全光纤电流互感器的温度特性

发布时间：2018-05-16 12:03

  本文选题：全光纤电流互感器 + 线性双折射　； 参考：《高电压技术》2015年11期

【摘要】：全光纤电流互感器(FOCT)比差随温度漂移会引起FOCT准确度下降。为解决这一问题,首先阐述了温度波动对全光纤电流互感器影响的机理,并依据该机理分别建立了温度对线性双折射影响的数学模型和线性双折射对全光纤电流互感器影响的数学模型。进而推导出温度对全光纤电流互感器影响的数学模型,通过该数学模型量化研究了FOCT比差随温度漂移问题。得到了FOCT温度特性为:在试验温度范围即10~60℃内,比差与线性双折射相位差和温度都近似呈线性关系。进一步试验验证了FOCT比差与温度的近似线性关系,且基于该关系对互感器进行温度补偿,可使其精度满足0.2级的要求。
[Abstract]:The FOCT accuracy will be decreased due to the temperature drift of the Foct ratio of all fiber current transformers. In order to solve this problem, the mechanism of the effect of temperature fluctuation on all-fiber current transformer is discussed. According to this mechanism, the mathematical models of the effect of temperature on linear birefringence and the influence of linear birefringence on all-fiber current transformer are established respectively. Furthermore, the mathematical model of the effect of temperature on all-fiber current transformer is derived, and the temperature drift problem of FOCT ratio is quantitatively studied by the mathematical model. The temperature characteristics of FOCT are as follows: in the range of test temperature, namely 1060 鈩，

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