Total and selective harmonic currents suppression based on three-phase four-wire shunt active power filter

Dellahi, M.; Maker, Hattab; Alameda-Hernández, E.; Mouhsen, Ah.; Mouhsen, Az

doi:10.1063/1.5084986

Cited by 2 publications

(11 citation statements)

References 19 publications

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“…1, for our case study, such as flying capacitor four-level inverter, every four-level inverter leg is composed of three commutation cells connected to a set of two flying-capacitor voltage sources VC(i,j) and a pair of three turn-on and turn-off controlled commutation cells T(i,j) and T′(i,j) having complementary states. i and j are, respectively, the number of phase and inverter commutation cells, such as i∈ [1,2,3], j∈ [1, p], and p is the number of switching cells per half-arm per phase. Per phase, (p−1), is the number of flying capacitor voltages.…”

Section: Fcmli Topologymentioning

confidence: 99%

“…In this regard, Fig. 8a shows simulation results of the first phase grid current Ia and APF compensated harmonic current If1, homopolar component voltage V0, load current Id, inverter output voltage VAB, first phase inverter flying capacitors C(1,1) and C (1,2), voltages Vc(1,1) and Vc(1,2), and currents Ic(1,1) and Ic (1,2).…”

Section: Simulation Test Under Non-ideal Grid Voltagesmentioning

confidence: 99%

“…As shown in simulation results given thereafter, flying capacitors Vc(1,1) and Vc (1,2) are initially charged to their reference voltages 300 and 600 V, respectively. The four-level inverter is only controlled when the filter is put into operation at t = 0.2 s, the reason why the inverter output voltage VAB as shown in Fig.…”

Section: Simulation Test Under Non-ideal Grid Voltagesmentioning

confidence: 99%

“…The passive filter has accuracy problems when grid frequency varies. In [1][2][3][4][5], three-and singlephase shunt APF (SAPF) and hybrid filter topologies were studied to compensate for harmonic currents in the utility grid to compensate for reactive power while increasing the power factor. However, active power P and reactive power Q problems occur when three phases are related to the non-linear load single-phase.…”

Section: Introductionmentioning

confidence: 99%

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Backstepping control of flying capacitor multilevel inverter‐based active power filter

Manai

Hakiri

Besbes

2020

IET power electron.

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In this work, the authors are considering the problem of compensation of harmonic current absorbed by a non-linear load from a three-phase grid voltage. The objective is twofold: the first is to reduce cost and control complexity by avoiding proportional-integral regulators and optimising measurement instrumentation while ensuring inverter capacitor voltage selfbalance and the second is to provide a robust control strategy against power grid problems. Without measuring current and capacitor voltages, the proposed control strategy generates accurate control signals able to ensure flying capacitor inverter selfbalance and full compensation of harmonics whatever the grid voltage problem. In this regard, the robustness of the proposed control against power grid problem such as sag, swell, grid voltage unbalance, and frequency variation have been tested while proving its efficiency to compensate for harmonic currents and ensuring capacitor voltage natural balance even in transient regimes. During balanced and unbalanced loads, the proposed method has exhibited an excellent transient response, represented by capacitor voltages tracking to their reference in the presence of large variation in the load. Finally, effectiveness of the proposed control strategy is verified by numerical simulations as well as realistic experiments, and its merits are showed in comparison with other methods. * = V * c i, j I * c i, j reference capacitor power I d non-linear load current R, L load resistive-inductive load

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Section: Fcmli Topologymentioning

confidence: 99%

Section: Simulation Test Under Non-ideal Grid Voltagesmentioning

confidence: 99%

Section: Simulation Test Under Non-ideal Grid Voltagesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Backstepping control of flying capacitor multilevel inverter‐based active power filter

Manai

Hakiri

Besbes

2020

IET power electron.

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“…The methodology of the P and PI controllers demands a precise linear mathematical model, which is hard to have available, and it also cannot perform satisfactorily or provide a good response under parameter variations, nonlinearity, or load disturbances, and in fact, the transient response is slow, especially for fast‐changing loads. In this work, our objective is to design a model based on a new Lyapunov function for DC voltage control, which allows a very good dynamic with and without variations in loads, unlike the control used in previous works . Furthermore, the fuzzy logic controller has certain drawbacks, such as iteration and redundancy problems, and for the controller based on NFC, in the case of changes in the DC voltage reference, the DC voltage response follows its reference slowly .…”

Section: Introductionmentioning

confidence: 99%

Three‐phase four‐wire shunt active power filter based on the SOGI filter and Lyapunov function for DC bus control

Dellahi

Maker

Botella

et al. 2020

Circuit Theory & Apps

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The three-phase four-wire shunt active power filter (SAPF) was developed to suppress the harmonic currents generated by nonlinear loads, and for the compensation of unbalanced nonlinear load currents, reactive power, and the harmonic neutral current. In this work, we consider instantaneous reactive power theory (PQ theory) for reference current identification based on the following two algorithms: the classic low-pass filter (LPF) and the second-order generalized integrator (SOGI) filter. Furthermore, since an important process in SAPF control is the regulation of the DC bus voltage at the capacitor, a new controller based on the Lyapunov function is also proposed. A complete simulation of the resultant active filtering system confirms its validity, which uses the SOGI filter to extract the reference currents from the distorted line currents, compared with the traditional PQ theory based on LPF. In addition, the simulation performed also demonstrates the superiority of the proposed approach, for DC bus voltage control based on the Lyapunov function, compared with the traditional proportional-integral (PI) controller. Both novel approaches contribute towards an improvement in the overall performance of the system, which consists of a small rise and settling time, a very low or nonexistent overshoot, and the minimization of the total harmonic distortion (THD). KEYWORDS active power filter (APF), DC bus voltage control, low-pass filter (LPF), Lyapunov function, PQ theory, SOGI filter Int J Circ Theor Appl. 2020;48:887-905.wileyonlinelibrary.com/journal/cta

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Total and selective harmonic currents suppression based on three-phase four-wire shunt active power filter

Cited by 2 publications

References 19 publications

Backstepping control of flying capacitor multilevel inverter‐based active power filter

Backstepping control of flying capacitor multilevel inverter‐based active power filter

Three‐phase four‐wire shunt active power filter based on the SOGI filter and Lyapunov function for DC bus control

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