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首页> 外文期刊>IEEE Transactions on Energy Conversion >Detection of Field Winding Faults in Synchronous Motors via Analysis of Transient Stray Fluxes and Currents
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Detection of Field Winding Faults in Synchronous Motors via Analysis of Transient Stray Fluxes and Currents

机译：通过分析瞬态杂散磁通和电流在同步电机中检测现场绕组故障

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摘要

The detection of rotor failures in synchronous motors is a matter of primordial interest in many industrial sites where these machines are critical assets. However, due to the particular operation of these motors, most conventional techniques relying on steady-state analysis, commonly used in other electric machines, are not applicable to such motors. In this context, it has been recently proven that the analysis of different quantities under transient operation of the motor and, more specifically, under motor starting can provide crucial information for the diagnosis of many faults. This work proposes the time-frequency analysis of stray fluxes and currents to detect field winding faults in synchronous motors. The potential consequences of this fault can be catastrophic for the motor integrity, so that the detection of its presence in its early stages can be of critical importance for the industry. The results included in this paper prove the usefulness of the transient analysis of such non-invasive quantities not only to detect the presence of the field winding fault but also to set a starting point to determine its severity.
机译：在同步电动机中检测转子故障是许多工业站点的原始兴趣的问题，这些工业站点是这些机器是关键资产的问题。然而，由于这些电动机的特定操作，大多数常规技术依赖于稳态分析，通常用于其他电机，不适用于这种电动机。在这种情况下，最近经过证明，在电机的瞬态操作下对不同量的分析，更具体地，在电机启动下可以为许多故障的诊断提供关键信息。这项工作提出了杂散磁通和电流的时频分析，以检测同步电动机中的现场绕组故障。这种故障的潜在后果可能是对机动完整性的灾难性的，因此在其早期阶段的存在检测可能对该行业至关重要。本文中包括的结果证明了这种非侵入量的瞬态分析的有用性，不仅要检测现场绕组故障的存在，而且还要设定起点以确定其严重程度。

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