Hydropower station equipment fault diagnosis method
A technology for equipment failure and diagnosis methods, applied in design optimization/simulation, instruments, calculation models, etc., can solve problems such as accurate diagnosis of equipment failures in hydropower stations, and achieve the effect of solving inaccurate model construction, ensuring accuracy, and high reference value
Pending Publication Date: 2022-04-01
HUANENG LANCANG RIVER HYDROPOWER +1
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem of accurate diagnosis of hydropower station equipment faults, and propose a method for diagnosis of hydropower station equipment faults
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[0032] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0033] Such as figure 1 As shown, the present invention provides a method for diagnosing faults of hydropower station equipment, comprising the following steps:
[0034] S1: Use the sensors of the hydropower station monitoring system to collect the basic monitoring data of the hydropower station equipment, and eliminate the basic monitoring data to obtain effective monitoring data;
[0035] S2: Build a fault diagnosis model for hydropower station equipment;
[0036] S3: Input the effective monitoring data into the fault diagnosis model for analysis, and obtain the equipment fault diagnosis result.
[0037] In the embodiment of the present invention, step S1 includes the following sub-steps:
[0038] S11: Use the sensors of the hydropower station monitoring system to collect preliminary monitoring data of hydropower station equipment, form a monitoring...
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The invention discloses a hydropower station equipment fault diagnosis method which comprises the following steps: S1, acquiring basic monitoring data of hydropower station equipment by using a sensor of a hydropower station monitoring system, and rejecting the basic monitoring data to obtain effective monitoring data; s2, constructing a fault diagnosis model of the hydropower station equipment; and S3, inputting the effective monitoring data into the fault diagnosis model for analysis to obtain an equipment fault diagnosis result. According to the fault diagnosis method, the fault diagnosis model is used for performing result analysis on the hydropower station equipment, so that the problems of relatively heavy expert experience supervisory factors and inaccurate model construction can be solved, and the accuracy of the established model and the actual application capability of the model are ensured through model scoring and fault node screening; and a relatively high reference value is provided for maintenance of hydropower station managers.
Description
technical field [0001] The invention belongs to the technical field of hydropower station monitoring, and in particular relates to a fault diagnosis method for hydropower station equipment. Background technique [0002] In the daily operation of hydropower units, there are usually a large number of fault signals, most of which are caused by hydraulic, electrical and mechanical factors. In the existing techniques for diagnosing equipment faults in hydropower stations, some rely on expert experience for manual diagnosis, some are based on signal processing, and some are based on model building. In the actual manual diagnosis, it is often necessary to combine the opinions of multiple experts to judge, and the process is relatively subjective and prone to disagreement. In the methods based on signal processing, short-time Fourier transform, wavelet transform, and empirical mode decomposition were often used in the past, but short-time Fourier transform cannot adapt to the trans...
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IPC IPC(8): G06F30/27G06N7/00G06Q10/00G06Q50/06
CPCY04S10/50
Inventor 孙卫张捷李正凡杨春霞桂晶张子皿周平华郗发刚尚鋆蔚
Owner HUANENG LANCANG RIVER HYDROPOWER