Hilbert-Huang Transform and machine learning based electromechanical analysis of induction machine under power quality disturbances

Abstract

Monitoring and predicting Power Quality (PQ) is crucial for quickly minimizing risk, protecting induction machines (IMs), and increasing productivity. This paper proposes an electromechanical analytical framework for IM working with various PQ disturbances based on machine learning (ML). This work collects the motor characteristics and PQ data, motor vibration signals, and other sensor data to identify the failures. The complicated electromechanical data is broken down into intrinsic mode functions (IMFs) using the Hilbert-Huang Transform (HHT), which reveals the modes present in the signals. This frequency-domain data is retrieved, paired with time-domain characteristics, and used as input features for ML algorithms. Support Vector Machines (SVMs) trained on labeled datasets in which features extracted from PQ disturbances are used to categorize the disturbances into several groups. The PQ disturbances caused by voltage sags, swells, harmonics, and transients can all be efficiently classified using SVM classifiers, allowing for real-time determination of the kind of disturbance influencing the IM. The accuracy for the SVM in the proposed scheme is 97.2 %. The SVM method is trained with PQ data and classification results using MATLAB classifier and Python software. • A novel approach is provided for monitoring and forecasting Power Quality disturbances in induction machines (IMs) using machine learning (ML) techniques. • The Hilbert-Huang Transform (HHT) decomposes complex electromechanical data into intrinsic mode functions (IMFs). • Support Vector Machines are trained on labeled datasets to classify various PQ disturbances. • The SVM classifier yields an outstanding 97.2 % accuracy rate, allowing for real-time detection of the sort of disturbance impacting the IM.

Topics & Concepts