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作 者:孙晓东 杨万 朱瑞楠 陈男 Sun Xiaodong;Yang Wan;Zhu Ruinan;Chen Nan(School of Electrical & Control Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China)
机构地区:[1]黑龙江科技大学电气与控制工程学院,哈尔滨150022
出 处:《黑龙江科技大学学报》2022年第1期123-127,共5页Journal of Heilongjiang University of Science And Technology
摘 要:为提高光纤电流互感器检测的准确度与灵敏度,利用数学建模理论研究光纤电流互感器的工作原理,设计光纤电流互感器的结构,分析温度对Verdet常数和线性双折射的影响,构建线性双折射对FOCT影响的数学模型,通过仿真验证温度和线性双折射对光纤电流互感器检测性能的影响。结果表明,温度在-30℃至50℃范围内,光纤电流互感器的比值误差在0.2%以内,符合0.2S级的测量要求,光纤电流互感器的灵敏度和准确度会随着温度的增加而下降。This paper aims to investigate the influence of temperature on optical fiber current transformer.The investigation is accomplished by studying the working principle of optical fiber current transformer by using mathematical modeling theory and analysis method;designing the structure diagram of optical fiber current transformer;analyzing the effects of temperature on Verdet constant and linear birefringence and the mathematical model behind the effect of linear birefringence on FOCT;and verifying,by simulation,the influence of temperature and linear birefringence on the detection performance of optical fiber current transformer.The results show that the ratio error of optical fiber current transformer is within 0.2%in the temperature range of-30℃to 50℃,up to the measurement requirements of 0.2S level,showing a decrease in the sensitivity and accuracy of optical fiber current transformer with the increasing temperature.
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