一种双终端故障定位方法,用于在线性变压器驱动器中的气体开关预点火
Zhenbo Wan1, Weidong Ding1, Fengju Sun2
1State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China.
The Review of scientific instruments
|January 24, 2024
概括
一种新的双终端方法可以准确地检测大型线性变压器驱动器 (LTD) 中故障的气体开关. 该技术使用B点传感器和时间延迟分析,提高了这些高功率设备的运行效率.
科学领域:
- 高功率脉冲动力系统高功率脉冲动力系统
- 电气工程 电气工程 电气工程
- 血物理学的等离子体物理学
背景情况:
- 大型线性变压器驱动器 (LTD) 使用许多高功率气体开关.
- 开关预火是LTD中常见且具有破坏性的操作故障.
- 高效准确的故障检测对于LTD的可靠性和性能至关重要.
研究的目的:
- 开发和验证一套新的双终端故障定位方法,用于有限公司的气体开关.
- 为了比较到达时间 (TOA) 和时间逆转 (TR) 故障定位技术的有效性.
- 提高LTD调试,运营和维护的运营效率.
主要方法:
- 在气体开关外上集成B点传感器,以捕获放电信号.
- 通过相同长度的电缆平行连接B点传感器进行信号传输.
- 应用和比较到达时间 (TOA) 与能量和相位标准,以及用于故障定位的时间逆转 (TR) 方法.
- 在单阶段的LTD模块上验证TR方法.
主要成果:
- 拟议的双终端方法可以准确检测和定位故障开关.
- 时间逆转 (TR) 方法,由精确的模拟模型支持,证明了高位置精度.
- TOA方法的准确性对信号与噪声比率 (能量标准) 很敏感,或者需要准确的延迟估计 (相位标准).
- 理论讨论涵盖了双开关前火灾事件的定位方法.
结论:
- 开发的双终端故障定位方法为识别Ltd气体开关的火灾前故障提供了有效的解决方案.
- 与基于TOA的方法相比,时间逆转 (TR) 方法在故障定位方面显示出更高的精度.
- 预计这种技术将大大提高大型LTD设备的调试,运行和维护的效率.
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