用于行波保护测试的暂态信号发生器关键技术
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摘要
作为暂态行波保护测试仪的重要组成部分,暂态信号发生器可将故障数据不失真地转换成模拟电压小信号。在介绍了暂态信号发生器的技术要求和工作原理的基础上,对其若干关键技术问题进行了讨论与研究。针对故障数据的处理方法、高速高精度数模转换的实现方案以及多路模拟输出的同步性等问题进行了深入分析。通过试验验证了测试仪暂态信号发生器工作的可靠性和有效性。
As an important part of test platform of transient traveling wave protection,the transient signal generator can transform the fault data into small analog voltage signal without distortion.The technical requirements and working principles of the transient signal generator are introduced,based on which,some key techniques are discussed and studied.The processing method of the fault data,the implementation scheme of high-speed and high-precision DA(Digital to Analog)conversion and the synchronization of the multi-channel analog output are deeply analyzed.The reliability and validity of the transient signal generator are verified by experiments.
As an important part of test platform of transient traveling wave protection,the transient signal generator can transform the fault data into small analog voltage signal without distortion.The technical requirements and working principles of the transient signal generator are introduced,based on which,some key techniques are discussed and studied.The processing method of the fault data,the implementation scheme of high-speed and high-precision DA(Digital to Analog)conversion and the synchronization of the multi-channel analog output are deeply analyzed.The reliability and validity of the transient signal generator are verified by experiments.
引文
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[6]孔瑞忠,董新洲,毕见广.基于电流行波的小电流接地选线装置的试验[J].电力系统自动化,2006,30(5):63-67.KONG Ruizhong,DONG Xinzhou,BI Jianguang.Test of fault line selector based on current traveling wave[J].Automation of Electric Power Systems,2006,30(5):63-67.
[7]姜博,董新洲,施慎行.配电网单相接地故障选线典型方法实验研究[J].电力自动化设备,2015,35(11):67-74.JIANG Bo,DONG Xinzhou,SHI Shenxing.Experimental research on typical single-phase grounding line selection methods of distribution network[J].Electric Power Automation Equipment,2015,35(11):67-74.
[8]阎石.数字电子技术基础[M].5版.北京:高等教育出版社,2006:520-524.
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[10]赵伟兵.高速CMOS数模转换器的设计[D].北京:清华大学,2005.ZHAO Weibing.Design of high-speed CMOS digital-to-analog converters[D].Beijing:Tsinghua University,2005.
[11]钟书鹏.12位高速电流开关型数模转换器的研究[D].北京:清华大学,2006.ZHONG Shupeng.Study on 12 bit high-speed current-steering digital-to-analog converter[D].Beijing:Tsinghua University,2006.
[2]董新洲,葛耀中,徐丙垠,等.暂态信号发生器[J].继电器,1997,25(5):41-43.DONG Xinzhou,GE Yaozhong,XU Bingyin,et al.Transient signal generator[J].Relay,1997,25(5):41-43.
[3]许飞,董新洲,王宾,等.新型输电线路单端电气量组合故障测距方法及其试验研究[J].电力自动化设备,2014,34(4):37-42.XU Fei,DONG Xinzhou,WANG Bin,et al.Combined single-end fault location method of transmission line and its experiments[J].Electric Power Automation Equipment,2014,34(4):37-42.
[4]刘慧海,张晓莉,姜博,等.行波故障测距装置的检测与评价[J].电力系统保护与控制,2015,43(1):145-149.LIU Huihai,ZHANG Xiaoli,JIANG Bo,et al.Testing and evaluation method of fault location equipment based on traveling wave[J].Power System Protection and Control,2015,43(1):145-149.
[5]王珺,董新洲,施慎行.配电线路单相接地行波保护的实现与试验[J].中国电机工程学报,2013,33(13):172-178.WANG Jun,DONG Xinzhou,SHI Shenxing.Scheme and test of traveling-waves based single-phase-to-ground protection for distribution lines[J].Proceedings of the CSEE,2013,33(13):172-178.
[6]孔瑞忠,董新洲,毕见广.基于电流行波的小电流接地选线装置的试验[J].电力系统自动化,2006,30(5):63-67.KONG Ruizhong,DONG Xinzhou,BI Jianguang.Test of fault line selector based on current traveling wave[J].Automation of Electric Power Systems,2006,30(5):63-67.
[7]姜博,董新洲,施慎行.配电网单相接地故障选线典型方法实验研究[J].电力自动化设备,2015,35(11):67-74.JIANG Bo,DONG Xinzhou,SHI Shenxing.Experimental research on typical single-phase grounding line selection methods of distribution network[J].Electric Power Automation Equipment,2015,35(11):67-74.
[8]阎石.数字电子技术基础[M].5版.北京:高等教育出版社,2006:520-524.
[9]康华光,陈大钦.电子技术基础数字部分[M].4版.北京:高等教育出版社,2001:396-398.
[10]赵伟兵.高速CMOS数模转换器的设计[D].北京:清华大学,2005.ZHAO Weibing.Design of high-speed CMOS digital-to-analog converters[D].Beijing:Tsinghua University,2005.
[11]钟书鹏.12位高速电流开关型数模转换器的研究[D].北京:清华大学,2006.ZHONG Shupeng.Study on 12 bit high-speed current-steering digital-to-analog converter[D].Beijing:Tsinghua University,2006.