光源光谱对光纤电压互感器性能的影响  

Effects of Light Source Spectrum on Performance of Fiber Optic Voltage Sensor

作　　者：王巍[1] 冯文帅[1] 王学锋[1] 

机构地区：[1]中国航天电子技术研究院,北京市100094

出　　处：《电力系统自动化》2012年第23期98-102,共5页Automation of Electric Power Systems

基　　金：国家电网公司科技项目"全光纤数字式电流;电压互感器的研制和产业化推广"~~

摘　　要：从理论上分析了光源的光谱对双光路光纤电压互感器性能的影响,尤其采用Jones矩阵方法分析了光路中起偏器、1/4波片、电光晶体和偏振光分束器的界面背向反射和背向散射产生的寄生干涉的影响。其次,分析了光源相干函数中次相干峰对光纤电压互感器性能的影响。根据以上分析,给出了计量用光纤电压互感器对光源光谱的要求。采用光谱符合要求的光源进行了试验,结果表明光纤电压互感器性能满足应用要求。The effects of light source spectrum on performance of the optic fiber voltage sensor（OFVS）are analyzed theoretically.Especially,the coherent multi-path effects,caused by the back reflection and the backscatter generated by the interface of the polarizer,the quarter wave plate,the electro-optic crystal and the polarization beam splitter are analyzed with Jones matrix method.Then the effect of the secondary peak of the light source coherence function on the performance of OFVS is also investigated.According to the above theoretical analysis,the spectrum requirements of OFVS for measurement are given.A test is conducted with a light source meeting above spectrum requirements,and the results show that the performance of OFVS can meet application requirements.

关 键 词：光纤电压互感器 光源 光谱 JONES矩阵 

分 类 号：TM451.7[电气工程—电器]