scholarly journals Study of the operation of the output filter of a single-phase series active power filter

2021 ◽  
Vol 12 (1) ◽  
pp. 304
Author(s):  
Mihail Antchev ◽  
Vanjo Gourgoulitsov ◽  
Hristo Antchev
Keyword(s):  
Single Phase ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Switching Frequency ◽  
Power Filter ◽  
Simulation And Experiment ◽  
Output Capacitor ◽  
Output Filter ◽  
Filter Capacitor

In the article is presented a single-phase series active power filter (SFSAPF) designed to compensate the total harmonic distortion (THD) factor of the supply network voltage. Particular attention is paid to the work of the output capacitor of the passive filter, and dependencies for the design of the filter at hysteresis voltage control are presented. The value of the higher harmonics of the current through the filter capacitor is determined. A mathematical relationship between the voltage ripple of the capacitor, its value and the switching frequency is derived. As a result of the advanced research a methodology for designing the output filter of a single-phase serial active power filter has been proposed. The results from computer simulation and experiment are also given.

Real Time Harmonic Mitigation Using Fuzzy Based Highly Reliable Three Dual-Buck Full-Bridge APF for Dynamic Unbalanced Load

2018 ◽  
Vol 19 (3) ◽  
Author(s):  
Ranjeeta Patel ◽  
Anup Kumar Panda
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Dynamic Performance ◽  
Active Power Filter ◽  
Active Power ◽  
Voltage Source ◽  
Switching Frequency ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Inverter Circuit

Abstract This study presents a highly reliable 3-phase 4-wire, three dual-buck full-bridge shunt active power filter (3 DB FB APF) for distribution system. The proposed topology uses three single phase dual buck full bridge inverter sharing the same dc-link capacitor with high utilization of dc-bus voltage. The dual buck inverter circuit composed of one power switch and one diode leg instead of two power switches conventional inverter leg effectually eliminate the undesirable “shoot-through” phenomenon occurs in conventional inverter circuit. The fuzzy and adaptive hysteresis current controller based id-iq control strategy has been adopted to generate optimized switching frequency. For validation, the proposed topology is implemented in the OPAL-RT LAB using OP5142-Spartan 3 FPGA. The dynamic performance of the proposed 3 DB FB APF is assessed for sinusoidal, unbalanced and non-sinusoidal voltage source condition with unbalanced non-linear load that is when both three-phase and single-phase loads are present in the system. Besides, the results with proportional-integral (PI) controller are compared with FLC in terms of harmonic compensation. Furthermore, a comparison has been made between split capacitor dual buck half bridge active power filter (2C DB HB APF) and proposed 3 DB FB APF based on switch power rating.

scholarly journals Harmonic Reduction of Shunt Active Power Filter using SVPWM

2019 ◽  
Vol 8 (2S8) ◽  
pp. 1183-1188
Keyword(s):  
Reactive Power ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Fine Tuning ◽  
Switching Frequency ◽  
Nonlinear Loads ◽  
Large Power ◽  
Power Filter ◽  
Passive Filters

waveforms of voltage and current are distorted and requirement of reactive power increase due to developing use of non-linear and time-varying loads. Harmonic distortion is recognized to be sources of a number of problems, such as increase in power losses, unnecessary heating, harmonic resonances in the utility, communication obstruction, flash and clear noise, inaccurate operation of susceptible loads [1, 2]. Conventionally, LC tuned passive filters absorb generated vocal currents due to nonlinear loads. Their primary benefit is more reliability with reduced cost. However, passive filters have a number of demerits like which may be the source of harmonic interface with the utility system, in the existence of inflexible value of fine-tuning LC filter is necessary and could not meet the predetermined harmonic current restrictions [3, 4]. This gives the inspiration to the exploration of an active power filter methodology, which is sensibly viable, cost valuable and can gather the suggested standard for large power nonlinear loads. Due to the high rating and large switching-frequency constraint of the Pulse Width Modulation (PWM) inverters are used for high-power applications

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 THE INVESTIGATION OF SINUSOIDAL SINGLE PHASE VOLTAGE SOURCE INVERTER OUTPUT FILTER / IŠĖJIMO FILTRO TYRIMAS VIENFAZIO INVERTERIO SINUSINEI ĮTAMPAI FORMUOTI

2011 ◽  
Vol 3 (1) ◽  
pp. 68-72
Author(s):  
Andrius Platakis ◽  
Vytautas Bleizgys ◽  
Tadas Lipinskis
Keyword(s):  
Experimental Investigation ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Voltage Source ◽  
Phase Voltage ◽  
Voltage Source Inverter ◽  
Core Losses ◽  
Output Capacitor ◽  
Output Filter ◽  
Filter Capacitor

The results of output filter investigation of single phase sine voltage source inverter (VSI) are presented. The operating principle, construction and a most widely used topology of single phase voltage source inverter is discussed. The results obtained using modeling and experimental investigation are presented. The Total Harmonic Distortion of the inverter output voltage and maximal current of the output capacitor were analyzed using Matlab Simulink software. The 1 kW inverter prototype was built for experimental investigation. The inverter switches are realized using IGBT transistors. The toroidal iron powder core with distributed air gap was used as the core of the inductor. The experimental investigation of inductor core losses and maximal current of output filter capacitor were performed.

PI and Fuzzy-Controlled 3-Phase 4-Wire Interleaved Buck Active Power Filter with Shoot-Through Elimination for Power Quality Improvement using RTDS Hardware

2014 ◽  
Vol 15 (2) ◽  
pp. 177-194 ◽  
Author(s):  
Anup Kumar Panda ◽  
Ranjeeta Patel
Keyword(s):  
Control Strategy ◽  
Fuzzy Logic Controller ◽  
Supply Voltage ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Current Harmonics ◽  
Power Filter ◽  
Power Quality Improvement ◽  
Real Time Digital Simulator

Abstract In this paper, shoot-through current elimination DC–AC converter circuit has been presented with the application of active power filter (APF). The intuitive analysis of the shoot-through in the conventional DC–AC converter has been reported first. Interleaved buck (IB) converter is adopted to eliminate the shoot-through current, thereby increasing the reliability of the interleaved buck–based active power filter (IB-APF). The 3-phase 4-wire IB-APF eliminates the current harmonics produced by the load just as a conventional one does and are innately immune to “shoot-through” phenomenon, with the elimination of special protection features required in conventional inverter circuits. A comparison has been made about the compensation capabilities of the IB-APF with the PI and fuzzy logic controller (FLC) used by id–iq control strategy under different supply voltage conditions. The id–iq control strategy used for extracting the three-phase reference current for IB-APF, evaluating their performance here in MATLAB/Simulink environment and also implemented using real-time digital simulator hardware (OPAL-RT hardware). The RTDS result verifies that the total harmonic distortion percentage of the source current can be reduced below 5% according to IEEE-519 standard recommendations on harmonic limits.

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