Measurement Methods of Accumulated Electric Charges on Spacer in Gas Insulated Switchgear
Measurement Methods of Accumulated Electric Charges on Spacer in Gas Insulated Switchgear
复制标题
DOI：
10.1109/tpwrd.2007.899289
复制
发表时间：
2007-07
影响因子：
4.4
通讯作者：
S. Okabe;A. Kumada
中科院分区：
文献类型：
--
作者：
S. Okabe;A. Kumada
固体绝缘体材料表面的累积电荷现象是交流电力设备和直流设备绝缘设计阶段的关键参数之一。因此，以适当的分辨率掌握绝缘体表面的电荷量非常重要。过去几年，研究人员在这一课题上取得了巨大进展，但报告相当学术性，电力工程师并不总是容易理解和实际应用。本文从测量的基本原理开始，以气体绝缘开关设备（GIS）工程师为主，简单地解释了最新的测量方法。它包括作为信号处理技术的反问题求解、从系统几何、采样频率和噪声的角度进行分辨率评估。此外，还讨论了各种参数对分辨率的影响以及优选的测量系统，例如 500 kV 实际 GIS 间隔器。
The phenomenon of accumulated charges on a solid insulator material surface is one of critical parameters at the insulation design stage for ac electric power equipment as well as dc equipment. Therefore, it is important to grasp charge amounts on an insulator surface with an appropriate resolution. Over the last few years, researchers have made tremendous progress on this subject, but reports are rather academic and not always easy for electric power engineers to understand and apply practically. This paper explains latest measurement methods plainly starting with the basic principle of the measurement, supposing mainly gas insulated switchgear (GIS) engineers. It includes inverse-problem-solving as signal processing technique, resolution evaluation from the standpoint of system geometry, sample frequency, and noise. Further, effects of various parameters on the resolution and also preferable measurement systems for, e.g., 500 kV actual GIS spacers are treated.