Diagnosis of Rotor and Stator Asymmetries in Wound-Rotor Induction Machines Under Nonstationary Operation Through the Instantaneous Frequency
作者： Francisco Vedreno-Santos , Martin Riera-Guasp , Humberto Henao , Manuel Pineda-Sanchez , Ruben Puche-Panadero
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摘要: This paper proposes a methodology to improve the reliability of diagnosis different types faults in wound-rotor induction generators which work under variable load conditions, as wind turbine applications; method is based on extraction instantaneous frequency (IF) fault-related components stator and rotor currents during speed changes caused by nonstationary functioning. It shown that, these IF versus slip plots fault are straight lines with specific slope y-intercept for each kind fault. In addition, neither patterns dependent machine features or way that changes. The practical this technique introduced diagnosing two anomalies: winding asymmetry asymmetry. approach validated laboratory tests both kinds machines.
sci-hub.se 参考文章(18)
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