Direct drive wind turbine simulation test bench and condition monitoring device
A technology of condition monitoring device and wind turbine, which is applied in the direction of motor generator test, measurement device, engine test, etc., can solve the problems of difficulty in determining the degree of failure, lack of effective tracking and feedback of actual failure, lack of excitation load of unit, etc. achieve compact structure
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[0019] The present invention provides a direct-drive wind power generator simulation test bench and a state monitoring device. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] (1) Some kind of fault is man-made on the main bearing of the generator. In this case, it is the burn of the cage. Since the test bench is a modular structure, it is easy to disassemble. The normal bearing and the faulty bearing of the cage are respectively installed on the test platform for testing;
[0021] (2) Acquisition of acceleration vibration signals for analysis, figure 2 The left a is the acceleration signal in the normal state, figure 2 Left b is the acceleration signal when the cage is burned;
[0022] (3) Process the original acceleration signal, such as figure 2 Shown on the right is the corresponding cepstrum signal ( figure 2 The right a is the cepstrum of the normal signal, figure 2 Right b is ...
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