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部分电放电的定位使用压力球形频率差束成型.

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概括
此摘要是机器生成的。

这项研究通过声学传感器和先进的光束成形来增强部分电放电局部化. 新方法通过解决近场挑战和波偏差来提高高压系统的精度.

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科学领域:

  • 电气工程 电气工程
  • 声学 声学 在声学方面
  • 信号处理 信号处理

背景情况:

  • 准确地定位部分电放电 (PD) 对于诊断高压系统至关重要.
  • 在PD事件期间的超声波声音发射需要复杂的定位技术,以避免空间别名.
  • 现有的压缩频差光束成形方法显示出希望,但需要扩展近场应用.

研究的目的:

  • 开发一种改进的方法,用于准确地近场定位部分电放电.
  • 为了适应压缩频差束成型用于球形波分析.
  • 通过减轻来自非平面波的偏差来提高定位精度.

主要方法:

  • 使用了声学传感器阵列和扩展的压缩频率差束成形方法.
  • 包含用于近场场景的球形波分析.
  • 实施了两步规范化过程,以标准化场变量并保持相位/相对振幅.
  • 采用基于交替方向乘法方法的分布式算法来进行凸面优化.

主要成果:

  • 拟议的方法成功地扩展了部分电放电的近场定位能力.
  • 两步规范化有效消除来自非平面波的偏差.
  • 分布式优化算法有效地解决了复杂的问题.
  • 使用模拟和实验数据实现了验证.

结论:

  • 增强的光束成形技术提供了部分电放电的准确近场定位.
  • 这一进步对于改善高压设备的诊断和维护至关重要.
  • 该方法为复杂环境中具有挑战性的声学定位问题提供了强大的解决方案.