The paper puts forward an active current detection of the Fryze definition based on the mean filter.
本文提出了均值滤波器对Fryze时域功率定义下的有功电流实时检测方法,该滤波器为一具有线性相位的有限冲激响应(FIR)数字滤波器,可以使得应用于三相电路的控制系统在三分之一个周期处就跟随电网的变化,单相电路的控制系统在一个周期处就跟随电网的变化,在理论分析的基础上,本文对该方法进行了仿真。
According to the equivalent circuit model of non-linear load,and using "when load current is periodic function,the integral in a period for absolute value of the difference between the load current and fundamental active current is the least" as detecting principle,a harmonic current detecting method for single-phase active power filter based on iterative algorithm was proposed.
根据非线性负载的等效电路模型,以“当负载电流为周期电流时,负载电流与负载基波有功电流差的绝对值在一个周期内的积分值最小”为检测原理,提出了一种基于迭代算法的有源电力滤波器单相电路谐波电流检测方法。
Using "when load current is periodic function,the integral value in a period for absolute value of load current subtracting fundamental active current is the least" as detecting principle,a detecting approach of harmonic current in single-phase circuit based on fast iterative algorithm in active power filter was proposed.
以“负载电流为周期电流时,负载电流与负载基波有功电流差的绝对值在一个周期内的积分值最小”为检测原理,提出了一种基于迭代算法的有源电力滤波器单相电路谐波电流检测方法。
Then the method for zero sequence current direction protection is proposed based on the character parameter of zero sequence active current.
针对矿井低压电网漏电保护装置存在的问题,分析了发生漏电时电流序分量的组成特点,得出了上级漏电保护装置影响下级漏电保护动作可靠性的结论,提出在分支馈电开关处采用零序有功电流作为特征参数的方法,并给出了直接采样零序有功电流的数据采集系统。
New method of harmonic detection based on separating active current
基于有功电流分离的新型谐波检测法
30 per cent of the current in the circuit is not doing useful work.
这电路中30％的电流不在做有用功。
A kind of Current Transformer with Unbalance Current Protection
一种具有不平衡电流保护功能的电流互感器
Improved Detecting Method for Harmonic and Fundamental Active and Reactive Currents
改进型谐波与基波有功和无功电流检测法
" Class 0.5, 1 and 2 alternating current watthour meters"
GB/T15283-19940.5、1和2级交流有功电度表
Alternating current static watt-hour meters for active energy (classes 1 and 2)
GB/T17215-19981和2级静止式交流有功电度表
This function is sometimes called active and reactive current compensation or line drop compensation.
此功能有时称为有功和无功电流补偿或线路压降补偿。
RMS, reactive power and active power are calculated most efficiently and most accurately using wavelet transform in time domain.
用小波变换可在时间域高效准确地求电压电流有效值、有功和无功。
Detecting Method for Harmonics and Reactive Currents in Active Power Filter
有源电力滤波器谐波及无功电流的检测
Study on Compensating Harmonic and Reactive Currents Active Power Filter for the Electrified Railway System
补偿电铁谐波及无功电流的有源滤波器的研究
The Detect Method of Harmonic and Reactive Current for Active Power Filter
有源电力滤波器谐波及无功电流的检测方法
(electricity) the act of increasing voltage or power or current.
（电学）电压、功率、电流增加。
arbitray phase angle power relay
有功无功功率继电器
arbitrary phase-angle power relay
有功-无功功率继电器
The measuring equipment is of LCD displayer and standard current output.
该测量装置具有LCD显示和标准电流输出功能。
Research on 1kW Soft-switch Grid-connected PV Inverter;
1kW具有零电流关断功能的并网逆变器的研制
The Discussion Active High Power Factor Electronic Ballast;
关于有源高功率因数电子镇流器的讨论
Ground-fault Protection Principle Using Compensated Current and Active Component for Arc-suppression Coil Neutral Grounded Systems;
基于补偿电流与有功分量的接地保护原理
