考虑温度特性的全光纤电流互感器实时动态仿真模型
发布时间：2018-12-30 15:59
【摘要】：利用电力系统实时数字仿真系统(real-time digital simulator,RTDS),研究并建立了全光纤电流互感器(fiber optical current transformer,FOCT)的实时动态仿真模型。通过对FOCT检测系统中偏差与反馈2部分的合理简化,建立了等效的数字闭环控制系统模型;根据不同温度下,光纤Verdet常数和l/4波片相位延迟的变化规律,以及探测器接收光强关于l/4波片参数的数学模型,将可变的温度参数引入到了模型中。通过仿真试验,找到了能够补偿温度误差的l/4波片初始相位延迟角的范围,证明了所建FOCT实时动态仿真模型是合理的,能够有效模拟FOCT的稳态温度特性,且暂态特性良好,可用于对FOCT性能的深入研究及智能变电站相关设备的测试。
[Abstract]:Using the power system real-time digital simulation system (real-time digital simulator,RTDS), the real-time dynamic simulation model of all-fiber current transformer (fiber optical current transformer,FOCT) is studied and established. The equivalent digital closed-loop control system model is established by reasonably simplifying the deviation and feedback in FOCT detection system. According to the variation rule of fiber Verdet constant and phase delay of 1 / 4 wave plate at different temperatures and the mathematical model of the detector receiving light intensity about the parameters of l / 4 wave plate, the variable temperature parameters are introduced into the model. The range of initial phase delay angle of 1 / 4 wave plate which can compensate for temperature error is found through simulation experiments. It is proved that the FOCT real-time dynamic simulation model is reasonable and can effectively simulate the steady-state temperature characteristics of FOCT, and the transient characteristics are good. It can be used to study the performance of FOCT and test related equipment in intelligent substation.
【作者单位】： 新能源电力系统国家重点实验室(华北电力大学);国网吉林省电力有限公司吉林供电公司;
【分类号】：TM452
[Abstract]:Using the power system real-time digital simulation system (real-time digital simulator,RTDS), the real-time dynamic simulation model of all-fiber current transformer (fiber optical current transformer,FOCT) is studied and established. The equivalent digital closed-loop control system model is established by reasonably simplifying the deviation and feedback in FOCT detection system. According to the variation rule of fiber Verdet constant and phase delay of 1 / 4 wave plate at different temperatures and the mathematical model of the detector receiving light intensity about the parameters of l / 4 wave plate, the variable temperature parameters are introduced into the model. The range of initial phase delay angle of 1 / 4 wave plate which can compensate for temperature error is found through simulation experiments. It is proved that the FOCT real-time dynamic simulation model is reasonable and can effectively simulate the steady-state temperature characteristics of FOCT, and the transient characteristics are good. It can be used to study the performance of FOCT and test related equipment in intelligent substation.
【作者单位】： 新能源电力系统国家重点实验室(华北电力大学);国网吉林省电力有限公司吉林供电公司;
【分类号】：TM452
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