scholarly journals Experimental Validation of Single Phase Series Active Power Filter Using Fuzzy Control Technique

Author(s):  
Abdallah Alla Ben Abdelkader ◽  
Othmane Abdelkhalek ◽  
Ahmed Allali ◽  
Abdelmalek Meftouhi ◽  
Toufik Toumi

<p>The aim of this paper is illustrating and exposing the performance of a Series Active Power Filter (SAPF) with PI controller and Fuzzy controller within simulation and experimental validations. This performance is best manifested in compensating the sags and the swells voltages and in eliminating the harmonic voltage and regulate the terminal voltage of the load by injecting a voltage component in series with source voltage which is increased or decreased from the source voltage, hence, maintaining the load side waveforms as pure sinusoidal. The control method used in this work is not so complex and it is based on a phase locked loop (PLL) that is used to control the active filter. It is valid only in the phase system. The efficiency of the method I suggested is affirmed through simulation results by MATLAB\Simulink® and some prototypes experiments. These results shows the capability of the proposed prototypes</p>

2019 ◽  
Vol 9 (16) ◽  
pp. 3383 ◽  
Author(s):  
Fei ◽  
Wang ◽  
Cao

An adaptive fractional-order fuzzy control method for a three-phase active power filter (APF) using a backstepping and sliding mode controller is developed for the purpose of compensating harmonic current and stabilizing the DC voltage quickly. The dynamic model of APF is changed to an analogical cascade system for the convenience of the backstepping strategy. Then a fractional-order sliding mode surface is designed and a fuzzy controller is proposed to approximate the unknown term in the controller, where parameters can be adjusted online. The simulation experiments are conducted and investigated using MATLAB/SIMULINK software package to verify the advantage of the proposed controller. Furthermore, the comparison study between the fractional-order controller and integer-order one is also conducted in order to demonstrate the better performance of the proposed controller in total harmonic distortion (THD), a significant index to evaluate the current quality in the smart grid.


2012 ◽  
Vol 12 (5) ◽  
pp. 800-812 ◽  
Author(s):  
MinhThuyen Chau ◽  
An Luo ◽  
Zhikang Shuai ◽  
Fujun Ma ◽  
Ning Xie ◽  
...  

2017 ◽  
Vol 2017 ◽  
pp. 1-6
Author(s):  
Xin Li ◽  
Bo Li

In this paper, a novel decoupling control method based on generalized inverse system is presented to solve the problem of SHAPF (Shunt Hybrid Active Power Filter) possessing the characteristics of 2-input-2-output nonlinearity and strong coupling. Based on the analysis of operation principle, the mathematical model of SHAPF is firstly built, which is verified to be invertible using interactor algorithm; then the generalized inverse system of SHAPF is obtained to connect in series with the original system so that the composite system is decoupled under the generalized inverse system theory. The PI additional controller is finally designed to control the decoupled 1-order pseudolinear system to make it possible to adjust the performance of the subsystem. The simulation results demonstrated by MATLAB show that the presented generalized inverse system strategy can realise the dynamic decoupling of SHAPF. And the control system has fine dynamic and static performance.


2012 ◽  
Vol 433-440 ◽  
pp. 3241-3246
Author(s):  
Ya Jun Rong ◽  
Ji Wei Yuan ◽  
Jie Dong ◽  
Han Lu Shangguan

This paper analyzes the control principle of DC-side voltage from the aspect of instantaneous conversation of energy of active power filter, On the basis of these, to deal with the weakness of larger static error and overshoot about PI control method, a combined controller constituted PI controller and fuzzy controller is proposed. This method combines the merits of PI control and fuzzy control, and has some advantage of small overshoot, fast responses and small static errors. The Matlab simu1ation results show that the proposed method is valid and feasible.


2014 ◽  
Vol 2 (1) ◽  
pp. 15-21
Author(s):  
Appikonda Mohan ◽  
◽  
Naveen Bolisetti ◽  
Chiranjeevi Tirumalasetty ◽  
Mothiram Bhukya ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1951
Author(s):  
Mihaela Popescu ◽  
Alexandru Bitoleanu ◽  
Mihaita Linca ◽  
Constantin Vlad Suru

This paper presents the use of a three-phase four-wire shunt active power filter to improve the power quality in the Department of Industrial Electronics of a large enterprise from Romania. The specificity is given by the predominant existence of single-phase consumers (such as personal computers, printers, lighting and AC equipment). In order to identify the power quality indicators and ways to improve them, an A-class analyzer was used to record the electrical quantities and energy parameters in the point of common coupling (PCC) with the nonlinear loads for 27 h. The analysis shows that, in order to improve the power quality in PCC, three goals must be achieved: the compensation of the distortion power, the compensation of the reactive power and the compensation of the load unbalance. By using the conceived three-leg shunt active power filter, controlled through the indirect current control method in an original variant, the power quality at the supply side is very much improved. In the proposed control algorithm, the prescribed active current is obtained as a sum of the loss current provided by the DC voltage and the equivalent active current of the unbalanced load. The performance associated with each objective of the compensation is presented and analyzed. The results show that all the power quality indicators meet the specific standards and regulations and prove the validity of the proposed solution.


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