基于数据多重模糊过滤的电网信号弱区域通信系统设计  

Design of power grid signal weak area communication system based on multiple fuzzy filtering of data

作　　者：张万杰 李宏梅 李艳 张磊 杨立超 ZHANG Wanjie;LI Hongmei;LI Yan;ZHANG Lei;YANG Lichao(Yunnan Power Grid Co.,Ltd.Dehong Power Supply Bureau,Dehong 678400,China)

机构地区：[1]云南电网有限责任公司德宏供电局,云南德宏678400

出　　处：《电子设计工程》2023年第18期183-186,195,共5页Electronic Design Engineering

摘　　要：当前的通信系统在电网信号弱区域对干扰信号的过滤能力较差,通信稳定性较差。针对上述问题,设计基于数据多重模糊过滤的电网信号弱区域通信系统。硬件设计以激励器为核心,通过COFDM编码单元建立多径干扰。选用I/Q调制器和模数转换实现信息校正,通过时钟同步模块内部的时钟频率信号保证信号同步。系统的软件利用数据多重模糊过滤技术,分析通信信号属性关联度,判断信号关联度,得到弱电区域性质阈值,分析信号关联,与阈值比较,完成模糊过滤,过滤掉干扰信息。实验结果表明,所设计系统能够有效提高干扰信息和冗余信息的过滤效率,提高通信过程的稳定性。The current communication system has poor filtering ability for interference signals and poor communication stability in the area with weak power grid signals.In view of the above problems,a power grid signal weak area communication system based on data multiple fuzzy filtering is designed.The hardware design takes the exciter as the core,and establishes multipath interference through COFDM coding unit.I/Q modulator and analog⁃to⁃digital conversion are selected to realize information correction,and the signal synchronization is ensured by the clock frequency signal inside the clock synchronization module.The software of the system uses the data multiple fuzzy filtering technology to analyze the attribute correlation degree of the communication signal,judge the signal correlation degree,obtain the property threshold of the weak current area,analyze the signal correlation,compare with the threshold,complete the fuzzy filtering and filter out the interference information.The experimental results show that the designed system can effectively improve the filtering efficiency of interference information and redundant information and improve the stability of communication process.

关 键 词：数据多重模糊 模糊过滤 电网信号 弱区域通信 通信系统 

分 类 号：TN7[电子电信—电路与系统]