电子式互感器校验仪的算法研究  

Research of arithmetic in electronic transformer calibrator

作　　者：卢珞先[1] 任立志[1] 张蓬鹤[2] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070 [2]国网武汉高压研究院,湖北武汉430074

出　　处：《电力系统保护与控制》2009年第2期58-60,64,共4页Power System Protection and Control

基　　金：国家电网公司科技基金项目(SGKJ[2007]247)

摘　　要：要使电子式互感器在电力系统中成功应用,必须对其准确的校验。针对当前电子式互感器校验过程中存在的问题,依据IEC60044-7和IEC60044-8,讨论了电子式互感器校验技术的基本原理和方法,并提出了一种新的校验方法,该方法引入准同步算法,并使该算法和DFT算法相结合,有效抑制了因电网频率波动而导致的非同步采样对校验结果的影响,最后对校验方法的实现过程进行了实验,验证了该方法的性能及效率,为电子式互感器检验装置的研制提供了有力的理论支持。It is necessary for electronic instrument transformers to make calibration before putting it into practice. The theory and method of calibration technology for electronic instrument transformers are discussed in this paper based on the standard of IEC60044-7 and IEC60044-8. A new calibration method is presented in order to solve existent problem of actual calibration course. The quasi-synchronous algorithm is introduced, and the quasi-synchronous algorithm and DF-f algorithm are integrated, and thus the accuracy of the calibration method influenced by the frequency vibration will be significantly improved. The experiment results of new calibration method is achieved, and it is well coincide with the testing results, It shows that the performance and efficiency of new calibration method is satisfied . It will provide the powerful theory support for the development of electronic instrument transformers.

关 键 词：DFT算法 准同步算法 电子式互感器 TMS320F206 

分 类 号：TM45[电气工程—电器]