单芯交联聚乙烯电缆中半导电层的参数估计方法
Many studies have shown that the semi-conducting layers (SCL) can have significant impacts on high-frequency (HF) wave propagation in power cables. Therefore, knowledge on the characterization of SCL materials is essential to establish the accurate cable model for HF technique application, such as partial discharge (PD) diagnostics, power line communication (PLC) and so on. Unfortunately, the dielectric characteristics of SCL in XLPE cables are usually unknown and hard to measure. Previous works on the characterization of SCL in XLPE cables by Mugala etal have achieved good performance in frequency domain. However, direct measurement on the dielectric properties of SCL is still a trough work, which needs specialized testing platform and making proper samples. What is more, the SCL samples are usually not available especially for an installed cable. To address this issue, based on the T-section circuit model(See Figure 1) proposed in this work, an simulated annealing (SA)-based optimization approach is developed.
单芯交联聚乙烯电缆 半导电层 工艺参数 估计方法
张伟 李洪杰 杨宇琦 刘崇新 黄志伟 薛荣
西安交通大学电力设备电气绝缘国家重点实验室,西安,710049 深圳供电局有限公司,深圳,518000
国内会议
西安
中文
304-305
2013-10-17（万方平台首次上网日期，不代表论文的发表时间）