A predictive current control method for shunt active filter with windowing based wavelet transform in harmonic detection

2009 ◽  
Vol 17 (5) ◽  
pp. 883-896 ◽  
Author(s):  
K.G. Firouzjah ◽  
A. Sheikholeslami ◽  
M.R. Karami-Mollaei ◽  
F. Heydari
Keyword(s):  
Wavelet Transform ◽  
Control Method ◽  
Active Filter ◽  
Current Control ◽  
Harmonic Detection ◽  
Shunt Active Filter

New Method to Harmonic Isolation Based on High Selectivity Filter to Control of Shunt Active Filter with Experimental Validation Using DSPACE System

2014 ◽  
Vol 666 ◽  
pp. 53-58
Author(s):  
Mohamed Muftah Saleem
Keyword(s):  
High Selectivity ◽  
Control Method ◽  
Active Filter ◽  
Current Control ◽  
Control Technique ◽  
Harmonic Compensation ◽  
Shunt Active Filter ◽  
Active Power Filters ◽  
Power Filters ◽  
Current Controller

This paper presents a new control method of a parallel active power filters based on improved harmonic isolation with hardware implementation. The harmonic isolator is based on High Selectivity Filters (it can be tuned at any frequency) and the current control technique consists in a modulated hysteresis current controller. This active filter is intended for harmonic compensation of a diode rectifier feeding a RL load. The study of the active filter control is divided in two parts. The first part deals with the harmonic isolator which generates the harmonic reference currents and is implemented into a DSPACE DS1104 prototyping card. The second part focuses on the generation of the switching pattern of the IGBTs of the inverter by the modulated hysteresis current controller, implemented into an analogue card. The use of High Selectivity Filters instead of classical extraction filters allows extracting directly the voltage and current fundamental components in the α-β axis at high performances. The effectiveness of the new proposed method is verified by computer simulation and by experimental study.

scholarly journals Improving Power Quality and Mitigation of Harmonic Distortion Impact at Photovoltaic Electric Vehicle Charging System

2021 ◽  
Vol 5 (1) ◽  
pp. 25-32
Author(s):  
Adel Elgammal ◽  
Curtis Boodoo
Keyword(s):  
Electric Vehicle ◽  
Power Quality ◽  
Fuzzy Logic Controller ◽  
Harmonic Distortion ◽  
Active Filter ◽  
Current Control ◽  
Shunt Active Filter ◽  
Electric Cars ◽  
Charging System ◽  
High Penetration

This article offers a clear and realistic design for an active power filter to increase reliability and power quality of the photovoltaic charging system and a high-penetration electric vehicle distribution system. The MOPSO algorithm is used as the basis for problems with optimization and filter tuning. A typical regular load curve is used to model the warped power grid over a 24-hour cycle to estimate the total harmonic distortion (THD). For structures with high penetration of electric cars, the probability of minimizing THD (for example to five percent) is explored via optimum capacity active shunt filters and shunt capacitors. To maximize general performance of the charging system, the switching systems are re-scheduled. Moreover, to increase the current control accuracy of shunt active filter, the fuzzy logic controller is utilized. The major drawback to new system is that it would have unrestricted billing for entire day to cope with voltage interruption. In MATLAB / SIMULINK, detailed machine setup and control algorithm experiments are simulated. The simulation findings confirm the efficiency and viability of projected shunt active filter to enhance voltage profile and track power performance of photovoltaic charging system.

Study on Injection Type Hybrid Active Filter with Predictive Current Control

2012 ◽  
Vol 462 ◽  
pp. 727-731
Author(s):  
Xiao Dong Zhai ◽  
Chen Zhao ◽  
Mo Wang ◽  
Hong Wen Qian ◽  
Hu Sun
Keyword(s):  
Predictive Control ◽  
Control Method ◽  
Pso Algorithm ◽  
Active Filter ◽  
Current Control ◽  
Particle Swarm Optimizer ◽  
Static Performance ◽  
Injection Type ◽  
Dc Voltage Control ◽  
One Step

In this paper, the mathematical model of injection type hybrid active filter is established, then the current one-step predictive control is introduced with model predictive control (MPC) technology. PI controller is used in DC voltage control and its parameter is gotten by particle swarm optimizer (PSO) algorithm. Finally, the simulation model of IHAPF is established in MATLAB/SIMULINK, and the control method presented in this paper has better dynamic and static performance which is verified by the simulation results.

scholarly journals Performance Investigation of Grid-Connected DFIG using Integrated Shunt Active Filtering Capabilities

2020 ◽  
Vol 184 ◽  
pp. 01041
Author(s):  
Krishna S. Patel ◽  
Vijay H. Makwana
Keyword(s):  
Pulse Width Modulation ◽  
Reactive Power ◽  
Active Filter ◽  
Current Control ◽  
Control Technique ◽  
Nonlinear Load ◽  
Shunt Active Filter ◽  
Grid Current ◽  
Wind Speeds ◽  
Active Filtering

This paper presents the modified grid side converter control (GSC) technique which enable the GSC to work as a shunt active filter to mitigate the grid current harmonics produced by the nonlinear load, as well as to transfer power from the grid to the rotor of doubly fed induction generator (DFIG) or vice versa. The main contribution of this proposed technique is an addition of a shunt active filter with space vector pulse width modulation (SVPWM) controller in GSC control itself in order to achieve a better grid current %THD profile, and simultaneously to control active power for variable wind speed. The reactive power supply to the DFIG and extraction of maximum power is achieved using RSC. The comparison of the modified GSC control technique using hysteresis current control (HCC), and SVPWM controller used to mitigate the harmonics is presented with different wind speeds. The proposed modified GSC control technique is simulated for grid-connected 2.6 MW DFIG based wind energy conversion system (WECS) in MATLAB Simulink environment.

Sign in / Sign up

Export Citation Format

Share Document