scholarly journals Sliding mode controller for four leg shunt active power filter to eliminating zero sequence current, compensating harmonics and reactive power with fixed switching frequency

2015 ◽  
Vol 12 (2) ◽  
pp. 205-218
Author(s):  
Ali Chebabhi ◽  
Mohammed-Karim Fellah ◽  
Mohamed-Fouad Benkhoris ◽  
Abdelhalim Kessal
Keyword(s):  
Reactive Power ◽  
Sliding Mode ◽  
Active Power Filter ◽  
Active Power ◽  
Switching Frequency ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Harmonic Currents ◽  
Three Phase ◽  
Zero Sequence

In this paper, the four leg inverter controlled by the three dimensional space vector modulation (3D SVM) is used as the shunt active power filter (SAPF) for compensating the three phase four wire electrical network, by using the four leg inverter with 3D SVM advantages to eliminated zero sequence current, fixed switching frequency of inverter switches, and reduced switching losses. This four leg inverter is employed as shunt active power filter to minimizing harmonic currents, reducing magnitude of neutral wire current, eliminating zero sequence current caused by nonlinear single phase loads and compensating reactive power, and a nonlinear sliding mode control technique (SMC) is proposed for harmonic currents and DC bus voltage control to improve the performances of the three phase four wire four leg shunt active power filter based on Synchronous Reference Frame (SRF) theory in the dq0 axes, and to decoupling the four leg SAPF mathematical model.

scholarly journals Modeling and Control Design Based on Petri Nets Tool for a Serial Three-Phase Five-Level Multicellular Inverter Used as a Shunt Active Power Filter

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5335
Author(s):  
Sana Othman ◽  
Mohamad Alaaeddin Alali ◽  
Lassaad Sbita ◽  
Jean-Pierre Barbot ◽  
Malek Ghanes
Keyword(s):  
Petri Nets ◽  
Reactive Power ◽  
Low Voltage ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Switching Frequency ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Three Phase

In this work, we represent a shunt active power filter (SAPF) based on a serial three-phase flying capacitor multilevel inverter (FCMI) controlled by a Petri Nets representation (PNs). This structure is chosen for its significant performances. In fact, the use of the FCMI within the SAPF makes it possible to increase the apparent switching frequency of the structure in order to reduce the value then the volume and weight of the inductance of the output filter. Besides, the FCMI allows the synthesis of a high-voltage signal using low-voltage semiconductor components. Therefore, improving the reliability of this structure leads to the improvement of the dynamics of the SAPF. This paper deals with a new control methodology based on PNs to regulate the flying capacitor voltages and the reference currents issued by the instantaneous active and reactive power theory. Compared to a conventional SAPF composed by a classical two-level inverter and controlled by a simple PWM control, simulation results demonstrate that our proposed control enhances the dynamic system and the power quality by reducing the total harmonic distortion (THD) satisfying the limits of IEEE standards.

scholarly journals Three Level Hysteresis Function based Sliding Mode Control of Three Phase PWM Inverter for Shunt Active Power Filter Application in Distribution Network

2019 ◽  
Vol 8 (3) ◽  
pp. 8015-8019
Keyword(s):  
Sliding Mode Control ◽  
Sliding Mode ◽  
Distribution Network ◽  
Active Power Filter ◽  
Active Power ◽  
Switching Frequency ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Mode Control ◽  
Three Phase

In this paper, a Three-Level Hysteresis based Sliding (TLHSM) function approach to regulate output currents of three-phase capacitor powered Voltage Source Inverter (VSI) is analyzed and implemented. VSI functions as shunt active power filter to compensate for harmonic currents generated by a nonlinear load in the power distribution network. The performance of the control is compared with conventional two-level hysteresis-based control through simulation in MATLAB/Simulink. Sliding Mode Control (SMC) is recognized as robust controller with a high stability over a wide range of load and source variations. The set-back of unfixed switching frequency problem with conventional two-level hysteresis control is disregarded in this approach. Switching frequency prediction is observed to be accurate. The tracking error and Total Harmonic Distortion (THD) in source currents are the measurable parameters for evaluation of control effort and is within the limits specified by IEEE519:2014 recommendations.

scholarly journals Hysteresis Control for Shunt Active Power Filter under Unbalanced Three-Phase Load Conditions

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Z. Chelli ◽  
R. Toufouti ◽  
A. Omeiri ◽  
S. Saad
Keyword(s):  
Reactive Power ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Harmonic Suppression ◽  
Nonlinear Loads ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Three Phase ◽  
Control Scheme

This paper focuses on a four-wire shunt active power filter (APF) control scheme proposed to improve the performance of the APF. This filter is used to compensate harmonic distortion in three-phase four-wire systems. Several harmonic suppression techniques have been widely proposed and applied to minimize harmonic effects. The proposed control scheme can compensate harmonics and reactive power of the nonlinear loads simultaneously. This approach is compared to the conventional shunt APF reference compensation strategy. The developed algorithm is validated by simulation tests using MATLAB Simulink. The obtained results have demonstrated the effectiveness of the proposed scheme and confirmed the theoretical developments for balanced and unbalanced nonlinear loads.

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