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首页> 外文会议>Annual Conference of the IEEE Industrial Electronics Society >Modeling eccentricity faults with axial asymmetry in three-phase induction motors
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Modeling eccentricity faults with axial asymmetry in three-phase induction motors

机译：三相异步电动机中具有轴向不对称性的偏心故障建模

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摘要

Squirrel cage induction motors (SCIMs) have gained critical roles in many industries. Most mechanical faults cause eccentricity within the SCIMs, so, it is important to develop reliable eccentricity fault diagnosis systems. Modeling and simulation of the eccentricity faults can help to reach this aim. This paper proposes modeling and simulation of the eccentricity faults with variable degrees along the axial length of the induction motor. Multiple coupled circuits model with 2-D modified winding function theory are used for this purpose. Simulation results show that having the same risk of rubbing the stator by the rotor, the axially asymmetric eccentricity (inclined eccentricity) creates lower fault indices, so, considering the higher occurrence probability as well, it is reasonable to design the fault diagnosis systems based on the inclined eccentricities.
机译：鼠笼式感应电动机（SCIM）在许多行业中都起着至关重要的作用。大多数机械故障都会导致SCIM内部发生偏心，因此，开发可靠的偏心故障诊断系统非常重要。偏心断层的建模和仿真可以帮助实现这一目标。本文提出了沿感应电动机的轴向长度变化程度的偏心故障的建模和仿真。为此，使用具有二维修正绕组函数理论的多重耦合电路模型。仿真结果表明，与转子摩擦定子的风险相同，轴向不对称偏心率（倾斜偏心率）产生的故障指数较低，因此，考虑到较高的发生概率，设计基于故障诊断系统的系统是合理的。倾斜的偏心率。

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