Research on Inverter Fault Detection and Diagnosis

Abstract:

Power semiconductor devices and its control circuit in inverter of motor speed regulation system is the weak link most likely occurs fault. Fault feature extraction is the key to fault diagnosis.Regarding inverter’s output voltage signal as the characteristic parameters,extracting inverter’s voltage spectrum by using improved windowed STFT,fault detection and diagnosis can be achieved.Simulation results demonstrate the effectiveness of this method

• Periodical: Advanced Materials Research (Volumes 424-425)
• Pages: 746-750
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.424-425.746
• Online since: January 2012
• Authors: Qiao Ling Yang, Hai Ping Zhang, Juan Juan Cheng
• Keywords: Fault, Fault Characteristics, Fault Detection, Inverter, Power Semiconductor Device, Voltage Spectrum

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