CAJ | 학술논문

电网环境中由于用户经常会改变供电范围和供电对象，使负载发生变化，从而导致低压电力线网络的逻辑拓扑结构具有一定的“时变性”，这种变化会导致通信信道的变化甚至通信链路发生中断，降低电力线通信的可靠性。本文主要介绍了IEC61334的路由方法及基于此常用的中继方法，并针对常用中继方法的弊端提出了一种中继优化方法，该方法解决了所有节点作为中继而带来局部范围的电网谐波系数超标的问题，又提供了静态配置的可能，为中继分配提供了灵活可变的方法，使得通信网络随着电网环境动态变化实时优化。该方法已经在海兴的AMI载波通信系统应用，实践证明增加了中继优化后通信的可靠性大大提高。
전망배경중유우용호경상회개변공전범위화공전대상，사부재발생변화，종이도치저압전력선망락적라집탁복결구구유일정적“시변성”，저충변화회도치통신신도적변화심지통신련로발생중단，강저전력선통신적가고성。본문주요개소료IEC61334적로유방법급기우차상용적중계방법，병침대상용중계방법적폐단제출료일충중계우화방법，해방법해결료소유절점작위중계이대래국부범위적전망해파계수초표적문제，우제공료정태배치적가능，위중계분배제공료령활가변적방법，사득통신망락수착전망배경동태변화실시우화。해방법이경재해흥적AMI재파통신계통응용，실천증명증가료중계우화후통신적가고성대대제고。
Load in power grid environment changed because end users usually change the objects which is supplied power often leads to the change of topology in power grid, and disconnect of the communication association, and PLC communication becomes not reliable. Routing mechanism of IEC61334 and the common repeating methods based on IEC61334 are introduced in this paper, and an advanced repeating method is promoted due to the disadvantages of the common ones. This method can solve the problem of over harmonic owing to all nodes as the repeater, it also supports static configuration for repeaters, so the communication network can be optimized along with the change of power grid. This method has been implemented in Hexing’ s AMI system, and it is proved that the reliability of communication be-comes much better because of advanced repeating method.