基于AMI测量参数的电力线通信组网技术

Power line communication networking technology based on AMI measurement parameters

针对电力线通信信号强度和时延指标无法准确测量,且网络建立过程中缺少路径权值和方向的问题,文章提出了基于AMI测量参数的路径指标间接测量方法。从AMI系统的智能电能表和集中器获取线路电压、电流、相位等测量参数,并以台区负荷中心的测量值为参考,利用基尔霍夫定律计算出不同相线测量点的电压损失大小和方向,也可结合线路材质参数计算出线路距离,从而实现了通信网络路径权值和方向的间接测量。为了验证方法的有效性,提出了一种采用AMI测量参数的p-persistent CSMA洪泛路由算法,实验证明该方法可有效缩短电力线通信网络路径深度和网络时延。

In current power line communication（ PLC） networks,there still exists great difficulty to measure the signal power and the time delay,and the lack of effective path weights and direction is also a problem in the process of network establishment. Aimed to solve these problems,this paper proposes an indirect measuring method based on the AMI measuring parameters. By obtaining the circuit voltage,current,and phase parameters from the smart meters and concentrator of AMI system,the value of circuit voltage loss and the voltage direction can be calculated according to Kirchhoff＇s law,which belongs to the different phase line based on the load center of the low voltage distribution network. Moreover,the power line distance can also be achieved based on the material parameters,and the indirect measurement of the communication network path value and direction can be realized. In order to verify the effectiveness of the method,this paper proposes a p-persistent CSMA flooding network scheme based on AMI parameters. Experimental results show that the application of AMI parameters plays an important role on reducing the depth of the relay and improving the networking delay.