期刊文献+

磁传感器阵列测量大电流实验系统 被引量:10

A High Current Measurement Experimental System Using Magnetic Sensor Arrays
下载PDF
导出
摘要 电力系统中现有的大电流测量设备往往存在体积大、测量范围窄、绝缘困难等缺陷,故提出了使用磁传感器阵列测量交直流大电流的思路,该测量方法具有体积小、成本低、非接触测量、交直流通用、可数字化输出等优点。为了分析在实际系统中影响该方法测量精度的若干因素,利用基于离散傅里叶变换(DFT)的多相大电流测量算法,设计了大电流实验测量装置,并使用该装置进行了一系列不同母排形状的测量实验,并对各测量环节产生的误差来源进行了理论分析。实验结果验证了本测量方法的有效性。 Currently available methods for high current measurement otten have shortcomings of large volume, limitea measurement range and difficulty in insulation in power systems. Hence the demand of many electrical applications for novel technologies to overcome these problems. To this end, a promising solution is the utilization of magnetic sensor arrays to measure both the AC and DC large current in a power system. Compared with transformers, this approach has such advantages as a smaller size, lower cost, digital output and non-contact measurement. In order to analyze several aspects affecting the measuring accuracy, the poly-phase current measurement algorithm based on the DFT is employed, and the hardware and software frameworks of the experimental measurement system are designed. A series of experiments on different bus-bar cross sections are completed with the experimental system, and the current errors introduced in each step are also analyzed. The experimental results have confirmed the validity of the approach proposed.
出处 《电力系统自动化》 EI CSCD 北大核心 2007年第18期77-81,共5页 Automation of Electric Power Systems
基金 国家自然科学基金资助项目(50477026)~~
关键词 大电流测量 离散傅里叶变换 磁传感器阵列 实验系统 电力系统 high current measurement DFT magnetic sensor arrays experimental system power system
  • 相关文献

参考文献15

二级参考文献51

  • 1张可畏,王宁,段雄英,邹积岩,黄智宇.用于电子式电流互感器的数字积分器[J].中国电机工程学报,2004,24(12):104-107. 被引量:109
  • 2姚建军,王敬,王建华,耿英三.磁传感器阵列测量电流时的干扰排除理论研究[J].中国电机工程学报,2004,24(12):160-164. 被引量:9
  • 3刘青,王增平,徐岩,焦彦军,曲艳华.光学电流互感器对继电保护系统的影响研究[J].电网技术,2005,29(1):11-14. 被引量:71
  • 4[6]Zhang Gang,Li Shaohui,Zhang Zhipeng,et al. A Novel Electro-optic Hybrid Current Measurement Instrument for High-voltage Power Lines. IEEE Trans on Instrumentation and Measurement,2001,50(1):59~62
  • 5Ma X,IEEE Trans Power Delivery,1998年,13卷,4期,1015页
  • 6Ning Y N,Rev Sci Instrum,1995年,66卷,5期,3097页
  • 7Pai S T,Sensors Actuators.A,1992年,35卷,2期,107页
  • 8Luca Di Rienzo, Renzo Bazzocchi, Angelo Manara. Circular arrays of magnetic sensors for current measurement[J]. IEEE Transactions on Instrumentation and Measurement, 2001, 50(5): 1093-1096.
  • 9Bazzocchi R, Manara A. Spatial DFT analysis from magnetic sensor circular array data for measuring a DC current flowing in a rectangular bus-bar[C]. IEEE Instrumentation and Measurement Technology Conference, Baltimore, MD, USA, 2000.
  • 10Bazzocchi R, Di Rienzo L. Interference rejection algorithm for current measurement using magnetic sensor arrays[J]. Sensors and Actuators,A: Physical, 2000, 85(1): 38-41.

共引文献267

同被引文献120

引证文献10

二级引证文献56

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部