电流互感器试验分析软件开发与应用
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摘要
为了解决现场电流互感器(CT)试验存在的人机交互界面操作不便,系统、算法存在局限性和时间的延迟性,数据不可靠性和数据采样点不够精确,结果分析误差较大和人为因素权重影响较大,不能形成完整的试验报告和满足现场新老CT试验设备,降低试验设备购置成本等问题,本文基于MATLAB编程语言中的GUI界面图形处理,开发出了满足电力系统现场CT试验应用软件。
In the field test of current transformer( CT),the existing problems are those as below: the man-machine interaction interface is unhandy to operate; system and algorithm have limitations and time delay; unreliability of data exists and data sampling points are not accurate enough; the error of result analysis is larger and the man-made factors weigh more; test report is unable to be generated imperfectly,old and new field CT test equipments are not compatible with the test and purchasing costs of test equipments are hard to be reduced. In order to solve these problems,the field CT test application software is developed based on the GUI interface graphics in MATLAB programming language to satisfy power system.
In the field test of current transformer( CT),the existing problems are those as below: the man-machine interaction interface is unhandy to operate; system and algorithm have limitations and time delay; unreliability of data exists and data sampling points are not accurate enough; the error of result analysis is larger and the man-made factors weigh more; test report is unable to be generated imperfectly,old and new field CT test equipments are not compatible with the test and purchasing costs of test equipments are hard to be reduced. In order to solve these problems,the field CT test application software is developed based on the GUI interface graphics in MATLAB programming language to satisfy power system.
引文
[1]施晓红,周佳.精通GUI图形界面编程[M]北京:北京大学出版社,2003.SHI Xiaohong,ZHOU Jia.Proficient in GUI graphical interface programming[M].Beijing:Beijing University Press,2003.
[2]孙志忠,闻震初,袁慰平.数值分析[M].南京:东南大学出版社,2011.SUN Zhizhong,WEN Zhenchu,YUAN Weiping.Numerical analysis[M].Nanjing:Southeast University Press,2011.
[3]黄杨明,林浩勤,吉宏浩,等.电流互感器饱和的校核方法及应用[J].机电信息,2016(15):20-23.HUANG Yangming,LIN Haoqin,JI Honghao,et al.Checking methods and application of current transformer saturation[J].Mechanical and Electronic Information,2016(15):20-23.
[4]李强,朱永胜,李健,等.电流互感器10%误差现场校验方法及改善措施[J].电工技术,2011(2):66-67.ZHU Yongsheng LI qiang,LI jian,et al.Field test method and improvement measures of current transformer of 10%error[J].Journal of Electrotechnics,2011(2):66-67.
[5]陈宏山,余江,周红阳.继电保护受电流互感器饱和的影响及防误动措施[J].南方电网技术,2013,7(1):65-67.CHEN Hongshan,YU Jiang,ZHOU Hongyang.The effect of current transformer saturation on relay protection and related countermeasures[J].Southern Power System Technology,2013,7(1):65-67.
[6]郭耀珠,石光,刘华,等.保护用电流互感器10%误差曲线现场测试及其二次负载校核[J].电力系统保护与控制,2008,36(23):101-104.GUO Yaozhu,SHI Guang,LIU Hua,et al.The field test on secondary load of current transformer and the calculation of its 10%error[J].Power System Protection and Control,2008,36(23):101-104.
[2]孙志忠,闻震初,袁慰平.数值分析[M].南京:东南大学出版社,2011.SUN Zhizhong,WEN Zhenchu,YUAN Weiping.Numerical analysis[M].Nanjing:Southeast University Press,2011.
[3]黄杨明,林浩勤,吉宏浩,等.电流互感器饱和的校核方法及应用[J].机电信息,2016(15):20-23.HUANG Yangming,LIN Haoqin,JI Honghao,et al.Checking methods and application of current transformer saturation[J].Mechanical and Electronic Information,2016(15):20-23.
[4]李强,朱永胜,李健,等.电流互感器10%误差现场校验方法及改善措施[J].电工技术,2011(2):66-67.ZHU Yongsheng LI qiang,LI jian,et al.Field test method and improvement measures of current transformer of 10%error[J].Journal of Electrotechnics,2011(2):66-67.
[5]陈宏山,余江,周红阳.继电保护受电流互感器饱和的影响及防误动措施[J].南方电网技术,2013,7(1):65-67.CHEN Hongshan,YU Jiang,ZHOU Hongyang.The effect of current transformer saturation on relay protection and related countermeasures[J].Southern Power System Technology,2013,7(1):65-67.
[6]郭耀珠,石光,刘华,等.保护用电流互感器10%误差曲线现场测试及其二次负载校核[J].电力系统保护与控制,2008,36(23):101-104.GUO Yaozhu,SHI Guang,LIU Hua,et al.The field test on secondary load of current transformer and the calculation of its 10%error[J].Power System Protection and Control,2008,36(23):101-104.