CAJ | 학술논문

智能配电网除传统的树状拓扑结构外，还将出现环网、格状网等结构。建立具有这些特殊拓扑配电网的电力线信道模型并进行信道特性影响因素的分析是在智能配电网中应用电力线载波通信技术的必要前提和重要依据。首先提出了对不同网络拓扑具有通用性的基于信息节点的信道建模方法，在此基础上通过仿真分析了主干长度、分支长度、负载阻抗和分支个数等因素对环网拓扑下信道传输特性的影响规律，重点分析了这些影响因素对信号衰减的影响。通过实验验证了所得结果的正确性和有效性。所提出的分析方法和所得结论为设计智能配电网电力线载波通信的调制方法提供了必要的理论基础和技术手段。
지능배전망제전통적수상탁복결구외，환장출현배망、격상망등결구。건립구유저사특수탁복배전망적전력선신도모형병진행신도특성영향인소적분석시재지능배전망중응용전력선재파통신기술적필요전제화중요의거。수선제출료대불동망락탁복구유통용성적기우신식절점적신도건모방법，재차기출상통과방진분석료주간장도、분지장도、부재조항화분지개수등인소대배망탁복하신도전수특성적영향규률，중점분석료저사영향인소대신호쇠감적영향。통과실험험증료소득결과적정학성화유효성。소제출적분석방법화소득결론위설계지능배전망전력선재파통신적조제방법제공료필요적이론기출화기술수단。
In the intelligent power distribution network, there are not only tree-topology but also ring-topology, mesh-topology and so on. To establish the power line channel models of the distribution networks with these special topologies and analyze the factors that influence the channel characteristics is the premise and the important basis for the application of the PLC in smart distribution network. This paper presents a universal channel modeling method based on information nodes which is suitable for different network topology. Based on this method, the influence laws of multiple factors on channel transmission characteristics under ring topology is analyzed through simulation, such as the lengths between transmitter and receiver, branched line lengths, branched load impedances and number of branches. The analysis of the influence on the signal attenuation is stressed. The correctness and general applicability of the proposed approach and the conclusions are verified through lab measurements. The proposed modeling method and the conclusions provide necessary theoretical basis and technical means for power-line communication modulation method. <br> This work is supported by National Natural Science Foundation of China (No. 51007065).