Active queue management is a focus of current research. Random Early Detection (RED) is one kind of classical queue management algorithms.

主动队列管理是目前的研究热点，随机早期检测(RED)算法是一种经典的队列管理算法。

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In this paper, based on the orthogonality of sine function, a detection approach of generalized reactive current suitable for both the single phase and three phase active power filters is presented.

本文根据正弦函数的正交特性，提出了一种既适用于单相也适用于三相有源电力滤波器的广义无功电流检测方法。

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The test results show that this method is feasible for real time detection of harmonic and reactive current of the active power compensator. The circuits are very simple.

实验结果表明，这种检测方法是可行的，而且电路非常简单，可用于实时检测有源电力补偿器的谐波与无功电流。

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