用于组合式光学电流互感器的模型参考自适应算法

Study on the Model Reference Adaptive Algorithm Used in Hybrid Optical Current Transducers

传统式电流互感器具有较高稳态电流测量精度 ,但存在饱和问题 ;光学电流互感器无磁饱和问题 ,但精度较低。本文提出的组合式光学电流互感器是这两种互感器的有机结合 ,达到优势互补。文中分析了其核心技术模型参考自适应算法的基本原理 ,提出几种可行算法对模拟信号作了仿真并进行了比较 ,对其中的最优算法进一步作了物理仿真实验 ,得到了较为满意的结果。

The advantages of current transformers(CT)and optical current transducers(OCT),i.e.the high accuracy of the steady state of current measurement of CTs and the ability of the transient current measurement of OCTs,are combined in The hybrid optical current transducer (HOCT)proposed in the paper.The basic principles of the model reference adaptive algorithm of the HOCT are analysed.In comparison with the simulation results of some other algorithms,the model referenec adaptive algorithm is selected to be teated in the lab.The test result is satisfactory.