本文選題：全光纖電流互感器 + 線性雙折射　； 參考：《高電壓技術(shù)》2015年11期

【摘要】：全光纖電流互感器(FOCT)比差隨溫度漂移會(huì)引起FOCT準(zhǔn)確度下降。為解決這一問題,首先闡述了溫度波動(dòng)對(duì)全光纖電流互感器影響的機(jī)理,并依據(jù)該機(jī)理分別建立了溫度對(duì)線性雙折射影響的數(shù)學(xué)模型和線性雙折射對(duì)全光纖電流互感器影響的數(shù)學(xué)模型。進(jìn)而推導(dǎo)出溫度對(duì)全光纖電流互感器影響的數(shù)學(xué)模型,通過該數(shù)學(xué)模型量化研究了FOCT比差隨溫度漂移問題。得到了FOCT溫度特性為:在試驗(yàn)溫度范圍即10~60℃內(nèi),比差與線性雙折射相位差和溫度都近似呈線性關(guān)系。進(jìn)一步試驗(yàn)驗(yàn)證了FOCT比差與溫度的近似線性關(guān)系,且基于該關(guān)系對(duì)互感器進(jìn)行溫度補(bǔ)償,可使其精度滿足0.2級(jí)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，

本文編號(hào)：1896740