbines, the performance requirements of the industry for wind turbines are also getting higher and higher. The pitch system of the wind turbine is one of the core subsystems of the wind turbine. In addition to changing the angle of the blades during normal operation to adjust the efficiency of capturing wind energy, the pitch control system also performs aerodynamic braking on the unit through the huge aerodynam...

AI Technical Summary

Problems solved by technology

[0004] Among the many wind farms currently in operation, some lack the test procedures and methods for the pitch backup power supply, and some put this process in the half-year maintenance, so the test has not been carried out for a long time, which obviously increases the risk of unit operation

However, some wind farms that conduct pitch backup power supply tests are manually tested one by one, or are checked one by one through human intervention on a regular basis, which consumes manpower, has low work efficiency, and often fails to achieve the expected results