P型环网结构的配电线载波组网方式研究

近年来,利用电力电缆屏蔽层载波通信传输配电自动化数据,是最经济、便捷和有效的一种可靠通信方式。城市小区普遍采用P型环网结构供电,采用电力电缆高频网桥耦合技术实现利用P型环网结构的电缆屏蔽层载波组网通信,是一种新的尝试,文章根据应用实例,通过现场测试多级分段电力电缆的屏蔽层信道的传输特性,分析载波组网通信效果,结果显示,利用多级分段电力电缆的屏蔽层载波通信传输配电自动化数据是可靠的。

Research of distribution line carrier network in P-ring structures

Using the shielding layer of buried power cables as a communication medium of transmitting distribution automation data is one kind of cost-effective,advantageous,effective and reliable communication modes.It is a new attempt which the buried cables shielding layer carrier communication in P-ring network structure is fulfilled by using high frequency bridges coupling technique,the P-ring structures of power networks are adopted in urban areas generally.In this paper through an application example,the transmission characteristics of shielding layer channel which are linked by multilevel subsection power cables,is measured,and the communicating effect of carrier network is analyzed.The series successful experiments indicate that it is reliable communication mode to transmit distribution automation data by using multilevel subsection power cables shielding layer carrier communication.