A method for on-line monitoring and predictive maintenance of mechanical life of a voltage regulator

Abstract

The application discloses a kind of voltage regulator mechanical life online monitoring and predictive maintenance method, the whole process closed loop system of data layer, model layer, optimization layer and maintenance layer is constructed in this method.First, the original sensor data is dynamically calibrated by data layer to multiple factors.Second, the life prediction model is pre-trained by virtual data and fine-tuned by measured data in model layer, and the remaining life prediction value, fault risk level and sensitivity ranking of calibration coefficient are output based on calibrated data.The optimization layer performs bidirectional feedback optimization: optimize calibration coefficient based on prediction error and feedback to data layer;based on sensitivity ranking, optimize multi-physical field simulation parameters, generate supplementary virtual data to update the model.Finally, the maintenance layer generates and executes differentiated maintenance strategies in combination with real-time load data and prediction results, and feeds back the data after maintenance to the data layer, forming a prediction-maintenance closed loop.The application realizes the accurate prediction and active maintenance of voltage regulator life.

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