一种新型光纤电压互感器数字闭环控制系统模型研究  

Digital closed-loop control system model analysis of a new type optical fiber voltage transformer

作　　者：肖庆亮[1] 张朝阳[1] 杨德伟[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191

出　　处：《燕山大学学报》2010年第1期90-94,共5页Journal of Yanshan University

摘　　要：介绍了一种新型光纤电压互感器的原理以及闭环相关检测算法在其中的应用,给出了数字输出的变比计算公式。把光纤电压互感器作为一个数字闭环控制系统进行建模,得出系统输出和误差输出的传递函数模型,并分析了该模型的稳定性、误差指标及频率特性。通过样机进行实验验证,该模型能够很好地吻合实际系统,能够对样机的性能改进起指导作用。A new type of optical fiber voltage transformer （OVT） and its principle, including closed-loop correlation detection algorithm are introduced. The calculation formula of the ratio between the digital output and the voltage input is given. Putting the new OVT as a digital closed-loop control system model, the output transfer function and error transfer function are calculated, through which the stability, steady-state error and frequency characteristic are analyzed. According to the experimental verification of the OVT prototype, the model is well consistent with the actual system. So using the model to improve the performance of the OVT prototype is meaningful.

关 键 词：光纤电压互感器 闭环控制 模型 频率特性 

分 类 号：TM451.7[电气工程—电器]