1) harmonic current
谐波电流
1.
PS-3000 harmonic current test system based on BP algorithm;
基于神经网络BP算法的PS-3000谐波电流检测系统
2.
Shunt active filter based on harmonic current quick measuring method;
基于谐波电流快速检测方法的并联型有源滤波器
3.
Assess harmonic currents of electric locomotive with Laguerre polynomials;
基于Laguerre多项式的电力机车谐波电流估计
2) harmonic currents
谐波电流
1.
A filter for reducing harmonic currents in stator windings of 6-phase induction motor;
六相异步电机定子谐波电流抑制的滤波器研究
2.
Based on the instantaneous reactive power theory, two groups of three-phase unit symmetrical rotating reference phasors with same frequency as that of power grid voltage is built and a novel approach to accurately detect harmonic currents by use of active power filter (APF) is proposed.
基于瞬时无功功率理论,建立了一个与电网电压同频率的单位对称基准旋转相量,提出了一种运用APF精确检测谐波电流的方法。
3.
To eliminate the influence of AC side harmonic currents, a certain capacity of AC filters is installed correspondently, and the cost of them amount to 10% percent of a HVDC project cost, which is very important to the performance and cost of HVDC project.
为给直流输电工程中交流滤波器设计提供谐波电流源,提出了交流侧特征谐波电流时域分段算法。
3) current harmonic
电流谐波
1.
Suppression technology of input current harmonic and conducted electro-magnetic emission for arc welding equipment
弧焊设备网侧电流谐波和传导发射的抑制技术
2.
These current harmonics exists in any nonzero speed and are independent of time-varying parameters,such as stator winding resistance.
基于电流谐波频谱分析的无速度传感器速度辨识方法提高了速度辨识性能,尤其是在低频情况下,这种速度辨识方法优点更为突出。
3.
This paper presents the current harmonic analysis of a high frequency model of AC/DC voltage source converter using PWM with phase and amplitude control.
从幅相控制的观点出发 ,用Fourier级数分析方法对变流器的高频模型进行了电流谐波分析。
4) current harmonics
电流谐波
1.
Analysis of input current harmonics of welding inverter and its solving method
逆变焊接电源输入电流谐波分析及其解决措施
2.
It presents the method of adopting shunt passive filters to solve current harmonics,and measures of modifying power supply modes and limiting voltage flickers.
根据江苏宿迁开发区变电所35kV系统谐波源用户的具体情况,以实测数据为依据,在分析计算的基础上查找出谐波超标原因,提出了采用并联无源滤波器的方式解决电流谐波问题,采取改造供电方式和隔离措施限制电压闪变问题的方案,取得了良好的实效。
3.
The basic conception and the relationship of power factor, current harmonics and EMI for SCR(Silicon Controlled Rectifier) and SMR(Switch Mode Rectifier) at different stage are described.
本文对不同应用阶段的可控硅相控整流器,高频开关型整流器中功率因数、电流谐波、电磁兼容性等指标的基本概念及其相关性做了阐述。
5) harmonic current
电流谐波
1.
A method of using several rectifiers is proposed to suppress harmonic current.
提出以多整流器供电来抑制电流谐波，并以４台整流器向１台直流电动机供电为例进行了实验研究，结果表明，该方法与其它方法相比，具有在大的调速范围内特别是深调速时抑制电流谐波效果好的优点。
6) current distortions
电流谐波
1.
c bus is higher,and the current distortions and torque ripples are lower,compared with those of established sinusoidal pulse width modulation(S.
从电机的基本理论出发,介绍了空间矢量的基本原理,在此原理的基础上,提出了一种简单的空间矢量脉宽调制(SVPWM)方法,该算法基于复平面中的开关矢量,计算量适中,实时性好,与现有的正弦脉宽调制(SPWM)相比,有母线电压利用率高,逆变器输出电流谐波小,电机转矩脉动小等优点。
2.
Thus the current distortions and torque ripples are lo.
计算量适中,实时性好,逆变器输出电流谐波小,电机转矩脉动小。
补充资料：谐波电流
谐波电流
harmonic current
州e匕od旧n}}u谐波电流(h armoniC Current)将非正弦周期性电流函数按傅里叶级数展开时，、其频率为原周期电流频率整数倍的各正弦分量的统称。频率等于原周期电流频率k倍的谐波电流称为k次谐波电流，k大于1的各谐波电流也统称为高次谐波电流。(见非正弦周期电流电路)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条