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Journal articles on the topic '4-leg active power filter'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

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1

Mohamed, M. El-sotouhy, A. Mansour Ahmed, I. Marei Mostafa, M. Zaki Aziza, and A. EL-Sattar Ahmed. "Four-leg active power filter control with SUI-PI controller." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 4 (2021): 2768–78. https://doi.org/10.11591/ijece.v11i4.pp2768-2778.

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Four-leg active power filter is considered one of the greatest vital active filters that are frequently used in industrial applications, especially those that need to be controlled in each individual phase. Also, to control the neutral current that created because of a lot of unbalanced and non-linear loads. In this paper, the used active filter was controlled by a proposed control method which can achieve simplicity and intelligence at the same time. The novelty of this paper is using the proposed controller with Four-leg active power filter. This controller relies on instantaneous reactive p

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2

El-sotouhy, Mohamed M., Ahmed A. Mansour, Mostafa I. Marei, Aziza M. Zaki, and Ahmed A. EL-Sattar. "Four-leg active power filter control with SUI-PI controller." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 4 (2021): 2768. http://dx.doi.org/10.11591/ijece.v11i4.pp2768-2778.

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<span>Four-leg active power filter is considered one of the greatest vital active filters that are frequently used in industrial applications, especially those that need to be controlled in each individual phase. Also, to control the neutral current that created because of a lot of unbalanced and non-linear loads. In this paper, the used active filter was controlled by a proposed control method which can achieve simplicity and intelligence at the same time. The novelty of this paper is using the proposed controller with Four-leg active power filter. This controller relies on instantaneou

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3

Satya Mounisha Thurumalla, Sai, V. Sushma Munagapati, Neeraja Modempudi, Venkatesh Amara, and E. Rambabu. "Active Power Filter Implementation Using a Four Leg VSI for Renewable Power Generation Systems." International Journal of Scientific Engineering and Research 5, no. 3 (2017): 79–85. https://doi.org/10.70729/ijser151291.

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4

S., Guru Prasad, S. Srikanth K., and V. Rajanna B. "Advanced Active Power Filter Performance for Grid Integrated Hybrid Renewable Power Generation Systems." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 1 (2018): 60–73. https://doi.org/10.11591/ijeecs.v11.i1.pp60-73.

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An active power filter implemented with a four leg voltage-source inverter using a predictive control scheme is presented. The use of a four leg voltagesource inverter allows the compensation of current harmonic components, as well as unbalanced current generated by single-phase nonlinear loads. A detailed yet simple mathematical model of the active power filter, including the effect of the equivalent power system impedance, is derived and used to design the predictive control algorithm. The compensation performance of the proposed active power filter and the associated control scheme under st

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5

Parimala, V., S. Chenthur Pandian, and D. Ganeshkumar. "An Efficient Particle Swarm Optimization Technique for 4-Leg Shunt Active Power Filter." Circuits and Systems 07, no. 08 (2016): 1546–59. http://dx.doi.org/10.4236/cs.2016.78135.

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6

Srinivas, K. "Harmonics Reduction using 4-Leg Shunt Active Power Filters." International Journal of Electrical and Electronics Engineering 3, no. 12 (2016): 46–50. http://dx.doi.org/10.14445/23488379/ijeee-v3i12p108.

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7

Prasad, S. Guru, K. S. Srikanth, and B. V. Rajanna. "Advanced Active Power Filter Performance for Grid Integrated Hybrid Renewable Power Generation Systems." Indonesian Journal of Electrical Engineering and Computer Science 11, no. 1 (2018): 60. http://dx.doi.org/10.11591/ijeecs.v11.i1.pp60-73.

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An active power filter implemented with a four leg voltage-source inverter using a predictive control scheme is presented. The use of a four leg voltage-source inverter allows the compensation of current harmonic components, as well as unbalanced current generated by single-phase nonlinear loads. A detailed yet simple mathematical model of the active power filter, including the effect of the equivalent power system impedance, is derived and used to design the predictive control algorithm. The compensation performance of the proposed active power filter and the associated control scheme under s

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8

Ankita, Upadhyay, and Singh Padmesh. "Power Quality Improvement using Shunt Active Power Filter." International Journal of Trend in Scientific Research and Development 4, no. 3 (2020): 445–49. https://doi.org/10.5281/zenodo.3892737.

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Nowadays, usage of non linear loads in power system is increasing. For example, UPS, inverters, converters, etc. These loads make the supply current non sinusoidal and distorted form, which is called harmonics. At this time Active power filters have been developed to improve power quality. In this Paper, a Shunt Active Power Filter SAPF control scheme has proposed to eliminate the current harmonics and improve the power quality. The shunt active power filter controlled by using the different controllers such as PI, PID, Fuzzy logic, Pq Theory and hysteresis controller . In our proposed system,

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9

Chebabhi, Ali, Mohammed-Karim Fellah, Mohamed-Fouad Benkhoris, and Abdelhalim Kessal. "Sliding mode controller for four leg shunt active power filter to eliminating zero sequence current, compensating harmonics and reactive power with fixed switching frequency." Serbian Journal of Electrical Engineering 12, no. 2 (2015): 205–18. http://dx.doi.org/10.2298/sjee1502205c.

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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

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10

Freitas, Stefani, Luis Carlos Oliveira, Priscila Oliveira, Bruno Exposto, José Gabriel Pinto, and Joao L. Afonso. "New Topology of a Hybrid, Three-Phase, Four-Wire Shunt Active Power Filter." Energies 16, no. 3 (2023): 1384. http://dx.doi.org/10.3390/en16031384.

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With a view to reducing harmonic content in electrical power systems, and, consequently, improving power quality level, filters and other harmonic compensation devices are widely used. In the category of filters, they can be distinguished into two classes that are related to the operating mode, active or passive, both widely known and applied in electrical power grids and in the most diverse industry sectors. In this sense, taking into account the use of compensating devices in four-wire electrical systems feeding single-phase, non-linear loads, this paper presents a new hybrid arrangement of

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11

Po-Ngam, Sakorn. "The Simplified Control of Three-Phase Four-Leg Shunt Active Power Filter for Harmonics Mitigation, Load Balancing and Reactive Power Compensation." ECTI Transactions on Electrical Engineering, Electronics, and Communications 13, no. 1 (2015): 35–41. http://dx.doi.org/10.37936/ecti-eec.2015131.170984.

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In this paper, the simplified control of three-phase four-leg shunt active power filter for harmonics mitigation, load balancing and reactive power compensation is proposed. In order to calculate the harmonics, current imbalance and reactive power, the load currents are detected and transformed to dq0 variables. By using the low-pass filter, the fundamental active power current can be separated from the d-axis current. Therefore, the commanded active power filter currents are consist of d-axis harmonic currents, q-axis and 0-axis currents. These components are regulated by the PI controller wi

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12

Kamel, Saleh, and Madi Ameen. "A fault-tolerant photovoltaic integrated shunt active power filter with a 27-level inverter." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (2021): 1166–77. https://doi.org/10.11591/ijece.v11i2.pp1166-1177.

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This paper introduces a fault-tolerant shunt active power filter (SAPF). The novility in of this work is that it poposes a solutions to increase the reliability of shunt active power filter to maintain its operation under a single-phase open-circuit fault in the SAPF. This will increase the reliability of the whole power system. The SAPF is composed of a 4-leg 27-level inverter based on asymmetric cascaded H-bridge topology. If an open-circuit fault is introduced to the operation of the SAPF, a special control technique will be implemented and the redundant leg of the SAPF will be activated. T

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13

Ucar, Mehmet, and Engin Ozdemir. "Control of a 3-phase 4-leg active power filter under non-ideal mains voltage condition." Electric Power Systems Research 78, no. 1 (2008): 58–73. http://dx.doi.org/10.1016/j.epsr.2006.12.008.

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14

Saleh, Kamel, and Ameen Madi. "A fault-tolerant photovoltaic integrated shunt active power filter with a 27-level inverter." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (2021): 1166. http://dx.doi.org/10.11591/ijece.v11i2.pp1166-1177.

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This paper introduces a fault-tolerant shunt active power filter (SAPF). The novility in of this work is that it poposes a solutions to increase the reliability of shunt active power filter to maintain its operation under a single-phase open-circuit fault in the SAPF. This will increase the reliability of the whole power system. The SAPF is composed of a 4-leg 27-level inverter based on asymmetric cascaded H-bridge topology. If an open-circuit fault is introduced to the operation of the SAPF, a special control technique will be implemented and the redundant leg of the SAPF will be activated. T

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15

Djendaoui, Dahmane, Amar Benaissa, Boualaga Rabhi, and Laid Zellouma. "Self tunning filter for three levels four legs shunt active power filter with fuzzy logic controller." Acta Polytechnica 61, no. 3 (2021): 415–27. http://dx.doi.org/10.14311/ap.2021.61.0415.

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The low harmonic distortion and reduced switching losses are the advantages of using the multilevel inverter. For this purpose, the three-level inverter is used in this paper as a three-phase four-leg shunt active power filter (SAPF). The SAPF is used to eliminate the harmonic current to compensate the reactive power current, and to balance the load currents under an unbalanced non-linear load. A fuzzy logic controller and self-tuning filters (STF) are used to control the active power filter (APF) and generate the reference current. To demonstrate the validity of the proposed control strategy,

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16

Crispino Proenca, Lais, and Luis Rolim. "Two-leg Modular Multilevel Cascade Converter as Active Power Filter - Control Improvement." IEEE Latin America Transactions 17, no. 09 (2019): 1501–8. http://dx.doi.org/10.1109/tla.2019.8931144.

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17

Bin, Li, and Tong Minyong. "Control Method of the Three-Phase Four-Leg Shunt Active Power Filter." Energy Procedia 14 (2012): 1825–30. http://dx.doi.org/10.1016/j.egypro.2011.12.1174.

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18

Lin, Bor-Ren, and Yuan-An Ou. "Active power filter based on three-phase two-leg switch-clamped inverter." Electric Power Systems Research 72, no. 1 (2004): 63–72. http://dx.doi.org/10.1016/j.epsr.2004.03.008.

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19

Jian, Le, Li Xingrui, Wang Cao, Zhang Hao, and Gao Chao. "Novel compound PWM strategy of a four-leg shunt active power filter." International Journal of Electronics 105, no. 12 (2018): 1993–2008. http://dx.doi.org/10.1080/00207217.2018.1494328.

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20

Li, Xing Gang, Ren Yong Feng, Hai Zhen Kang, and Zhi Guo Shi. "Simulation of Novel Three-Level Shunt Active Power Filter." Applied Mechanics and Materials 195-196 (August 2012): 748–53. http://dx.doi.org/10.4028/www.scientific.net/amm.195-196.748.

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A new topology of shunt active power filter with two-leg three-level clamped capacitor in the main circuit is presented, and the operation principle and control scheme are introduced. The adopted device is operated as a controllable current source to eliminate current harmonics. The new hysteretic current comparison control scheme is used to track the command current and to balance the neutral-point voltage. Meanwhile the redundant operating states in the adopted inverter can be selected to compensate the clamped capacitor voltage to achieve the dynamic balance of the capacity voltage. Simulat

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21

Ms., Rohini. R. Dabhade* Prof. C. Veeresh. "RESOLVEMENT OF POWER QUALITY PROBLEMS BY UNIFIED POWER QUALITY CONDITIONER (UPQC)." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 8 (2016): 63–67. https://doi.org/10.5281/zenodo.59954.

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In this project presents a Design of a Unified Power Quality conditioner (UPQC) connected to three phase four wire system (3P4W). The neutral of series transformer used in the fourth wire for the 3P4W system. The neutral current that may flow toward transformer neutral point is compensated by using a four-leg voltage source inverter topology for shunt part. The series transformer neutral will be at virtual zero potential during all operating conditions. In this simulation we observe the power quality problems such as unbalanced voltage and current, harmonics by connecting non linear load to 3P

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22

BURBELO, Mykhailo, Denys LEBED, and Oleksandr LESHCHENKO. "OPTIMIZATION OF CHARGE / DISCHARGE TIME OF ACTIVE FILTER CAPACITORS DURING VOLTAGE FLUCTUATIONS." Herald of Khmelnytskyi National University. Technical sciences 311, no. 4 (2022): 58–63. http://dx.doi.org/10.31891/2307-5732-2022-311-4-58-63.

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A voltage regulator on capacitors has been developed for the control circuit of a parallel active filter based on dq-theory with a block of sliding averaging current in the current control circuit i_d. It contains a delay unit, a digital low-pass filter of the first order FIR or IIR (depending on the variant of the considered scheme) and the unit “sgn”, which stabilizes the output signal. The voltage control circuit on the capacitor can be implemented entirely in digital signal processing and used instead of the analog PID controller, which is much more effective if you need to adapt the circu

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23

Madhu, B. R., M. N. Dinesh, Thinlas Tsewang, and Menezes Deril. "Enhancement of power quality using microprocessor based shunt active power filter for unbalanced load." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 4 (2020): 3393–402. https://doi.org/10.11591/ijece.v10i4.pp3393-3402.

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Power quality is the most significant factor of power sector. The end user equipment such as induction motor, inverters, rectifiers inject harmonics into power system that influences the quality of power delivered. The presence of harmonics forces the use of instantaneous reactive power theory to calculate instantaneous power that helps in finding the compensating currents to eliminate harmonics. The control action required by active filter is accomplished by STM32F303RET6 microcontroller. Single phase induction motor is used as a dynamic nonlinear load in one of the three phases and resistive

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24

Badra, M. S., S. Barkat, and M. Bouzidi. "Backstepping control of three-phase three-level four-leg shunt active power filter." Journal of Fundamental and Applied Sciences 9, no. 1 (2017): 274. http://dx.doi.org/10.4314/jfas.v9i1.18.

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25

VIJAYAKUMAR, M., and S. VIJAYAN. "THREE-PHASE FOUR-WIRE PV-BASED SERIES HYBRID ACTIVE POWER FILTER FOR POWER QUALITY IMPROVEMENT." Journal of Circuits, Systems and Computers 23, no. 10 (2014): 1450144. http://dx.doi.org/10.1142/s0218126614501448.

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This paper proposes a photovoltaic (PV)-based three-phase four-wire (3P4W) series hybrid active power filter (SHAPF) it comprises of a series active power filter (SAPF) and an LC shunt passive filter. The proposed system eliminates both the current and voltage harmonics and compensates reactive power, neutral current and voltage interruption. A SAPF demands a source of energy for compensating the voltage sag/swell. This system introduces a new topology for SHAPF utilizes the PV with DC–DC boost converter as a source of DC power for SAPF. The compensation current reference evaluation is based o

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26

ZHOU, Juan, Xiao-jie WU, Yi-wen GENG, and Peng DAI. "Simulation Research on a SVPWM Control Algorithm for a Four-Leg Active Power Filter." Journal of China University of Mining and Technology 17, no. 4 (2007): 590–94. http://dx.doi.org/10.1016/s1006-1266(07)60152-7.

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27

Rodrigues, Phelipe Leal Serafim, Cursino Brandao Jacobina, Mauricio Beltrao de Rossiter Correa, and Italo Roger Ferreira Moreno Pinheiro da Silva. "Single-Phase Universal Active Power Filter Based on Four-Leg AC–DC–AC Converters." IEEE Transactions on Industry Applications 55, no. 2 (2019): 1639–48. http://dx.doi.org/10.1109/tia.2018.2876027.

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28

Antoniewicz, Kamil, Krzysztof Rafal, and Marek Jasinski. "Model Predictive Control of Four-Leg Three-Level Flying Capacitor Converter: Influence of Model Parameter Mismatch." Power Electronics and Drives 3, no. 1 (2018): 1–9. http://dx.doi.org/10.2478/pead-2018-0014.

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Abstract This paper presents a control method for a four-leg three-level flying capacitor converter (FCC) operating as a shunt active power filter (SAPF), based on model predictive control with finite number of control states (FS-MPC). Current control and capacitor voltage balancing are described. Influence of the mismatch of the inductive filter model parameters on the current control precision is analysed. Results are supported by the experimental waveforms obtained with a 10kVA set-up.

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29

Asep, Andang, Sari Hartati Rukmi, Bagus Gede Manuaba I, and Nyoman Satya Kumara I. "Three-phase four-wire shunt hybrid active power filter model with model predictive control in imbalance distribution networks." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 6 (2022): 5923–37. https://doi.org/10.11591/ijece.v12i6.pp5923-5937.

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This paper presents a harmonic reduction and load imbalance model in a three-phase four-wire distribution network. This model uses a hybrid active power filter, a passive inductor and capacitor filter, and an active power filter in the form of a three-phase, four-leg connected grid inverter. The switching of the voltage source converter on this filter uses finite control set model predictive control (FCS-MPC). Control of this hybrid active power filter uses model predictive control (MPC) with a cost function, comparing the reference current and prediction current with mathematical modelling of

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30

Song, Qing Shuo. "Control for 3-Phase 4-Wire Active Power Filter Based on Synchronous Reference Frame." Advanced Materials Research 460 (February 2012): 304–7. http://dx.doi.org/10.4028/www.scientific.net/amr.460.304.

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This paper presents a new control approach based on synchronous reference frame for an active power filter (APF) to compensate harmonic and the reactive power of a 3-phase thyristor bridge rectifier under the different loads. Matlab/simulink power system toolbox is used to simulate the proposed system. The proposed method performance is compared with conventional instantaneous power (p–q) theory. The simulation results are presented and discussed showing the effectiveness of the control algorithm. The increased performance of the active power filter and dynamic load conditions are extensively

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31

Rao, Kambhampati Venkata Govardhan, and Malligunta Kiran Kumar. "The harmonic reduction techniques in shunt active power filter when integrated with non-conventional energy sources." Indonesian Journal of Electrical Engineering and Computer Science 25, no. 3 (2022): 1236–45. https://doi.org/10.11591/ijeecs.v25.i3.pp1236-1245.

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The article covers the control techniques of shunt active filters using switching devices using artificial neural network (ANN) Theory. The basic idea is to achieve perfect disturbance minimization in both steady and transient states. The paper talks about a four-legged converter with a voltage source that can adjust for biased currents and harmonic elements caused by non-linear loads. A shunt connected active filter is used to minimise harmonic currents. The new proposed ANN controller for the improvement of percent total harmonic distortion (THD) is in comparison. The entire power filter con

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32

Hou, Wen Bao, and De Lu Li. "Research on Predictive Current Control for Three-Level Four-Leg APF." Advanced Materials Research 1049-1050 (October 2014): 767–70. http://dx.doi.org/10.4028/www.scientific.net/amr.1049-1050.767.

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Taking three-level four-leg active power filter (APF) as research object, this paper establishes the corresponding mathematical model. In addition, the paper establishes the Matlab model based on predictive current control strategy, and then the theoretical analysis and simulation research are conducted. The simulation and experimental results show that the APF with predictive current control strategy can compensate harmonic current and neutral current well and make the two capacitors voltage balance effectively.

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33

Sobolev, Aleksandr Sergeevich, Alexei Viktorovich Vyngra, and Sergey Grigoryevich Cherniy. "Developing simulation model of active filter for marine intelligent transportation systems." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2021, no. 2 (2021): 90–98. http://dx.doi.org/10.24143/2073-1574-2021-2-90-98.

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The article studies the factors influencing the quality of electricity in the power supply systems of sea vessels. Problems caused by electromagnetic interference on ships including voltage drop in the electrical networks due to the nonlinear loads in the system, as well as power asymmetry are considered. The necessity of using active filters in autonomous power systems is found out. A model of an active filter for a closed power supply system with a nonlinear asymmetric load has been developed. The diagram of the active filter model in MATLAB / Simulink environment is illustrated. The simulat

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34

Ucar, Mehmet, and Sule Ozdemir. "3-Phase 4-leg unified series–parallel active filter system with ultracapacitor energy storage for unbalanced voltage sag mitigation." International Journal of Electrical Power & Energy Systems 49 (July 2013): 149–59. http://dx.doi.org/10.1016/j.ijepes.2013.01.005.

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35

, M Sonia, Kundeti Krishna Rao. "Application of Fuzzy Controller for Improvement of Power Quality using UPQC." International Journal for Modern Trends in Science and Technology, no. 8 (August 5, 2020): 27–30. http://dx.doi.org/10.46501/ijmtst060806.

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Generally, one of the custom power device in FACTS called unified power quality conditioner, which is used to compensate the voltage and current-related Power Quality issues in the distribution systems. The proposed UPQC technology have an advantage of reduced dc-link voltage without compromising its compensation capability. This new method also helps to meet the requirement of dc-link voltage for the shunt and series active filters of the UPQC. This type of topology has a capacitor in series with the interfacing inductor across the shunt active filter for filtering purpose, and the system neu

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36

Tao, Mao. "A compound control strategy for LCL-based three phase four leg shunt active power filter." IOP Conference Series: Earth and Environmental Science 692, no. 2 (2021): 022108. http://dx.doi.org/10.1088/1755-1315/692/2/022108.

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37

Jayachandran, J., and R. Murali Sachithanandam. "ANN based controller for three phase four leg shunt active filter for power quality improvement." Ain Shams Engineering Journal 7, no. 1 (2016): 275–92. http://dx.doi.org/10.1016/j.asej.2015.03.007.

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38

Chen, Juming, Feng Liu, and Shengwei Mei. "Nonlinear disturbance attenuation control for four-leg active power filter based on voltage source inverter." Journal of Control Theory and Applications 4, no. 3 (2006): 261–66. http://dx.doi.org/10.1007/s11768-006-5280-3.

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39

Andang, Asep, Rukmi Sari Hartati, I. Bagus Gede Manuaba, and I. Nyoman Satya Kumara. "Three-phase four-wire shunt hybrid active power filter model with model predictive control in imbalance distribution networks." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 6 (2022): 5923. http://dx.doi.org/10.11591/ijece.v12i6.pp5923-5937.

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<span lang="EN-US">This paper presents a harmonic reduction and load imbalance model in a three-phase four-wire distribution network. This model uses a hybrid active power filter, a passive inductor and capacitor filter, and an active power filter in the form of a three-phase, four-leg connected grid inverter. The switching of the voltage source converter on this filter uses finite control set model predictive control (FCS-MPC). Control of this hybrid active power filter uses model predictive control (MPC) with a cost function, comparing the reference current and prediction current with

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40

Popescu, Mihaela, Alexandru Bitoleanu, Mihaita Linca, and Constantin Vlad Suru. "Improving Power Quality by a Four-Wire Shunt Active Power Filter: A Case Study." Energies 14, no. 7 (2021): 1951. http://dx.doi.org/10.3390/en14071951.

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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

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41

Dwi Ade Saputra, G. A. M., I. Wayan Rinas, and I. Made Suartika. "Studi Analisis Pengaruh Filter Aktif Berbasis Fuzzy Logic Controller Untuk Mereduksi Harmonisa Akibat Beban Non Linier." Jurnal SPEKTRUM 6, no. 2 (2019): 24. http://dx.doi.org/10.24843/spektrum.2019.v06.i02.p04.

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Electrical equipment categorized as the nonlinear load will cause harmonics. Harmonic is a periodic distortion of the sine wave that can cause a negative impact on electronic equipment components. One way to improve power quality is to reduce harmonics using harmonic filters. In this study, an analysis of the system was carried out before adding a filter and after adding an active filter based on a fuzzy logic controller. The application of the fuzzy logic method on filters functions to reduce over switching in the inverter so that it can reach the lowest THDi value. THDi simulation results wh

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42

PANTOLI, LEONARDO, VINCENZO STORNELLI, and GIORGIO LEUZZI. "TUNABLE ACTIVE FILTERS FOR RF AND MICROWAVE APPLICATIONS." Journal of Circuits, Systems and Computers 23, no. 06 (2014): 1450088. http://dx.doi.org/10.1142/s0218126614500881.

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In this paper, we present a low-voltage tunable active filter for microwave applications. The proposed filter is based on a single-transistor active inductor (AI), that allows the reduction of circuit area and power consumption. The three active-cell bandpass filter has a 1950 MHz center frequency with a -1 dB flat bandwidth of 10 MHz (Q ≈ 200), a shape factor (30–3 dB) of 2.5, and can be tuned in the range 1800–2050 MHz, with constant insertion loss. A dynamic range of about 75 dB is obtained, with a P1dB compression point of -5 dBm. The prototype board, fabricated on a TLX-8 substrate, has a

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Antoniewicz, K., and K. Rafal. "Model predictive current control method for four-leg three-level converter operating as shunt active power filter and grid connected inverter." Bulletin of the Polish Academy of Sciences Technical Sciences 65, no. 5 (2017): 601–7. http://dx.doi.org/10.1515/bpasts-2017-0065.

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Abstract This paper presents model predictive control (MPC) with a finite control states set (FS) for three-level four-leg flying capacitor (FCC) converter. Principles of control method are presented and flying capacitor voltages control method is discussed. Experimental results of converter operating as a shunt active power filter (SAPF) and grid connected inverter (GCI) are shown.

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Singh, Bhim, and Sabha Raj Arya. "Adaptive Control of Four-Leg VSC Based DSTATCOM in Distribution System." International Journal of Emerging Electric Power Systems 15, no. 1 (2014): 93–99. http://dx.doi.org/10.1515/ijeeps-2013-0145.

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Abstract This work discusses an experimental performance of a four-leg Distribution Static Compensator (DSTATCOM) using an adaptive filter based approach. It is used for estimation of reference supply currents through extracting the fundamental active power components of three-phase distorted load currents. This control algorithm is implemented on an assembled DSTATCOM for harmonics elimination, neutral current compensation and load balancing, under nonlinear loads. Experimental results are discussed, and it is noticed that DSTATCOM is effective solution to perform satisfactory performance und

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Dobroskok, Nikita A., Anastasiia D. Stotckaia, Ruslan M. Migranov, et al. "Investigation of bidirectional three-phase four-leg converter with LCL filter." International Journal of Power Electronics and Drive Systems (IJPEDS) 15, no. 2 (2024): 1091–104. https://doi.org/10.11591/ijpeds.v15.i2.pp1091-1104.

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A three-phase four-leg bidirectional power converter used as an input stage of an energy storage system using the inductance (L), capacitance (C), and inductance (L) or LCL filter on the grid side is considered. The article provides a variant of the three-phase four-leg bidirectional converter control system implementation based on 3D space vector pulse-width modulation and per-phase voltage control. A brief analysis of the applied control algorithms of the three-phase four-leg bidirectional converter in inverter and rectifier modes is given. A computer model has been built to investigate the

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Bouzidi, M., A. Benaissa, and S. Barkat. "Hybrid direct power/current control using feedback linearization of three-level four-leg voltage source shunt active power filter." International Journal of Electrical Power & Energy Systems 61 (October 2014): 629–46. http://dx.doi.org/10.1016/j.ijepes.2014.03.071.

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Xiao, Zhenfeng, Yilong Chen, Rongxiang Yuan, and Xiangtian Deng. "Analysis and Experimental Validation of a Space-Vector-Modulation Algorithm for Four-Leg Active Power Filter." International Journal of Control and Automation 7, no. 3 (2014): 73–88. http://dx.doi.org/10.14257/ijca.2014.7.4.08.

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ELBAR, Mohamed, Imad MERZOUK, Mohamed Mounir REZAOUI, and Noureddine BESSOUS. "Three-Dimensional Pulse Width Modulation Techniques for Three-Phase Four Leg Voltage Source Converters." Algerian Journal of Signals and Systems 5, no. 3 (2020): 153–58. http://dx.doi.org/10.51485/ajss.v5i3.111.

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This paper presents a new control strategy to improve the performance of shunt active power filter (SAPF) in three-phase four-wire system when operating under an unbalanced system. A control method based on the instantaneous power theory have been used and discussed. On the other side, a three-dimensional hysteresis current controller is used to track the compensated current references. This scheme requires the service of a phased-locked loop (PLL) to make the system insensitive to the distortions that are generally present in the utility voltages. The performance of the proposed topology unde

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Zahid, Hassan, and Deep Yadav Gagan. "Reactive Power Compensation and Limiting Harmonic Current using Shunt Active Power Filter." International Journal of Trend in Scientific Research and Development 2, no. 4 (2018): 50–54. https://doi.org/10.31142/ijtsrd12958.

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In this paper, a shunt active power filter SAPF based on adaptive hysteresis band current controller HBCC is proposed for limiting the harmonics in load current and also compensate the reactive power for 3 phase non linear load. The HBCC calculate the active power and reactive power, transforms them in d, q and 0 components using Clarke's transformation then calculates the compensating values of active and reactive power to inject them further in system. The HBCC determines the switching signals of the SAPF, and the algorithm based on an extension of synchronous reference frame theory d q

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Pinto, J. G., Ricardo Pregitzer, Luís F. C. Monteiro, and Joao L. Afonso. "3-phase 4-wire shunt active power filter with renewable energy interface." Renewable Energy and Power Quality Journal 1, no. 05 (2007): 625–30. http://dx.doi.org/10.24084/repqj05.350.

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