An improved sliding mode controller for a multifunctional photovoltaic grid tied inverter

Safa, Ahmed; Berkouk, El Madjid; Messlem, Youcef; Gouichiche, Abdelmadjid

doi:10.1063/1.4997694

Cited by 9 publications

(7 citation statements)

References 45 publications

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“…In this work, the direct method has been adopted as shown in Figure 2 [2]. There are three blocks for this control strategy.…”

Section: Reference Current Generation Using the Direct Methodsmentioning

confidence: 99%

“…To this end, many identifications have been reported in the literature [9]- [22]; they [20], the nonlinear least square [21]. However, these techniques require a computational demanding, and its estimation accuracy is affected by the choice of sampling frequency and window length, the time-domain techniques such as the instantaneous power theory (IPT) [4], the diphase current method (DQ) and the direct [2], [22].…”

Section: Introductionmentioning

confidence: 99%

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A fast and robust reference current generation algorithm for three-phase shunt active power filter

Chedjara

Massoum

Wira

et al. 2021

IJPEDS

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The identification of the reference currents constitutes an important part of the control of the active power filter. This part requires an accurate estimation of the frequency, phase, and proper extraction of the load current harmonics. This makes the modeling more difficult and requests a rigorous selection of techniques to be used. For the sake of simplicity, the direct method is motivated by the need for the simplicity and flexibility than the existing techniques such as the instantaneous power theory and diphase currents method. However, this method requires a robust phase-locked loop to extract the unity voltages and a robust controller to estimate the magnitude of the source current. To this end, this paper proposes the hybrid phase-locked loop (HPLL) as a good option mainly because 1) it achieves zero phase error under frequency drifts, 2) Fast dynamic response, 3) totally block the DC offset, 4) From the control point of view, it is a type 1 control system which results in high stability margin. To the best of authors’ knowledge, the HPLL has not been used in active power filter yet. Furthermore, a neural PI regulator is used to estimate the magnitude of the source current. Simulation results show the efficiency of the proposed technique and illustrate all its interesting features. For the sake of comparison, the proposed method is compared to other advanced techniques.

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“…In this work, the direct method has been adopted as shown in Figure 2 [2]. There are three blocks for this control strategy.…”

Section: Reference Current Generation Using the Direct Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A fast and robust reference current generation algorithm for three-phase shunt active power filter

Chedjara

Massoum

Wira

et al. 2021

IJPEDS

Self Cite

View full text Add to dashboard Cite

show abstract

“…A. Safa et al [4] This article offers a robust control algorithm for Grid Connected Multifunctional Inverter (MFGTI) for Photovoltaic (PV). The MFGTI is used to simultaneously supply the active power of a photovoltaic module and improve the energy quality of a microgrid.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The photovoltaic system is a potential renewable energy source with which it is possible to overcome dependence on fossil fuels [4]. Figure 1 shows the representation of a hybrid PV generation unit consisting of a PV generator, a DG, an inverter and a battery system.…”

Section: B Pv Module Modelingmentioning

confidence: 99%

Fault Analyzer Circuit Analysis at the Load Line in Hybrid Solar/Wind System

Nautiyal

Verma

2020

IJOSCIENCE

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Electric power is generated, transmitted, and distributed via large interconnected power systems. The generation of electric power takes place in a power plant. The main objective reduces the operating time of fault current removal from the load line and senses the fault current quickly to overcome its effects. The system is to be made effective and efficient while dealing with the fault situation, fault removal, and restoration of the normal operating conditions at the loading points. The results conclude the effectiveness of the proposed T-ACO-based Optimization control for the operation of the relay in accordance with the fault current limiter and analyzer circuit. The second model of the hybrid system concludes that the system having fault current limiter and analyzer circuit reduces and fault current rise and prevents the voltage from dropping to zero even if no AI-based technique is used and the operating time remains the same. The AI-based techniques further reduce the operating time also thereby making the system more efficient as the voltage is restored to its normal value in a short interval of time when the test system is simulated for 1 second in a MATLAB/SIMULINK environment.

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“…Multi‐functional GCIs are gaining significant importance because of their capabilities to compensate harmonics, reactive power, unbalance, and neutral currents along with active power injection to the distribution system. The detailed review of the state of the art on multi‐functional GCI topologies and control strategies reported in the literature have been described in detail with its contributions and the research gaps in Table 1 11‐39 . All previously mentioned research studies discussed in Table 1 demonstrated their efficacy and legitimacy.…”

Section: Introductionmentioning

confidence: 99%

Power management algorithm for a conservative power theory battery storage based multi‐functional three phase grid connectedPVinverter

Oruganti

Sarma

Mortezaei

et al. 2020

Int Trans Electr Energ Syst

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Objective A conservative power theory (CPT) based two‐stage three‐phase multi‐functional grid‐connected photovoltaic (PV) inverter (MGCPI) with auxiliary battery storage system (BSS) is proposed in this article. This proposed configuration offers selective power injection and power conditioning to the consumers. A power management (PM) algorithm is developed to decide the best mode of operation of the MGCPI, taking into account the state‐of‐charge (SOC) of the BSS and the available power at the solar‐PV source for effective coordination between BSS and PV source. Methods CPT is used for computing the MGCPI current reference signals for multi‐functional operations. The feed‐forward linear control systems are designed using classical frequency response analysis for a synergetic operation of BSS and MGCPI. The whole system configuration is modeled using MATLAB/Simulink and validated in real‐time with PM algorithm for unbalanced linear and nonlinear loads using OPAL‐RT based OP4500 grid emulator. Result The injected power, percentage THD of individual phase currents, true power factor, and unbalanced current are measured for various modes of operation. The proposed MGCPI with BSS improves the power quality (PQ) and also injects seamless power at the point of common coupling (PCC) to reduce the grid consumption. Conclusion The real‐time results demonstrate the effectiveness of the proposed approach for unbalanced nonlinear loads in smart electric grid, provisioning harmonic‐free electrical power as per the requirements of IEEE 519‐2014, IEEE 1547a‐2018 standards.

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An improved sliding mode controller for a multifunctional photovoltaic grid tied inverter

Cited by 9 publications

References 45 publications

A fast and robust reference current generation algorithm for three-phase shunt active power filter

A fast and robust reference current generation algorithm for three-phase shunt active power filter

Fault Analyzer Circuit Analysis at the Load Line in Hybrid Solar/Wind System

Power management algorithm for a conservative power theory battery storage based multi‐functional three phase grid connectedPVinverter

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