phase current

Integrated intelligent control scheme for three-phase current balance in electric heating fore well

电热前床三相电流平衡智能集成控制策略

KIWA synthetic power saver with his unique structure form eliminates higher harmonic of the electrical network by way of the balance in adjusting three-phase current and voltage.

KIWA综合节电装置以其独特结构形式，通过调整三相电流和电压的平衡，消除电网高次谐波。

Three-Phase Current-Fed Z-Source AC-AC Converter

三相电流型Z源交流-交流变流器电路

With the development of the technology of superconducting and power electronics, three-phase current source converter remains its dominant status in superconducting magnetic energy storage field.

随着超导技术和电力电子技术的发展，三相电流源型变流器（CSC）在超导储能领域依然占有主导地位。

Experiments show that the motor phase current controlled by this kind of SPWM inverter can be strictly sinusoidal and the running of the motor can remain steady for the ultra low speed range.

实验结果表明，这种SPWM逆变器控制的电机相电流严格正弦，能在超低速下平稳运行。

A large number of EAF generated high-order harmonic, APF inject to grid with amplitude equal and the opposite phase current harmonic the power with controllable power semiconductor devices.

电弧炉正常工作时产生大量高次谐波，APF即利用可控的功率半导体器件向电网注入与谐波源电流幅值相等、相位相反的电流，使电源的总谐波电流为零，达到实时补偿谐波电流的目的。

A mathematical morphology ( MM) detection method based on αβ and dq transformation is proposed to detect three-phase current harmonic components.

在对电流信号进行αβ变换和dq变换的基础上，利用数学形态滤波器良好的低通滤波特性，提出了一种基于数学形态学的谐波电流检测方法。

This paper analyses the internal overvoltage and the phase current of grounded wye shunt capacitor bank when there are failures in it, and gives corresponding equations.

分析了中性点接地电容器组内部故障时的内部过电压和相电流变化，并给出了相应计算公式。

Through measuring three-phase current of low voltage at user side and handling by specific algorithm, TA ratio of HV measuring can be accurately judged whether is consistent with data plate.

通过测量用户低压侧三相电流相量，通过特定的算法处理，准确判定用户高计TA的实际变比是否与铭牌一致。

Further more, a detailed comparative study of two-level system and three-level system is conducted. The simulation results, three-phase current waveforms, the electromagnetic torque waveform are given.

并且与两电平系统从三相电流波形、电磁转矩波形进行了详细的对比分析，分析发现采用三电平变流器后，电流的谐波明显减少，更加接近正弦波，电磁转矩脉动得到改善。

Three-phase current should be used for large motors.

大型电机应该使用三相电流。

This paper states a detecting method for defect of three-phase current motor and it also introduces the experimental analysis result and practice utilization condition of this detecting method.

本文阐述了对三相交流电动机故障的一种检测方法，并介绍了该检测方法的实验分析及现场应用情况。

The neutral-point voltage fluctuation of three-level converter is only related to applied modulation method and three-phase current.

三电平变流器的中点电压波动只与变流器采用的调制技术和三相电流有关。

Calculation of phase current and electromagnetic force based on nonlinear inductance model of SRM

基于SRM非线性电感模型相电流和电磁力的解析计算

According to the requirements of high speed punching machining, a new drive manner for a stepping motor, which is run under high voltage constant phase current chopping wave and low voltage locking is put forward and designed.

根据高速冲压加工的要求，本文提出了一种新型的步进电机驱动方式&高压斩波恒流运行、低压锁定驱动，并设计研制了该驱动电路。

Cause Analysis and Fault Measures of Three Phase Current Unbalance at GIS in Jiangling Convert Station

江陵换流站GIS串内三相电流不平衡的原因分析及故障处理

Electrified measuring of MOA using three-phase current method

基于三相电流法的金属氧化物避雷器带电测量研究

Calculation for Twist Vibration Responses of Turbine-Generator Set on Excitation of The Transient Three-Phase Current& Voltage Process

汽轮发电机组对瞬态三相电流电压历程激励的扭振响应计算

A pulsating torque component can be compensated by inject a selected harmonic component to the phase current.

消除转矩脉动可以通过对定子电流加入谐波的方式完成。

The device has considered its practical functions, which include Chinese character parameter, waveform display for three-phase current, fixed value and retain of failure information.

装置考虑了实用功能设计。具有汉字参数、三相电流波形显示，整定值、故障信息的保留等功能。

Measuring method of ratio braking characteristic curve on differential protection for impedance-matching balance transformer with three-phase current power supply

用三相电流源测试阻抗匹配平衡变压器差动保护比率特性曲线的方法

Unbalance Analysis for Three Phase Current in Power Ling Caused by Incomplete Transposition

不完全换位引起的输电线路三相电流不平衡分析

A new three-phase current source rectifier ( CSR) topology and its multi-bridge parallel technique are studied in the paper.

研究了一种新的三相电流型PWM整流器（CSR）的拓扑结构及其多桥并联技术。

Method to three-phase current reconstruction of PMSM compressor

一种永磁同步压缩机三相电流重构方法

Study on Phase Current Differential Protection for HV Transmission Line

高压相电流纵差保护的研究

Analysis of Couples in the Three-phase Current About Smelting Furnace Making MgO

电熔镁炉相间电流耦合关系的分析

Three-phase current measurement in power system based on GMR

基于巨磁阻的电力系统三相电流测量及其应用

Detection for Defect of Three-phase Current Motor

三相交流电动机故障的检测

At low speeds the phase current has to be constrained to protect the electronics because of the high available Volt-seconds.

以低速度阶段潮流必须被压抑保护电子由于高可利用的伏特秒钟。

Study on Phase Current's Mathematics Model of Change-magnetic Pole DC Machine

变磁极性直流电机相电流数学模型研究