Analysis and Classification of Faults in Switched Reluctance Motors Using Deep Learning Neural Networks

摘要

The simple and robust construction, less weight, wide operating speed range, and higher fault tolerance capability of switchedreluctance (SR) motor make it a viable contender for the conventional dc and ac machines. The faults at the rotor, winding,stator converters, and sensors lead to overcurrent, increase torque ripples, and sudden breakdown of the system. Thus, it isan urgent requirement to recognize and classify the faults that exist in switched reluctance motors, thereby the reliability,robustness, and widespread utilization of SR motors can be increased. The phases of the SR Motor are excited by using anasymmetric bridgeless resonance converter. This paper proposes an automatic diagnosis and classification of faults using radialbasis function neural network (RBFNN). A mathematical model of the SR motor is established to determine the state of theart of fault condition of SR motors. The speed data of SR motor are utilized by RBFNN to generate fault information. Gaborfilter is used for preprocessing the input data, and segmentation is achieved using high accurate DCT-DOST transformation. Agray-level co-occurrence matrix optimized with a genetic algorithm is used to extract the features in the speed signal of themotor. A test setup was developed in MATLAB to measure the performances of the RBFNN classifier in real-time. Theeffectiveness of the simulated fault classification model is verified by comparing the results of the conventional PI controllerwith several optimized algorithm-based tuned PI controllers.