杨挺¹, 王林林¹, 黄志勇¹, 盆海波¹, 张卫欣², 薛飞³
AuthorsHTML:杨挺¹, 王林林¹, 黄志勇¹, 盆海波¹, 张卫欣², 薛飞³
AuthorsListE:Yang Ting¹, Wang Linlin¹, Huang Zhiyong¹, Pen Haibo¹, Zhang Weixin², Xue Fei³
AuthorsHTMLE:Yang Ting¹, Wang Linlin¹, Huang Zhiyong¹, Pen Haibo¹, Zhang Weixin², Xue Fei³
Unit:1. 天津大学电气自动化与信息工程学院，天津 300072；2. 国网天津市电力公司电力科学研究院，天津 300384；3. 国网宁夏电力公司电力科学研究院，银川 750002
Unit_EngLish:1．School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
2．Electric Power Research Institute of State Grid Tianjin Electric Power Corporation, Tianjin 300384, China
3．Electric Power Research Institute of State Grid Ningxia Electric Power Company, Yinchuan 750002, China
Abstract_Chinese:用电信息采集系统中低压电力线载波环境复杂, 为提高载波通信系统可靠性, 本文提出了一种高可靠性载波路由算法．算法以误码率作为可靠性测度指标, 首先分析了线路环境以及设备信噪比对低压载波通信误码率的作用机理, 然后建立以设备信噪比为权重的赋权网络可靠性分析模型．为减少冗余转发节点、节省网络资源, 本文结合图论中极小连通支配集概念, 提出了一种应用于低压电力线载波路由的极小连通支配集路由算法．选取50节点的载波台区进行实验, 实验结果表明, 与分簇路由算法相比, 在BPSK调制模式下, 本文算法实现了误码率降低14.9% 以上, 并实现不同规模台区的低压电力线载波通信网络的可靠组网．
Abstract_English:Given the complex environment of low voltage power line carrier in power information collection system，in this paper，a high-reliability carrier routing algorithm is proposed to improve the reliability of carrier communication system. In this algorithm，the bit error rate(BER)is used as the measure of reliability. Firstly，the algorithm analyzes the influence of line environment and device signal-to-noise ratio(SNR)on BER of low voltage carrier communication，and then the reliability analysis model of the weighted network with the SNR of the equipment is established. In order to reduce redundant forwarding nodes and save network resources，a minimum connected dominating set routing algorithm for low voltage power line carrier routing is proposed based on the concept of minimal connected dominating set in graph theory. The 50 nodes carrier station is selected for the experiment. The results show that compared with the clustering routing algorithm，the BER is reduced by more than 14.9% when the BPSK modulation mode is selected. The proposed algorithm can realize reliable networking of low voltage power line carrier communication network in areas of different scales and station area.
Keyword_Chinese:用电信息采集系统; 载波路由; 极小连通支配集; 误码率
Keywords_English:power information collection system; carrier routing; minimum connected dominating set; bit error rate(BER)

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