哈尔滨电业局无线电力负荷管理系统抗干扰分析

Anti-interference analysis for wirefess electric load management system of Harbin Electric Power Bureau

电力负荷管理系统主要采用无线通讯方式,无线电信号容易受到多种同频和调频的干扰,结合哈局无线电力负荷管理系统在通讯中遇到的自发自收和终端上行信号被抑制等干扰情况,通过对主站电台收发设备的测试及收发场强的测试,分析了产生这些干扰现象的原因。采用加装带通滤波器和带宽滤波器及更换工作频点,彻底解决哈尔滨电业局主站干扰问题。

In the light of the interferences,such reception of one's own transmission and upgoing signals being suppressed at terminals,encountered during communication in the wireless electric load management system of Harbin Electric Power Bureau,the causes for these interferences are analysed by testing the primary station radio set transmission and reception equipment and the reception and transmission field intensity,and these interferences are eliminated thoroughly by adding band pass lifters and wide band filters.