CAJ | 학술논문

受导线产生的空间离子、风等因素的影响,直流输电线路的合成电场变化较大。为获取线路直流电场的横向分布特性,需要在测量断面上多点同时进行测量并统计分析。有线通信方式的直流电场测量系统在测量布置、调整测点位置等方面非常繁琐,并可能导致不同时段的测量结果难以反映电场的真实分布情况。为解决这一问题,采用MSP430单片机设计了基于nRF905模块的无线通信直流电场测量系统,通过对软件和硬件的优化设计消除了无线通信本身带来的干扰测量信号、通信可靠性降低、测量单元扩展受限等问题,制作样机并进行了现场试验。测试结果表明,该系统与有线通信直流电场测量系统具有相同的测量准确度,测试过程中通信正常,通信距离可达100m,可覆盖直流线路横向测量断面200m区域,完全可以满足直流电场测量的需要,同时可有效提高直流电场测量效率。
수도선산생적공간리자、풍등인소적영향,직류수전선로적합성전장변화교대。위획취선로직류전장적횡향분포특성,수요재측량단면상다점동시진행측량병통계분석。유선통신방식적직류전장측량계통재측량포치、조정측점위치등방면비상번쇄,병가능도치불동시단적측량결과난이반영전장적진실분포정황。위해결저일문제,채용MSP430단편궤설계료기우nRF905모괴적무선통신직류전장측량계통,통과대연건화경건적우화설계소제료무선통신본신대래적간우측량신호、통신가고성강저、측량단원확전수한등문제,제작양궤병진행료현장시험。측시결과표명,해계통여유선통신직류전장측량계통구유상동적측량준학도,측시과정중통신정상,통신거리가체100m,가복개직류선로횡향측량단면200m구역,완전가이만족직류전장측량적수요,동시가유효제고직류전장측량효솔。
The total electric field strength of DC transmission line is required to be simultaneously measured in multiple points and statistically analyzed along the measurement route in order to obtain the transverse distribution.It is difficult for traditional DC electric field measurement system with wire communication to arrange measurement locations,causing that the measurement data in different periods hardly reflect the actual electric field distribution.Thus,we designed a DC electric field measurement system with wireless communication based on nRF905module by taking MSP430as a center chip.By optimizing software and hardware design,those problems produced by wireless communication itself were solved,such as the disturbance to measurement signal,the reduction of communication reliability and the limited extensibility of measurement unit.Meanwhile,the prototype was tested in site.The measurement results indicate that the system has the same measurement accuracy as the traditional system,and the communication are normal during the test with the distance up to 100mto cover the transverse measurement route of 200mzone.So the system perfectly satisfies the requirements of DC electric field measurement and greatly promotes the measurement efficiency.