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Updated: Jul 10, 2025

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
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基于模型的转移学习方法用于检测PMSM中的互转短路故障

Mingsheng Wang1, Qiang Song1, Wuxuan Lai1

  • 1National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology (BIT), Beijing 100081, China.

Sensors (Basel, Switzerland)
|November 25, 2023
PubMed
概括

在永磁同步电机 (PMSM) 中早期检测间转短路 (ITSC) 故障至关重要. 本研究介绍了一种基于模型的新型转移学习方法,用于准确的ITSC故障检测,其性能优于现有的方法.

关键词:
贝叶斯的优化是贝叶斯的优化.卷积神经网络 (CNN) 是一种神经网络.错误诊断 错误诊断 错误诊断 是一个问题.间转短路 (ITSC) 故障故障短路永久磁铁同步电机 (PMSM) 的使用转移学习转移学习

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Power System Three-Phase Short Circuits01:21

Power System Three-Phase Short Circuits

Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
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Three-Phase Short Circuit—Unloaded Synchronous Machine01:21

Three-Phase Short Circuit—Unloaded Synchronous Machine

Conducting a three-phase short circuit test on an unloaded synchronous machine helps understand its impact on the system. The AC fault current's oscillogram, with the DC offset removed, reveals that the waveform amplitude decreases from an initially high value to a steady-state level for one phase of the machine.
This behavior occurs due to the magnetic flux produced by the short-circuit armature currents. Initially, these currents follow high-reluctance paths but eventually shift to...
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Bus Impedance Matrix01:24

Bus Impedance Matrix

Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits.
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Multimachine Stability01:25

Multimachine Stability

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Series R—L Circuit Transients01:22

Series R—L Circuit Transients

In a series resistor-inductor (R-L) circuit, closing the switch at the start of the time period simulates a three-phase short circuit, a fault condition where all three phases of an unloaded synchronous machine are short-circuited. When there is no fault impedance and no initial current, the initial voltage is determined by the phase angle of the source voltage.
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Simplified Synchronous Machine Model

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