在线变压器驱动器中通过面具增强的残余时间卷积网络进行阶段级预火定位
Zhenyu Wang1, Jian Wu1, Tianxiao Cheng1
1National Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China.
The Review of scientific instruments
|March 12, 2026
概括
这项研究引入了一种新的AI网络,以准确诊断线性变压器驱动器 (LTD) 中的气体开关预火故障,即使有噪音或缺少传感器数据. 该方法实现了高精度,为脉冲动力系统的可靠故障检测铺平了道路.
科学领域:
- 电气工程 电气工程
- 人工智能的人工智能
- 脉冲动力系统 脉冲动力系统
背景情况:
- 燃气开关预火是线性变压器驱动器 (LTD) 的常见故障.
- 在大型LTD设施中诊断故障是具有挑战性的,原因是噪音信号,缺失的数据和有限的仪器仪表.
- 现有的方法与不完整和非理想的传感器测量作斗争.
研究的目的:
- 为LTDs开发一个强大的故障诊断方法,能够处理不完整和噪音大的传感器数据.
- 提高大型脉冲动力设施阶段级故障检测的准确性和可靠性.
- 为实时故障诊断提供可扩展和具有成本效益的解决方案.
主要方法:
- 提出了一个面具增强的残余时卷积网络.
- 该网络吸收水传输线 (WTL) 电压和二元通道面罩指示器.
- 训练使用基于物理的12阶段LTD电路模拟,添加高斯噪声进行了训练.
主要成果:
- 在交叉验证过程中获得了98.5%的准确性,并删除了25%的随机通道.
- 在高可靠性 (>0.91) 的原型镜头上展示了100%正确的阶段定位.
- 一个只有三组WTL电压的稀疏传感器变体保持了89.6%的准确性,显示了成本效益.
结论:
- 拟议的面具增强网络为LTD故障诊断提供了一个数据驱动的,有弹性的途径.
- 该方法有效地处理非理想的测量,并可用于未来的脉冲动力设施.
- 显式编码缺失的通道和使用时间卷积提高了诊断的稳定性.
相关概念视频
01:16Types Of Transformers
Transformers can provide desired voltages to a circuit by modifying the number of turns in the secondary windings.
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
If the ratio of the number of turns in the secondary winding to that of the primary winding is greater than one, then the transformer is said to be a step-up transformer. In a step-up transformer, the voltage at the secondary winding is greater than the voltage applied at the primary winding.
However, if this ratio is less than one, the transformer is said to be a step-down...
01:26The Ideal Transformer
In single-phase two-winding transformers, two windings are coiled around a magnetic core characterized by cross-sectional area A and magnetic permeability μ. A phasor current i1 enters the left winding while i2 exits the right winding, establishing the fundamental working of the transformer through electromagnetic principles.
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's tangential component...
Ampere's Law forms the basis of understanding the magnetic field within the transformer. It states that the integral of the magnetic field intensity's tangential component...
01:25Transformers with Off-Nominal Turns Ratios
In scenarios involving parallel transformers with disparate ratings, developing per-unit models requires accommodating off-nominal turns ratios. This situation arises when the selected base voltages are not proportional to the transformer’s voltage ratings. Consider a transformer where the rated voltages are related by the term a. If the chosen voltage bases satisfy a relationship involving term b, term c is defined as the ratio of these bases. This ratio is then substituted into the rated...