CAJ | 학술논문

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ftimedivisionmultipleaccess，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。
수전훈방전급배경기후적영향，직류수전선로하적지면합성전장대소회재일정범위내수궤변화，연제방편、유효적지면합성전장동보측량계통대직류선로전자배경연구화평개구유중요의의。연제료기우ZigBee적지면합성전장분포식무선측량계통。분석료무선측량망락적절점구성화조망과정，중점분석료기우동보엄파보문적절점시간동보방법화기우개진시분다지접입ftimedivisionmultipleaccess，TDMA）궤제적수거전수협의，기이흔소적산법개소화능량개소실현료전장수거적동보채집여가고전수。현장측량시험증명：해전장측량계통조작방편，측량결과능준학반영지면합성전장적실제분포정황。
Being affected by the corona discharge and the environmental climate, the total ground electric field strength under DC transmission lines often changes randomly within a certain range. It is very significant for research and evaluation of electromagnetic environment of the DC transmission lines to develop a convenient and effective synchronous measurement system for total ground electric field. So a ZigBee-based distributed wireless measurement system for the measurement of total ground electric field is designed. The node configuration and the networking process of the wireless measurement network are analyzed, and the method to synchronize node time based on synchronization broadcast messages and the data transmission protocol based on time division multiple access （TDMA） mechanism are emphatically analyzed. Thus the synchronized acquisition and reliable transmission of electric field data can be implemented by very low algorithm cost and energy cost. On-site measurement testing results show that the proposed electric field measurement system is convenient to operate and the measured data can accurately reflect the actual distribution of total ground electric field.