CAJ | 학술논문

电力线载波通信在居民抄表、路灯控制等领域广泛应用，然而由于电力线不是专用信道，且受用电设备、电力负荷、线路结构等影响较大，其传输特性在时域、频域上具有多变性，直接影响到电力载波通信产品的业务承载能力和应用效果。文中研制了一种便携化低压电力线载波通信信道测试装置，实现了电力线载波信道的阻抗、衰减和噪声三个重要信道参量的在线测量，并可通过即时分析软件实时掌握载波信道的变化特征，对电力线通信产品的技术实现和工程化应用具有重要意义。
전력선재파통신재거민초표、로등공제등영역엄범응용，연이유우전력선불시전용신도，차수용전설비、전력부하、선로결구등영향교대，기전수특성재시역、빈역상구유다변성，직접영향도전력재파통신산품적업무승재능력화응용효과。문중연제료일충편휴화저압전력선재파통신신도측시장치，실현료전력선재파신도적조항、쇠감화조성삼개중요신도삼량적재선측량，병가통과즉시분석연건실시장악재파신도적변화특정，대전력선통신산품적기술실현화공정화응용구유중요의의。
Power line carrier communication is widely used in automatic meter reading and street lamp control etc. However, the power line is not a dedicated communication channel, and influenced by the electrical equipment,power load,grid structure and other factors largely.The channel transmission characteristics vary in time domain and fre-quency domain, which directly influence the business carrying capacity and application effect of power communication products.This paper introduces a portable low voltage power line carrier communication channel testing device, which can realize the online measurement of noise, impedance and attenuation of the power line carrier channel, and can get the variation characteristics of carrier channel through the real-time analysis software.The device is of great signifi-cance to the technology realization and engineering application of power line communication products.