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首页> 外文会议>2013 48th International Universities' Power Engineering Conference >Development of power system differential protection based on optical current measurement
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Development of power system differential protection based on optical current measurement

机译：基于光电流测量的电力系统差动保护开发

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A theoretical evaluation of a novel, all-optical differential current protection scheme employing low voltage piezoelectric transducers, fiber Bragg grating sensors and Rogowski coils is presented in this paper. The optical power reflected from the sensors is monitored by means of a single photodetector, whereas fault occurrence is detected by a simple optoelectronic threshold detector. We demonstrate through simulations that an immediate response to an increase in differential current can be achieved even at low voltage levels such as these generated by Rogowski coils providing a low-cost and fast-acting fault detection system.
机译：本文提出了一种新颖的，采用低压压电换能器，光纤布拉格光栅传感器和Rogowski线圈的全光差动电流保护方案的理论评估。从传感器反射的光功率通过单个光电检测器进行监控，而故障发生则通过简单的光电阈值检测器进行检测。我们通过仿真证明，即使在低电压水平（例如由Rogowski线圈产生的低电压水平）下，也可以实现对差分电流增加的立即响应，从而提供了一种低成本，快速动作的故障检测系统。

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