System For Diagnosis of Degradation Status and Predicting Remaining Useful Life of Rotating Device

摘要

The present invention relates to a diagnosis system for deteriorated state of a rotating body and a system for predicting the remaining useful life of the rotating body, the system comprising: an initial efficiency map operation unit for calculating efficiency in an initial state of the rotating body to obtain an initial efficiency map of the rotating body; An efficiency calculation unit for calculating an efficiency of the rotating body by obtaining an output load with respect to a real time input load of the rotating body; An update efficiency map operator for obtaining an update efficiency map by applying an actual efficiency of the rotating body obtained by the efficiency calculator to the initial efficiency map; An efficiency map modeling unit for modeling the efficiency map for each unit time with respect to the total drive time of the rotating body in the update efficiency map; And a deterioration curve generator for generating an efficiency deterioration curve for the entire drive time of the rotor by applying an equivalent load per unit time to the modeled efficiency map; And a control unit. The efficiency deterioration curve of the rotating body can be converged to approximate the measured value by expanding the initial efficiency and the limited measured data of the rotating body through machine learning or deep running, thereby improving the reliability of the state diagnosis and the remaining effective life prediction have. In addition, the efficiency map for generating the efficiency deterioration curve is layered and modeled by unit time (constant cycle) within the entire drive time of the rotating body, thereby making it possible to diagnose the efficiency map of the rotating body, The accurate deterioration state diagnosis of the rotating body and the remaining useful life prediction can be realized by matching with the efficiency map at a specific point in time. Furthermore, by adopting the concept of an equivalent load (a representative value of the output load that changes with the driving time of the rotating body), the state of the rotating body can be diagnosed under the condition that the load of the speed reducer fluctuates.