摘要
国外电力线信道模型参数不适配于我国工程环境。实验测试了室内常用的截面积为2.5mm2硬铜线在1~30 MHz频带内的信道特性。固定频率时,考察导线长度变化对信道特性影响;固定长度时,考察频率变化对信道特性的影响。此外还观测了PVC材料、导线间距和导线距地面高度对信道特性的影响。根据实测数据,计算出了适用于我国环境的信道模型参数。通过与实测数据对比验证了仿真方法与所得参数的正确性。
Considering that foreign power line channel model parameters are not fit for engineering environment in our country, the channel characteristic of indoor commonly used cross-sectional area 2.5 mmz hard wire in 1-30 MHz was studied in this paper, including channel characteristic change as the wire length changes when frequency is fixed and the channel characteristic changes with frequency changes when length is fixed. Also the influence of PVC material, spacing between power lines and height from the ground to the power line to the channel characteristic is observed. The channel model parameters suitable for our country environment are calculated according to the measured data. The simulation results verifies the validity of the simulation method and parameters by comparing the measured data.
出处
《大连工业大学学报》
CAS
北大核心
2015年第2期144-149,共6页
Journal of Dalian Polytechnic University
关键词
电力线通信
低压电网信道
衰落特性
信道模型
power line communications
low voltage power grid channel
fading characteristics
chan-nel model
