有功和无功电流补偿或线路压降补偿。
This function is sometimes called active and reactive current compensation or line drop compensation.
介绍一类基于瞬时功率理论的实时无功电流计算电路。
A class of compensating current calculating circuit based on instantaneous power theory is presented.
提出了一种新的单相电路的谐波和无功电流实时检测方法。
A new approach to real time detection of harmonic and reactive currents for single-phase circuit was proposed.
所提出的方法适用于有源电力滤波器的谐波和无功电流检测。
The proposed detecting approach can be used for detecting the harmonics and the reactive currents of active power filters.
本文介绍了常用的几种谐波和无功电流检测方法，并进行了比较。
Several methods of measuring harmonic and reactive power current are introduced and compared in this paper.
介绍了瞬时无功功率理论在谐波和无功电流实时检测方面的应用。
Instantaneous reactive power theory applied on harmonic and reactive current real-time detection is presented in this paper.
基于瞬时无功功率理论，对农用电网无功电流的检测方法进行了研究。
Based on the instantaneous reactive power theory, the method of detecting reactive current of agricultural power network is studied.
有源电力滤波器的两大关键技术是谐波与无功电流的检测和补偿电流控制。
The two key technologies are harmonic and reactive currents detection, and compensation currents control.
根据正弦函数的正交特性，提出了一种单相电路的谐波和无功电流检测方法。
This paper based on the orthogonality of sine, presents an approach to the detection of harmonic and reactive currents suitable for single-phase circuits.
既能单独检测出畸变电流中的任意电流分量，又能获得谐波和无功电流之和。
It can detect not only any current component in the distorted current, but also the sum of harmonic and reactive currents.
如何定义三相系统的瞬时无功电流、瞬时无功功率一直是学术界关心的问题。
How to define instantaneous reactive current and reactive power in three-phase non-sinusoidal asymmetrical systems is still a concerned problem by academia.
基于瞬时无功功率理论建立了谐波及无功电流检测系统闭环、开环的统一模型。
A unified model for harmonics and reactive current closed-loop or open-loop detection was established based on instantaneous reactive power theory.
在供电电网中，由电力电子设备产生的谐波和无功电流已经成为主要的污染源。
In power net the harmonic pollutions and reactive power component generated by power electronic equipments have been the major source.
从三相电路的综合矢量出发，提出了一种适用性广、算法简单的谐波及无功电流检测方法。
A detection approach of harmonics and reactive currents based on the integrated vector in 3 - phase circuit is proposed, which has the advantage of brief arithmetic and wide applications.
基于瞬时无功功率理论提出了一种应用高通滤波器同时检测高次谐波电流和无功电流的新方法。
A new method is proposed, based on the instantaneous reactive power theory, to detect high frequency harmonic current and instantaneous reactive current applying high pass filter simultaneously.
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。
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.
其次，论文引入了神经网络，设计了用于无功电流检测的BP神经网络结构，并给出了相应算法。
Secondly, in this thesis, a structure of BP Neural Network for detecting reactive current is designed and the corresponding algorithm is given.
仿真和实验研究证明这种电力有源滤波器能够消除谐波电流源型负载产生的无功电流和谐波电流。
The simulation and experimental results demonstrate that the proposed system can compensate harmonic current and reactive current generated by harmonic current source loads.
通过计算机仿真及试验证明，该有源电力滤波系统能很好地同时抑制电网中的高次谐波及无功电流。
Computer simulation and experiments show that the active power filter system can effectively suppress the high frequency harmonics and reactive currents at the same time.
将自适应噪声对消技术用于谐波和无功电流检测，提出了一种基于神经网络的自适应检测的新方法。
Using the adaptive noise canceling technology, this paper proposes a new detecting approach of harmonics and reactive currents based on neural networks.
以通用瞬时无功功率理论为基础，阐述了电压不对称和非正弦条件时的有功和无功电流的物理意义。
The interpretation of active and reactive currents in non-sinusoidal and unbalanced three-phase four-wire systems is given based on the generalized instantaneous reactive power theory.
提出在基于本地测量参数的UPFC的应用级控制中采用“无功电流控制”和“电压注入控制”的模式。
In view of local measurements on implication and control of UPFC, the control mode of reactive currents control and voltage injection should be used.
线路普遍存在的功率因数偏低现象，一方面会增加电网无功电流，另一方面会使电气设备运行效率降低。
The line exits power factor lower phenomenon that may increase virtual current and decrease operation efficiency of equipment.
它不仅有效地提高无功电流的补偿质量，改善了供电系统的功率因数，而且并联电容的成本和投切频率都很低。
It improves the quality reactive current compensation effectively and the power factor highly with lower capacitor costing and switching frequency.
文章主要介绍了静、动态补偿装置，其功率因数控制方式、无功功率（无功电流）控制方式、性能及应用场合。
This paper mainly introduces the power factor control method, reactive power(reactive current) control method, the performance and the applications of the dynamic & static compensation equipment.
本设计运用MATLAB语言实现信号预测模型的自适应仿真在有源滤波系统的谐波和无功电流补偿中的应用。
Using the MATLAB, this paper introduces an application in harmonics and reactive-current compensation for an active filter system, which based on the adaptive simulink in signal prediction.
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。
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.
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。
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.
通过仿真验证了在电网电压存在畸变时，有源电力滤波器的补偿效果良好，且可以根据对谐波和无功电流灵活补偿。
The results of simulation verify this scheme is effective, and in this scheme APF can compensate harmonic and reactive currents with the distorted source voltages flexibly.
通过仿真验证了在电网电压存在畸变时，有源电力滤波器的补偿效果良好，且可以根据对谐波和无功电流灵活补偿。
The results of simulation verify this scheme is effective, and in this scheme APF can compensate harmonic and reactive currents with the distorted source voltages flexibly.
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