This paper mainly deal with harmonic current detecting approaches.
本论文重点研究了谐波电流检测方法。
PWM inverter AC motor bring the harmonic current, It pollute electric power systems.
PWM逆变器驱动电机时，对电源端产生谐波电流，给电力电网造成污染。
The method also can be used for detecting the harmonic current under the balanced grid.
该方法也适用于电网平衡时的谐波电流检测。
This paper mainly deals with the design of APF based on harmonic current compensating approaches.
本论文重点研究了基于不同谐波电流补偿方法的滤波器的设计。
Chapter three mostly discusses the detection of neutral harmonic current and control strategy in two ways.
第三章主要讨论中性线谐波电流的检测和补偿控制策略两个方面。
An adaptive harmonic current detecting method based on the adaptive noise canceling technology is presented.
提出一种基于自适应噪声对消技术的谐波电流检测方法。
An adaptive harmonic current detecting method based on the adaptive noise canceling technology is researched.
文中首先介绍一种基于自适应噪声对消技术的自适应谐波电流检测方法。
Based on the method of moment, a new method to analyze the grounding grids fed by harmonic current is presented.
基于矩量法，提出了一种新的接地网频域性能分析的数值计算方法。
The experiment results indicate the system has the characteristics of high power factor and low harmonic current.
实验结果表明，该系统具有输出功率因数高，对电网谐波污染小等优点。
The experimental results are presented to show that the rotor losses are mainly caused by stator harmonic current.
实验结果表明电枢绕组谐波电流是产生该电机转子损耗的主要原因。
In a word, reactive power compensation and harmonic current restrain have become one of the most important problems.
总之，无功功率的补偿和谐波电流的抑制已经成为港口电气系统设计中最重要的问题之一。
But rectifier type power electronic components may produce harmonic current and make contact grid's current distorting.
用于整流的电力电子器件会产生谐波，造成接触网电流畸变。
This paper presents four-phase transmission harmonic current detecting method based on instantaneous reactive power theory.
该文提出了基于瞬时无功功率理论的四相输电谐波电流检测方法。
The principles of the adaptive noise canceling technology and the adaptive harmonic current detecting method are clarified.
阐述自适应噪声对消技术的原理和自适应检测原理。
Based on adaptive noise canceling principle, a realtime approach of detecting harmonic current by artificial neuron is proposed.
基于自适应噪声干扰对消原理，提出了用人工神经网络进行实时谐波检测的方法。
The power converters and other nonlinear loads "inject" the harmonic current into the power systems and cause a series of problems.
电力变流器和其他非线性负荷向电力系统“注入”谐波电流，引起一系列问题。
After SVC was put into operation, power quality problem caused by harmonic current, voltage fluctuation and flicker has been solved.
SVC投入运行后，对非线性负荷产生的谐波电流，电压波动及闪变等引起供电电能质量的问题起到了很好的治理效果。
Active Power Factor Correction to meet EMC limits for harmonic current emissions, and limitations of voltage fluctuations and flicker.
有源功率因数校正满足EMC的谐波电流的排放限制，以及满足电压波动和闪变的限制。
A formula of harmonic current amplitude for CSI PWM is derived in this paper. An objective function of pulsating torque is also derived.
本文推导出电流源逆变器(CSI)脉宽调制(PWM)谐波电流幅值表达式，脉动转矩目标函数。
An active power filter based on harmonic current compensation of the transformer is proposed for high voltage large capacity application.
提出一种新型的基于变压器谐波电流补偿的高压大容量有源电力滤波器。
In this paper, a simple and practical instantaneous harmonic current detecting method based on the phase distinguishing technology is introduced.
介绍了一种简单实用的基于鉴相原理的瞬时谐波电流检测方法。
With adaptive ability, harmonic current detecting approach, based on ANN, can accurately and real-timely detect harmonic currents for power network.
基于人工神经元自适应的谐波电流检测方法，能够准确、实时地检测电网中的谐波，且有一定的自适应能力。
The distribution of the harmonic current of electric locomotives in double traction feeders, which are shunted at their ends, is analyzed in the paper.
本文分析了电力机车谐波电流在一般复线末端并联供电牵引网中的分布。
Calculation results uncover the distribution order of power factor and harmonic current for 6k locomotive with the power factor compensator switched off.
通过计算，得到了未投入功率因数补偿装置时6K机车功率因数和谐波电流的分布规律。
The single-phase harmonic current components can also be detected by the method effectively through constructing a dummy symmetry three-phase power system.
通过构造一个虚拟的三相对称系统，该检测方法可以推广到单相电力系统的谐波电流检测。
The system is used in a combined power filter prototype, and experimental results verify the feasibility and correctness of the harmonic current detecting system.
将其应用于一台综合电力滤波器的样机，实验结果验证了综合电力滤波器谐波检测系统的可行性和正确性。
The simplified mathematic model of SS-8 type electric locomotive is established to analyze its harmonic features and to calculate and predict its harmonic current.
为了解ss 8型电力机车的谐波特性，建立了SS 8型电力机车的简化数学模型，并对谐波电流进行了计算和预测。
This paper researches a continuously tuned filter based on a continuously tunable reactor in order to compensate the detuning and limit excessive harmonic current.
本文研究了一种基于连续可调电抗器的交流连续可调滤波器，旨在克服调谐滤波器的上述缺点并解决谐波过流的问题。
It detects each harmonic current and generates the compensating current with the controlled current source, then it injects the current into the compensating winding.
它检测各次谐波电流并用可控电流源一一产生相对应的补偿电流注入各个补偿绕组。
Also, optimized SAPWM modulation wave has been utilized, improving the utility ratio of DC voltage and restraining effectively the output harmonic current of inverter.
并采用优化的SAPWM调制信号，提高了直流电压的利用率，并能有效地抑制逆变器输出的谐波电流。
应用推荐