In this paper, depending on the real problems of the power system harmonics, first describing the classification, topological structure, the advantages and applications of active power filter.
本文从电力系统谐波研究的实际问题出发，首先阐述了有源电力滤波器的分类及拓扑结构以及优势和应用前景。
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。
By way of describing the mathematical model and analyzing the transient phenomena of active impact load in power systems, its real-time control methods are discussed.
本文从电力系统有功冲击负荷的数学模型和暂态过程着手，分析和探讨了有功冲击负荷实时控制的基本原理和方法。
It shows that the control system meets real time requirement of the active power filter and the compensation properties of the active power filter are very good.
实验表明，该控制系统满足有源滤波器的实时控制要求，并联混合型滤波器的滤波性能良好。
This paper presents a novel detecting method for harmonics and reactive current in single-phase active power filter based on calculation of the real part of the fundamental load current.
本文提出了一种单相有源电力滤波器谐波和无功电流检测的新方法—负荷电流基波有功分量法。
The traditional relational database management system can't fulfill the need of times-critical applications, such as power system monitor. The active real-time technology emerges as The Times require.
传统的关系型数据库不能满足电网监控这样的时间关键型应用对实时数据快速响应的要求，而主动实时数据库技术应运而生。
Active Power Filter (APF) is a good method for real-time harmonic elimination which has been developed since 1980's. The study on APF has become a hot research field.
有源电力滤波器(APF)是80年代以来兴起的性能较好的谐波抑制装置，是比较热门的研究领域。
Active Power Filter (APF) is a good method for real-time harmonic elimination which has been developed since 1980's. The study on APF has become a hot research field.
有源电力滤波器(APF)是80年代以来兴起的性能较好的谐波抑制装置，是比较热门的研究领域。
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