工频电力通信是一种以配电网为介质的新型通信技术。配电网中的 5 0Hz基波及 5次电流谐波影响上行电流信号的检测。文中提出 ,背景电流抵消后让信号通过基于自适应滤波技术的陷波器 ,可去除背景中残留的基波及谐波电流的影响。实际应用说明 ,在此基础上再采用匹配滤波 ,可以很好地检测上行电流信号 ,使该通信系统能适应高耗能地区的电网环境 Power frequency power communication is a new communication technology based on distribution network. The 5 0 Hz fundamental and 5 current harmonics in the distribution network affect the detection of the upstream current signal. The paper proposes that the background current cancels the signal through the filter based on adaptive filtering technology to remove the residual fundamental and harmonic currents in the background. The actual application note, on this basis, then use the matched filter, you can detect the upstream current signal well, so that the communication system can adapt to the power grid environment in high energy-consuming areas