Weak fault signal identification method and system of hydraulic intelligent system

By monitoring the physical parameters of hydraulic oil in real time and using variation point detection algorithms and big data analysis technology, we can identify weak fault signals and generate maintenance suggestions, and solve the problem that existing hydraulic system fault diagnosis methods are difficult to capture weak fault signals, achieving higher fault diagnosis accuracy and timeliness, ensuring the stable operation of the equipment and the improvement of production efficiency.

CN119914592APending Publication Date: 2025-05-02GUIZHOU WUJIANG HYDROPOWER DEV
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Patent Information

Application Number
CN202411725709.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-05-02

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Abstract

The invention discloses a weak fault signal identification method and system for a hydraulic intelligent system, and belongs to the technical field of hydraulic intelligent systems and fault diagnos.The method comprises the steps that an online monitoring system for hydraulic oil physical property changes is started, and physical parameters of hydraulic oil are sent to an analysis platform regularly; the analysis platform analyzes the physical property change of the hydraulic oil in different working states, periodically analyzes the change trend of each parameter, identifies the deviation from the normal operation state, judges the health state of the hydraulic system in real time, compares historical data and generates a weak fault signal; and when a weak fault signal is identified, the analysis platform generates a corresponding maintenance suggestion to ensure that the hydraulic oil is always in an optimal state. Early diagnosis and precise maintenance of hydraulic system faults are achieved, fault detection sensitivity and maintenance efficiency are improved, fault expansion is effectively prevented, stable operation of the system is guaranteed, the service life of equipment is prolonged, maintenance cost is reduced, and the method has great significance in improvement of production efficiency and safe production.
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