Dynamic fault detection method for electro-hydraulic executer energy accumulator

Abstract

The invention discloses a dynamic fault detection method for an electro-hydraulic executer energy accumulator. The dynamic fault detection method comprises the following step that field input signalswhen an intelligent electro-hydraulic executing mechanism is in the work state are collected, and the field input signals include pressure sensor signals, displacement sensor signals, temperature sensor signals, liquid level sensors and motor state signals. The dynamic fault detection method has the beneficial effects that rapid and accurate detection and diagnosis can be conducted on all faults of an EHS intelligent electro-hydraulic executing control system, the automatic control system reliability analysis technology, the fault detection technology and the artificial intelligence knowledgereasoning judgment technology can be comprehensively applied to achieve the fault detection and diagnosis technology only owned by few talented persons originally, a user conveniently knows and graspsthe real-time health condition of the whole system running, and accordingly fault enlarging and disastrous events can be prevented.

Description

technical field [0001] The invention relates to the technical field of electro-hydraulic actuators, in particular to a dynamic fault detection method for accumulators of electro-hydraulic actuators. Background technique [0002] With the continuous improvement of the automation level and the rapid increase of the complexity of the system, users urgently need to improve the reliability and maintainability of the system. The emergence and development of fault detection technology has opened up a new path for improving the reliability and maintainability of the equipment system. New ways, fault diagnosis technology is constantly improving, and the application field is also expanding. [0003] The electro-hydraulic actuator itself is the key and important refining equipment and system. Its operation reliability and maintenance efficiency after failure have a huge impact on the production and operation of the entire equipment and safety risk control. In practical applications, th...

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Problems solved by technology

[0003] The electro-hydraulic actuator itself is the key and important refining equipment and system. Its operation reliability and maintenance efficiency after failure have a huge impact on the production and operation of the entire equipment and safety risk control. In practical applications, there is a lack of corresponding electro-hydraulic actuators. Mechanism fault detection method cannot meet actual production needs