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可靠性与测试 故障诊断 可靠性分析 有限元仿真 ★ 3.0

基于嵌套环转子槽谐波的无刷双馈感应电机定子短路故障检测与定位方法

Stator Short-Circuit Fault Detection and Location Methods for Brushless DFIMs Using Nested-Loop Rotor Slot Harmonics

语言:

中文摘要

本文提出了一种针对无刷双馈感应电机(BDFIM)定子绕组匝间短路(ITSC)的故障检测与定位方法。ITSC是电机早期故障,若不及时处理可能引发更严重的线圈间或对地故障。该方法通过分析嵌套环转子槽谐波特征,实现了对故障的精准识别,对于提升电机系统运行可靠性具有重要意义。

English Abstract

This article proposes and demonstrates a fault-detection method to locate interturn short circuits (ITSCs) in the stator windings of a brushless doubly fed induction machine (BDFIM). The detection of ITSC is important in machine health prognostics as ITSC is an early stage fault that may lead to other faults such as coil-to-coil and coil-to-ground. BDFIM consists of power and control windings in t...
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SunView 深度解读

该技术主要针对无刷双馈电机(BDFIM)的故障诊断,虽然阳光电源目前的核心业务集中在光伏逆变器、储能PCS及风电变流器,但该研究中涉及的“故障早期诊断”与“系统可靠性监测”理念与阳光电源的iSolarCloud智能运维平台高度契合。随着阳光电源在风电变流器及大型储能系统旋转设备领域的深入,此类基于谐波分析的故障预测技术可作为未来提升设备全生命周期管理、降低运维成本的技术储备,有助于增强产品在复杂工况下的可靠性。