摘要
低压电力线载波通信已经成为智能电网建设中重要的本地通信手段,但低压电力线通信环境恶劣,影响通信性能,因此必须测量并掌握低压电力线的信道特征。本文针对低压电力线窄带载波通信应用于电力集抄系统的现状,给出了现场测量阻抗和衰减特性所采用的方法,并对有代表性的台区进行了现场测量,分析总结了测量得到的不同类型低压电力线信道在80～500kHz频段内的阻抗和衰减特性,可为低压电力线载波通信现场环境的研究提供参考。
Low-voltage power line carrier communication（LV-PLC）has become an important mean of local communication in the undergoing China＇s smart grids.But the poor environment on the low voltage power line has a bad effect on the performances of LV-PLC,measuring and understanding of the power line channel characteristics become vital.In view of the existing situation of the narrow-band LV-PLC widely being used in the remote power-meter reading system,the paper provides field measurement methods of the impedance and attenuation characteristics,and implements a field measurement on the selection of some typical distribution networks,then compares and summarizes impedance and attenuation characteristics measured in the frequency range of 80～500 kHz.A practical reference is provided for the study of real environments of the LV-PLC in this paper.
出处
《电测与仪表》
北大核心
2011年第7期90-96,共7页
Electrical Measurement & Instrumentation
关键词
低压电力线载波通信
测量
阻抗特性
衰减特性
low-voltage power line carrier communication
measurement
impedance characteristic
attenuation characteristic
