利用多径模型对中压电力线传输特性建模

Transmission characteristics modeling for medium-voltage power line using multipath model

应用多径模型对中压电力线信道进行建模可以归纳为一个无约束最优化问题。文中通过合理设置初始参量,运用Matlab工具,发现中压电力线信道的幅频特性可用少于15径的多径模型进行较为精确的描述。这个结果有利于未来在系统设计和性能评估中采用多径模型进行信道模拟与分析。文中还给出了1-30MHz频率范围内中压电力线信道上的实测幅频特性与多径模型最小均方拟合结果的比较。

This paper applies the well-established multipath model to simulate the Medium-Voltage （MV） power line transmission channel. With appropriate initial parameters, it is seen that the power cable attenuation can be well characterized by this multipath model with typically less than 15 paths at the relatively small discrepancy when using Matlab tool. Result demonstrates the satisfactory agreement between the actual measurements on MV channel and theoretical modeling with the least-square error criterion within the frequency range of 1 - 30 MHz.