【摘要】 实现高频信号跨越变压器传输在配电网通信中具有重要的实际意义。针对跨 1 0 k V/3 80 V变压器传输 40 k Hz～ 5 0 0 k Hz高频信号问题 ,设计了一个高频通信信号传输装置。提出高频信号传输装置的基本设计原则为耦合变压器的耦合系数与滤波器的品质因数的乘积为 1及阻抗匹配。计算机仿真与实际装置的测量结果表明 ,按此原则设计的装置可以实现高频信号的双向传输 ,带内工作衰减小于 1 d B且为线性相位更多还原

【Abstract】 The transmission of the com munication signals over the distribution power transform ers is of great importance in power line comm unications. A novel apparatus for the 40 k Hz～ 5 0 0 k Hz signal transmission is designed and the designing principle and the sim ulation as well as experiment results are also given.The principle is thatthe product of the couple factor k and the quality factor of the filter Q should approach to 1and the impedance should be m atched. The experim ent result of the apparatus shows that the lowest attenuation will be less than1d B and the linear phase can be achieved with the designed apparatus.更多还原