谐波电流

一种基于MATLAB的谐波电流检测方法的仿真研究

The Simulation of Harmonic Current Detection Based On Matlab

众所周知，AC交流电源的供电系统在应用过程中便会引入谐波电流。

Power supplies connected to AC mains introduce harmonic currents in the utility .

基于ANN的谐波电流检测分析方法

An Approach for Harmonics Detection and Analysis Based on ANN Theory

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。

PWM inverter AC motor bring the harmonic current , It pollute electric power systems .

LC滤波的三相桥式整流谐波电流的计算方法

A Method for Calculating Harmonic Current in Three-phase Bridge Rectifier with LC Filter

PWM变频器供电的异步电动机稳态损耗与谐波电流计算模型

A Motor Model for Calculating Steady Loss and Harmonic Current of Induction Motor Powered by PWM Converter

基于空心线圈的HVDC谐波电流测量及性能分析

Air Core Coil Based Harmonic Current Measurement in HVDC and Its Performance Analysis

用PLL产生参考电压的自适应谐波电流检测方法

An Adaptive Harmonic Current Calculation Arithmetic for APF Using PLL-Produced Reference Voltage

三相PFC电路的交流侧输入电感谐波电流注入方案

Current injection of AC side inductor for three-phase PFC circuit

介绍了逆变器谐波电流均方根值最小的脉宽调制（PWM）。

This paper introduces the pulse wide modulation ( PWM ) based on minimum root-mean-square value of harmonic current of inverter .

APF谐波电流检测的积分法与低通滤波法的比较研究

Comparison Research on Integral Method and Low Pass Filter Method of Harmonic Current Detection for APF

而APF所采用的谐波电流检测方法，直接决定了谐波的检测精度和跟踪速度，是决定谐波补偿特性的关键。

An accurate and real-time detecting approach is critical for APF to accurately compensate harmonic currents .

该系统是集光纤技术、电子技术、USB通信技术为一体新型谐波电流测量系统。

The system was an integral whole new model harmonic electric current measurement system gather the fibre-optical technology , electron technology and USB communication .

针对并联混合型滤波器传统的基于谐波电流的控制方法中，K值较大时系统不稳定的情况，提出了谐波电压的控制方法，该方法避免了K的取值问题。

In order to avoid the system instability resulted by the big proportional coefficient in the control of hybrid-shunt active power filter , a new control method is provided .

Kaiser窗在谐波电流检测中的应用

Application of kaisers window in harmonic current detection

由Delta逆变器构成的串并联补偿式UPS较之传统的UPS具有能量浪费少，谐波电流小，能源利用率高的特点。

The series-parallel compensation UPS which is composed of delta inverter has the feature just as low energy consumption , small harmonic current , and high energy availability .

为抑制谐波电流，一个行之有效的办法就是在电气设备中加入功率因数校正（PFC）电路。

In order to restrict the current harmonic , power factor correction ( PFC ) circuit is often used in the electronic equipments .

提出了一种改进的dq检测法，它能检测出三相不对称系统的任意次谐波电流。

A new detection algorithm for random harmonic current in three-phase unbalanced system based on d-q transformation is presented .

分析指出，ip-iq谐波电流检测方法坐标变换过程中，C变换矩阵的频率偏差对检测结果不构成影响。

It is concluded that the detection results will not be influenced by frequency offset in the C matrix transformation process of i_p-i_q harmonic current detecting method .

在MATLAB环境下，得到仿真结果为：滑窗迭代的DFT检测出的指定次谐波电流，和瞬时无功功率理论检测出的无功电流和谐波电流。

In MATLAB programming , the selected harmonics have been detected by smooth window iterative DFT , and reactive current and harmonic have been detected in time by instantaneous reactive power theory .

论文将谐波电流检测方法和SVPWM控制策略相结合构成有源电力滤波系统，并进行了数字仿真实验。

Further combining the above harmonic current detection method and SVPWM control strategy to compose active power filter system , and carry out overall numerical simulation .

提出利用Laguerre多项式的逼近函数进行电力机车谐波电流估计。

A method is presented to assess the harmonic current of electric locomotives using the approaching function of Laguerre polynomials .

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。

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

针对自适应谐波电流检测方法收敛速度与稳态精度需折中考虑的问题，采用单相并联有源电力滤波器（APF）作为硬件平台。

The single-phase shunt APF is taken as the hardware platform in studying the balance between convergence speed and steady state accuracy of adaptive harmonic current detection algorithm .

25W以下紧凑型荧光灯的谐波电流对策研究

Study on Harmonic Current of Compact Fluorescent Lamp Below 25W

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 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 .

然后根据已有的谐波电流检测方法的特点，从而确定了基于电流平均值的谐波电流检测方法，并且采用MATLAB中相应模块对谐波电流检测方法进行仿真。

Secondly , the harmonic current detection method is determined based on the current average according to the characteristics of the existed harmonic current detection method . And the harmonic current detection method is simulated by the corresponding module in MATLAB .

设计了由上层控制器进行协调控制的APF投切控制策略，保证能根据实际负荷谐波电流投切APF。

The control strategy for APFs ' switching coordinated by upper controller is designed , which can ensure APFs switch according to actual load harmonic currents and impact slightly to system .

在对现有并联型有源滤波器（SAPF）原理分析的基础上，提出了一种谐波电流快速检测方法。

Based on analyzing the theory of shunt APF , a method of harmonic current quick detecting is presented .

一种新的变步长MLMS谐波电流检测法

Novel Variable Step-size MLMS Algorithm of Harmonic Current Detection