Comparative Analysis of PWM Techniques for Three Level Diode Clamped Voltage Source Inverter

Ibrahim, Zulkifilie; Hossain, Md. Liton; Bugis, Ismadi; Lazi, Jurifa Mat; Yaakop, Nurazlin Mohd

doi:10.11591/ijpeds.v5i1.6038

Cited by 7 publications

(5 citation statements)

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“…(b) Triangle identification The vector of reference is projected on two axes in which there is 𝜋/3rad between them. The projected components can be regularized by: For finding the triangles number in a sector S, it is necessary to define the two integers [20]:…”

Section: Series Currents Flc Designmentioning

confidence: 99%

Multivariable Filter-Based New Harmonic Voltage Identification for a 3-Level UPQC

Dahdouh,

Mazouz,

Elottri

et al. 2023

JESA

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An innovative methodology for harmonic voltage identification has been introduced, leveraging the application of a multivariable-filter (FMV) to the three-level unified power quality conditioner (UPQC). The UPQC is controlled using a feedback linearization method founded on the space vector modulation (SVM) approach. The main attributes of this novel technique are its simplicity, robustness, and ease of implementation. It necessitates only a Concordia transformation block and an FMV filter. To enhance the performance of the UPQC system, this technique is incorporated into the control strategy. This integration considers an energy minimization based balancing of DC capacitor voltages. A prime advantage of this methodology is the provision of compensation signals with impeccable accuracy and typical speed. This is achievable under a myriad of load conditions, enabling the elimination of current and voltage harmonics while maintaining a high dynamic response. Validation of the proposed method's performance is achieved through MATLAB/Simulink simulations, applied to a diverse nonlinear load. When contrasted with results obtained from the conventional PQ-theory, these simulations demonstrate the superior effectiveness of this newly proposed identification technique.

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Section: Series Currents Flc Designmentioning

confidence: 99%

Multivariable Filter-Based New Harmonic Voltage Identification for a 3-Level UPQC

Dahdouh,

Mazouz,

Elottri

et al. 2023

JESA

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“…Altering the null vector of every cycle and reversing the sequence after every null vector is a popular SVM approach as shown in Figure 8. This is what we'll call it, the symmetric 7segment approach [24].…”

Section: Space Vector Modulationmentioning

confidence: 99%

PIL Implementation of Feedback Linearisation-SVM Control of 3-Phase Multifunctional Grid-Tied Solar PV Integrated UPQC

Dahdouh¹,

Mazouz²,

Youcefa³

2022

JESA

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In this paper, an implementation of a feedback linearisation-based on SVM control of a multifunctional unified power quality conditioner (UPQC) combined with a photovoltaic generator (PVG) using STM32F429I-DISC DSP board has been presented. Further, The PVG-UPQC is acting as a universal conditioner for power quality enhancement and renewable energy integration simultaneously with harmonics reduction in both grid voltage and current. Furthermore, the system can also compensate reactive power in presence of nonlinear loads. The presented system is made up of a shunt active power filter which acts as a current harmonics compensator in addition to a series filter that compensates voltage harmonics and fluctuations such as voltage sag/swell. In order to enhancing the PVG-UPQC performances, a nonlinear feedback linearisation control technique combined with SVM controller is applied. The performance of the suggested control scheme is validated by extensive PIL co-simulation technique. The obtained results prove the high performances and reliability of the presented system in the case of nonlinear load variations as well as eliminating voltage and current harmonics. These results accomplish the superiority and effectiveness of those obtained by a compared to a conventional PI controller.

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“…In fact, the control system uses two control loops, an external control loop which regulates DC link voltage and an internal loop which regulates active and reactive currents components (Id and Iq). The output voltage of the converter and the inverter is controlled by the PWM modulator [4][5][6][7][8][9][10]. The principal specifications for this system are given in Table 1.…”

Section: Description Of the Studied Systemmentioning

confidence: 99%

Comparison between PI and PR Current Controllers of a Grid- Connected Photovoltaic System Under Load Variation

Essaghir

Benchagra

Barbri

2018

IJPEDS

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This paper presents a current control technique for a three-phase grid-connected DC /AC inverter which is used in photovoltaic systems. A Proportional-Resonant (PR) controller is used for replacing the conventional Proportional-Integral (PI) controller in this system. By comparison with the conventional PI control method, the PR control can introduce an infinite gain at the fundamental frequency and hence can achieve zero steady-state error. The proposed model is based on two control loops: the first control loop regulates DC link voltage and the second one is used to keep the injected current to the grid in phase with the voltage by means of a Phase Locked Loop (PLL) in order to achieve a unit power factor and to adjust the output power as required. In order to examine the effectiveness of the suggested control, a simulation using the Matlab/Simulink software has been done and it’s concluded from the simulation results that the presented control by using the PR controller can be able to maintain maximum active power and to keep always a unity power factor despite variation load.

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Comparative Analysis of PWM Techniques for Three Level Diode Clamped Voltage Source Inverter

Cited by 7 publications

References 0 publications

Multivariable Filter-Based New Harmonic Voltage Identification for a 3-Level UPQC

Multivariable Filter-Based New Harmonic Voltage Identification for a 3-Level UPQC

PIL Implementation of Feedback Linearisation-SVM Control of 3-Phase Multifunctional Grid-Tied Solar PV Integrated UPQC

Comparison between PI and PR Current Controllers of a Grid- Connected Photovoltaic System Under Load Variation

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