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电网技术  2012 

直流输电线路下地面合成电场的无线同步测量系统研究

, PP. 189-194

Keywords: 高压直流输电,合成电场,同步测量,ZigBee,无线传感器

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Abstract:

受电晕放电及环境气候的影响,直流输电线路下的地面合成电场大小会在一定范围内随机变化,研制方便、有效的地面合成电场同步测量系统对直流线路电磁环境研究和评价具有重要意义。研制了基于ZigBee的地面合成电场分布式无线测量系统。分析了无线测量网络的节点构成和组网过程,重点分析了基于同步广播报文的节点时间同步方法和基于改进时分多址接入(timedivisionmultipleaccess,TDMA)机制的数据传输协议,其以很小的算法开销和能量开销实现了电场数据的同步采集与可靠传输。现场测量试验证明该电场测量系统操作方便,测量结果能准确反映地面合成电场的实际分布情况。

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