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.
结合自动补偿电网的特征，对利用零序电流的附加有功分量进行单相接地故障选线进行了研究与分析。
The paper made research and analysis on the topic of faulted line selecting in an auto compensated distribution network in use of the active part of residual currents.
该方法以电网电压为同步信号，在电网电压信号的过零点采样直流侧电容电压，并通过周期离散控制可以获得负荷电流有功分量。
The new control way can realize linear control for DC-bus voltage and get the fundamental component of the load current synchronously with a little of calculation.
本文提出的非正弦网络功率的分析方法是将视在功率分解成四个分量：有功功率、分散功率、无功功率、外加视在功率。
An analytic method of power in nonsinusoidal networks is suggested for the apparent power decomposition into four components, active power, scattered power, reactive power, and forced apparent power.
基于负荷和发电机的复功率在支路上引起的有功损耗分量，给出了负荷和发电机对元件使用份额的新定义。
Based on the branch active loss components incurred by individual loads and generators, a novel definition of the using portion of a power element by a particular load or generator is proposed.
在声场中真正传递声能量者仅是有功声强中的无旋分量。
It is shown that it is the irrotational component of the active intensity that transfers sound energy in sound field.
有功声强的无旋分量与表面声强有关，因此测量表面声强可避免有旋性的影响。
Because the irrotational component of the active intensity depends on the surface sound intensity, measuring the surface sound intensity can avoid the effect of the rotation.
首先运用对称分量法将单相异步电动机分为正序系统和负序系统，然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。
Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.
本文应用复声强的概念，讨论了复声强的实部即有功声强的有旋性质。指出：在声场中真正传递声能量者仅是有功声强中的无旋分量。
Using the concept of complex sound intensity, we discuss in this paper the rotational character of the active intensity which is the real part of the complex sound intensity.
本文应用复声强的概念，讨论了复声强的实部即有功声强的有旋性质。指出：在声场中真正传递声能量者仅是有功声强中的无旋分量。
Using the concept of complex sound intensity, we discuss in this paper the rotational character of the active intensity which is the real part of the complex sound intensity.
应用推荐