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Development of Measuring System of Space Charge Distribution in Submarine Power Cable and Editing its Text

海底电缆空间电荷分布测量系统的研制及正文编辑

基本信息

批准号：
05045035
负责人：
TAKADA Tatsuo
金额：
$ 2.88万
依托单位：
Musashi Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05045035/
关键词：
space charge dc electrical insulation submarine power cable

项目摘要

One of the main problems for developing the dc polymeric power cabel is the accumulation of space charge in the dielectric, which gives a obvious distortion of the applied electric field and may causes dielectric breakdown. Thererfore, it is nessesary to carry out the measurement of the space charge distribution in the power cable directly, i.e., where and how many the space charge accumulated in the dielectric. During the last ten years or so, we have been making great progress in measurement and under standing the space charge behavior in sheet polyethylene used in dc power cable. As the next step of the further study, our purpose is to develop the PEA method probing the space charge profile in coaxial polymeric crossed-linked polyethylene cable. The main achivements of this research are shown as follows :(1) The measurements of space charge distribution in coaxial polymeric power cables(2) The measurement and analysis of attenuation and dispersion of pulsed acoustic wave.(3) The study of the space charge formation at interfaces of dielectric.(4) Editing a textbook for the space charge measurement in Einglish, Chinese and Korea.The contents of the textbook include the fundamental principle of the space charge measurement, the data estimation and processing of the attenuation and dispersion of acoustic wave, and the cabiration of the space charge density. For the purpose of developing the pulsed electroacoustic (PEA) method, we translated the textbook into three other languages, English, Chinses and Korea, which has been widely used as a manual for the relative reaserch scientists in the world wide.Nowadays, the PEA method has enjoyed considerable interest globally, and many scholars from inside Japan and abroad came to our laboratory to learn the principle of the PEA method. We have appreciated the opportunity to teach them, and to help them develop their own experimental systems.

发展直流聚合物电力电缆的主要问题之一是电介质中空间电荷的积累，这会使外加电场产生明显的畸变，并可能导致电介质击穿。因此，有必要直接对电力电缆中的空间电荷分布进行测量，即电介质中空间电荷积聚在何处，积聚了多少。在过去十年左右的时间里，我们在测量和理解用于直流电力电缆的聚乙烯片的空间电荷行为方面取得了很大进展。作为进一步研究的下一步，我们的目的是发展PEA方法探测同轴聚合物交联聚乙烯电缆的空间电荷分布。本文的主要研究成果如下：(1)同轴聚合物电力电缆中空间电荷分布的测量；(2)脉冲声波衰减与色散的测量与分析。(3)介电介质界面空间电荷形成的研究。(4)编写中、英、韩三种语言的空间电荷测量教材。教材内容包括空间电荷测量的基本原理、声波衰减与色散的数据估计与处理、空间电荷密度的计算等。为了发展脉冲电声（PEA）方法，我们将教材翻译成英、中、韩三种语言，在世界范围内作为相关研究人员的手册被广泛使用。如今，PEA方法在全球范围内引起了相当大的兴趣，许多日本国内外的学者来到我们的实验室学习PEA方法的原理。我们很高兴有机会教他们，并帮助他们开发自己的实验系统。