Reactive power measurement of non-sinusoidal circuit is the hot-spot research in Electric Power System. 非正弦电路的无功测量是当前电力测量研究的热点。
Then the definitions of average and instantaneous reactive power based on Hilbert transforrnation for non-sinusoidal circuit are presented. 非正弦电路无功功率及瞬时无功功率尚无统一的定义。
This paper simply described several algorithms of reactive power, and investigated reactive power theory of the non-sinusoidal electric circuit and its algorithm of measurement. 简述了几种常用的无功功率测量算法,对非正弦电路无功功率理论及其无功功率测量算法进行了研究。
This welder becomes, not only, no reactive power, no harmonics in its circuit, but also, it will be light in weight and contraction in volume. 该焊机减少了该焊接设备的无功功率和高次谐波等,并缩小了焊机体积,减轻了质量。
Study on a Fast Detecting Method for Instantaneous Harmonic and Reactive Currents in Single-Phase Circuit 单相谐波和无功电流的快速检测方法
Definition of Reactive Power in Nonsinusoidal Periodic Current Circuit 非正弦周期电流电路无功功率实用定义
A novel capacitor reactive power compensation method and its circuit connection 新型电容无功补偿方法及其接线
Reactive power in nonsinusoidal electric circuit and its influence on reactive energy measurement 非正弦电路无功功率及其对无功计量的影响
The definition of instantaneous reactive power in sinusoidal circuit is still a pending problem and should be studied further. The authors consider that the theory of instantaneous power should be studied on the basis of the original definitions of instantaneous active and reactive power. 针对研究近一个世纪还没有解决的瞬时无功功率界定与定义的问题,该文认为应从原始瞬时有功功率、瞬时无功功率界定来研究瞬时功率理论。
Differential structure decreases circumstance and temperature's influence. The core of preamplifier is reactive circuit. 由于采用差动结构,减小了环境、温度等因素对系统的影响,前置电路中核心部分采用反馈放大电路。
The simulation model of active current separating method is established with Matlab software for harmonic and reactive current detection in single-phase circuit. The effect of low pass filter on harmonic current detection is simulated and analyzed. 针对单相电路谐波和无功电流检测的有功电流分离法,利用MATLAB软件建立仿真模型,就其中的低通滤波器对谐波电流检测效果进行了仿真分析。
Analysis and calculation on the instaneous reactive power of three-phase circuit 三相电路瞬时无功功率分析与计算
A kind of automatic reactive compensation control circuit in network designed by making use of Hall power sensor has already found its application to practice thus realizing the on-line automatic detection and the optimal compensation of network reactive power. 一种利用霍尔功率传感器设计的电网无功功率自动补偿控制电路已在实际中得到良好的应用,实现了电网无功功率的在线自动检测,从而达到电网无功功率的最佳补偿。
Instantaneous reactive power calculated in the measuring circuit is based on instantaneous voltage and instantaneous current value of the supply power line. The calculating method is simple, easy to realize. 检测电路是基于供电线路的瞬时电压、电流值进行瞬时无功功率的计算,方法简单、易于实现;
The analysis of two real-time detecting approaches of instantaneous harmonic and reactive current in single-phase circuit 两种单相电路瞬时谐波及无功电流实时检测方法分析
An intelligent reactive power compensator based on Synchronous Vacuum Circuit Breaker 基于同步真空断路器的智能无功补偿装置
Adopting the reactive circuit of twice harmonic to process the sensor signal, the system is closed loop. 对传感器信号处理采用的二次谐波反馈电路,电路为闭环系统。
A New Reactive Current ( Reactive Power) Measuring Circuit 一种新颖的无功电流(或无功功率)检测电路
Average and instantaneous reactive power of non-sinusoidal circuit based on Hilbert transformation 基于Hilbert变换的非正弦电路无功及瞬时无功功率定义
As for control circuit, a novel detecting method for harmonic current in single-phase circuit is introduced in detail, viewed as an extension of the idea of instantaneous reactive power theory in three-phase circuit. 在对三相电路瞬时无功功率理论的思想进行扩展的基础上,得到了单相电路谐波电流的瞬时检测方法。
Definitions and Physical Sense of Reactive Power in Non-sinusoidal Circuit 非正弦电路中无功功率的定义和物理意义
Making sure the electric parameters which electrodes stimulate nerve cells and designing reactive circuit to adapt to the changes of high luminance and contrast; 确定电极刺激神经元细胞的电参数并且设计具有反馈环节的电子电路来适应环境的强亮度和对比度变化;
A Study on Transient Reactive Power Frequency Component of Non-sinusoidal Current Circuit 非正弦周期电流电路瞬时无功功率频率分量研究
Builded model and did experiment about the reactive energy metering of three-phase four-wire circuit. 进行三相四线制电路的无功计量建模和实验研究。
Static reactive power generator with a special circuit structure, high frequency power electronic switching device, advanced control algorithm with real-time, the precise reactive compensation ability, and has the filter and inhibit the harmonic function. 静止无功发生器采用特殊的电路结构、高频率电力电子开关器件、先进的控制算法使其具有实时、精确的无功补偿能力,并且具有滤波和抑制谐波的功能。
Based on practical application, to achieve MCR reactive power compensation, design each functional circuit module, then on this basis, design software of MCR reactive power compensation control system. 文章从实际工程应用的角度出发,为实现MCR的无功补偿功能,设计出了各个功能电路模块,然后在此基础之上,进行了MCR的无功补偿控制系统功能软件程序设计。
The control method for single-phase power supply of electric railway traction power supply system, this paper based on the instantaneous reactive power theory of single-phase circuit harmonic detection method. 在控制方法上,对于单相供电的电气化铁路牵引供电系统,本文采用了基于瞬时无功功率理论的单相电路谐波检测方法。
The theory of instantaneous reactive power basic on vector analysis is used in the thesis to detect reactive power and reactive current of three-phase sinusoidal circuit. 本文采用基于矢量分析的瞬时无功功率理论来检测三相正弦电路的无功功率和无功电流。
Under particular definition, the reactive power measurement method suits non-sinusoidal circuit as well as sinusoidal circuit. 在一定的定义下,无功测量方法不但适用于正弦电路,也适用于非正弦电路下的无功功率测量。
For three-phase APF, the harmonic current detection methods based on the instantaneous reactive power theory of three-phase circuit are considered as recognized mature methods, but they also have some problems requiring solving. 对于三相有源电力滤波器,基于三相电路瞬时无功功率理论的谐波电流检测方法是得到公认的较为成熟的方法,但这些方法也存在一些问题有待解决。