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Description: This paper presents various applications of a nonlinear
adaptive notch filter which operates based on the concept
of an enhanced phase-locked loop (PLL). Applications of the filter
for online signal analysis for power systems protection, control and
power quality enhancement are presented. The proposed scheme
can be applied for signal analysis both under stationary and nonstationary
conditions. Based on digital time-domain simulations,
applications of the filter for a) sinusoidal waveform peak detection,
b) harmonic identification/detection, c) detection/extraction
of individual components of a signal, d) instantaneous reactive
current extraction, e) disturbance detection, f) noise reduction in
zero-crossings detection, and g) amplitude (phase) demodulation
for flicker estimation, are presented.
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Size: 153503 |
Author: yangyansky |
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Description: 有源滤波器检测算法的MATLAB程序，应用DQ0 算法，电流源加的是5 次谐波-active filter detection algorithm in MATLAB, application DQ0 algorithm increases the current source is the 5th harmonic
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Size: 1024 |
Author: 王晓光 |
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Description: 有源滤波器（APF）matlab_simulink仿真图的子图之一。算法是DQ0 算法。-active filter (APF) matlab_simulink simulation map one of the graph. The algorithm is DQ0 algorithm.
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Size: 5120 |
Author: 王晓光 |
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Description: 高次谐波严重危害电网的安全运行，因此必须采取有力措施，使谐波量限制在一定范围内，本文介绍如何在实际工作中提高滤波器的质量-high harmonics seriously endanger the safe operation of power grids, it is necessary to take effective measures, Harmonic so limited in a certain range, the paper how in practical work to improve the quality filter
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Size: 322560 |
Author: 12313 |
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Description: Knowledge of the process noise covariance matrix
is essential for the application of Kalman filtering. However,
it is usually a difficult task to obtain an explicit expression of
for large time varying systems. This paper looks at an adaptive
Kalman filter method for dynamic harmonic state estimation and
harmonic injection tracking.-Knowledge of the process noise covariance matrix is essential for the application of Kalm an filtering. However, it is usually a difficult task to obtain an expli cit for large expression of time varying system s. This paper looks at an adaptive Kalman filter method for dynamic estimation a harmonic state nd harmonic injection tracking.
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Size: 419840 |
Author: rifer |
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Description: 利用IIR滤波器设计一个低通滤波器，能够分析到电力系统中的三次谐波，要求满足如下指标：截止频率150HZ，阻带衰减≥30db-IIR filter design using a low-pass filter, to analyze the power system in the third harmonic, the requirements to meet the following indicators: cut-off frequency 150HZ, stopband attenuation ≥ 30db
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Size: 1024 |
Author: dicunxia |
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Description: 三相PWM叠加三次谐波控制Simulink仿真，另加一滤波器观看PWM经过低通滤波后的波形，适合电力电子初学者-Superposition of three harmonic three-phase PWM control Simulink simulation, plus a watch PWM filter through after the low-pass wave filter for power electronics for beginners
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Size: 9216 |
Author: 阿泥 |
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Description: this file contains the implementation of :
1.geometric filter-using the basic for loops to obtain geometric mean.
2.harmonic filter-using the basic for loops to obtain harmonic mean.
3.positive order contraharmonic filter for the removal of particularly added PEPPER NOISE.-this file contains the implementation of :
1.geometric filter-using the basic for loops to obtain geometric mean.
2.harmonic filter-using the basic for loops to obtain harmonic mean.
3.positive order contraharmonic filter for the removal of particularly added PEPPER NOISE.
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Size: 1024 |
Author: saumya |
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Description: 基于谐波电流快速检测方法的有源电力滤波器simulink仿真模型
-Current rapid detection methods based on harmonic active power filter simulink simulation model
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Size: 14336 |
Author: 流沙 |
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Description: simulink系统仿真：10kV 母线短路容量为10MVA，通过额定电压10/0.4kV，额定容量为100kVA，短路阻抗为5％的变压器与负荷相连， 阻感负荷RL 容量为50kVA，功率因数0.9。电力电子装置产生的5 次和7 次谐波电流均为5A；为了抑制7 次谐波在400V 母线处接入电容与变压器构成7 次滤波器。-simulink System Simulation: 10kV busbar short-circuit capacity of 10MVA, through the rated voltage 10/0.4kV, the rated capacity of 100kVA, short-circuit impedance of 5 of the transformer and load connected to sense the load resistance RL capacity 50kVA, power factor of 0.9. Generated by power electronic devices 5 and 7 harmonic currents are 5A to suppress harmonics in the 400V bus 7 access to capacitors and transformers constitute at 7 filter.
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Size: 10240 |
Author: othanda |
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Description: matlab code to harmonic filter design
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Size: 2048 |
Author: jrubens |
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Description: 谐波小波滤波再加上随机减量，谐波小波相当于带通滤波器，效果很好-Coupled random harmonic wavelet filter reduction, harmonic wavelet is equivalent to band-pass filter, the effect is very good
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Size: 1024 |
Author: xiaodong |
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Description: harmonic filter active
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Size: 15360 |
Author: NF |
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Description: 我学习信号系统时原创的用matlab实现的谐波提取 ，两种方案，先分频再提基波，或者利用带通滤波器-I study the signal system to achieve an original harmonic extraction using matlab, the two programs, the first frequency and then Ti Jibo, or the use of band-pass filter
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Size: 3072 |
Author: 刘庭薇 |
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Description: Abstract—In this paper a current reference generation
method for a voltage source shunt active power filter is
examined. The proposed method improves the harmonic
filtering by compensating the delays in the system. In
stationary operating point of the load the method uses
measurement data sampled in previous periods to generate a
reference prediction. Since in transient state of the load the
prediction no longer holds true, a computational control delay
compensation algorithm is used in the reference generation
instead of the prediction in this situation. Changing the
algorithm according to the operating point guarantees effective
harmonic compensation in all operating points. In this paper
the system performance is examined with an active filter
simulation model.
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Size: 274432 |
Author: yasser |
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Description: document describes active filter for power factor correction and harmonic filtering
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Size: 410624 |
Author: yuan |
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Description: 基于pq谐波电流检测的三相三线制有源滤波器模型。-Pq harmonic current detection based on three-phase three-wire active filter model.
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Size: 20480 |
Author: Qiu lin |
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Description: 共包含四个文件：
hamo_packet.m 谐波小波包子程序，输入参数为原信号序列，采频，分解层数，返回三维数组，存储各层各频带分解结果；
harmopacktest.m 检验上述子程序可行性的m文件；
harmonic wavelet analysis.pdf Newland关于谐波小波的原始论文；
20130329谐波滤波.docx 内附matlab程序和分析结果。对电机电流信号做了谐波小波分解，分别从时域和频域构造谐波小波，结果显示，频域构造的小波光滑性稍差。-Contains four files: hamo_packet.m harmonic wavelet buns procedures, input parameters as the original signal sequence mining frequency decomposition level, return to the three-dimensional array, storage layers each band decomposition results harmopacktest.m test subroutine feasibility m-file harmonic wavelet analysis.pdf Newland original papers on harmonic wavelet 20,130,329 harmonic filter the. docx included matlab program and analysis of the results. Harmonic wavelet decomposition of the motor current signal, respectively, from the time domain and frequency domain construct harmonic wavelet, the results show that wavelet smoothing a less frequency-domain structure.
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Size: 443392 |
Author: 李民民 |
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Description: 5TH HARMONIC FILTER
PSCAD
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Size: 2048 |
Author: John Smith |
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Description: In this paper, an efficient active power filter (APF) scheme is developed to estimate and compensate for harmonic distortion in an electrical power network. The developed APF control scheme is based on a double proportional feedback controller and a single-phase voltage-source half-wave bridge inverter. The proposed filter uses a Multi-layer Artificial Neural Network (MLANN) with a shift method for estimating system harmonic currents and voltages at a dedicated point. The proposed scheme is tested on a 13 bus industrial distribution system. The obtained results ensure the effectiveness of the proposed filter. The system is simulated in MATLAB-Simulink and simulation results prove that the polluting harmonics have been greatly reduced.
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Size: 1906688 |
Author: amir1 |
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