摘要
设计了一种新型的电流传感头—PCB型Rogowski线圈,介绍了其工作原理及增大互感的方法。基于MATLAB软件,对影响线圈动态性能的参数进行了数学分析,得出了线圈优化设计的规律。在此基础上,优选线圈参数,设计了由PCB型Rogowski线圈和积分器组成的测量系统,并对其灵敏度和频率特性进行了分析计算。结果表明,该系统具有较高的灵敏度和良好的频率特性,能满足电力系统中对大电流的测量要求。
A new current sensor head was designed,the principle ofPCB Rogowski coil and the way to improve the mutual inductance were introduced. The factors influencing dynamic characteristics of coil were analysed by MATLAB software ,and obtained the law of optimum design for coil .Based on those ,the measurement system which was made up of PCB Rogowski coil and integrator was designed by selecting suitable parameters ,and the sensitivity and frequency characters were analyzed. The results show that the sensitivity and frequency characteristics of the system are good,and can meet the demand of measuring current in the power system.
出处
《机械设计与制造》
北大核心
2009年第8期24-26,共3页
Machinery Design & Manufacture
基金
安徽省自然科学基金资助项目(01042309)
江苏大学高级人才基金资助项目(03JDG-012)
