电力线载波中传输线模型的建立及应用  

THE ESTABLISHMENT AND APPLICATION OF TRANSMISSION LINE MODEL IN POWER LINE CARRIER

作　　者：刘红[1] 张东来[1] 孙光伟[1] 

机构地区：[1]哈尔滨工业大学,哈尔滨150001

出　　处：《电力系统及其自动化学报》2002年第3期27-31,62,共6页Proceedings of the CSU-EPSA

摘　　要：本文根据均匀传输线理论 ,建立了传输线模型。利用此模型对电力线载波收发器的传输特性进行了测试 ,测试的主要内容包括 :传输距离和负载对传输特性的影响。实验结果表明 :随着距离的增加和电力线上负载的增加 ,信号传输的正确率降低。根据此实验结果 ,本文提出了收发器的优化设计方案 :提高收发器的发射功率、降低其发射频率。该方案在实验中取得了良好效果。In this paper, transmission line model has been established by the theory of even transmission line. The transmission character of the transceiver has been experimented by use of this model. The experimental result shows that transmission distance and load on power line have great effects on transmission character. The right ratio of signal transmission becomes lower as the transmission distance and load on power line are increasing. According to this conclusion, the designing project of the transceiver has been optimized by lowing transceiver's frequency and increasing its projecting power. It shows that this optimizing project has greatly improved the right ratio of signal transmission, so the signal transmission is more reliable.

关 键 词：电力线载波 传输线模型 分布参数 传输特性 

分 类 号：TM73[电气工程—电力系统及自动化]