A Novel Control Scheme Using UAPF in an Integrated PV Grid-Tied System

Golla, Mallikarjuna; Subbaiyan, Thangavel; Simon, Sishaj P.; Padhy, Narayana Prasad

doi:10.1109/tpwrd.2022.3180681

Cited by 21 publications

(4 citation statements)

References 22 publications

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“…Inadequate controller bandwidth in SAFs can result in the undesirable introduction of notches in the injected grid current, further compromising the overall power quality of the grid as highlighted in [20]& [21]. Consequently, Various controller models with diverse harmonic compensation capabilities have been investigated, as evident in references [23] - [29]. However, the control methods showcased thus far have not considered the influence of the load's passive impedance and load current gradients in the determination of the controller's bandwidth [19].…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Load Network Time Constant Computation Based Solar Active Power Filters Cum Injector for Industrial Loads/Grids

Reddy,

Gupta,

Sekhar

2024

IEEE Access

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This work proposes an efficient integration method of solar energy with industrial nonlinear loads, accounting for dynamic variations in solar power and load harmonic profiles. The involved dynamics necessitate that the solar interface front-end inverters be equipped to handle both harmonic distortions and active power injection characteristics simultaneously. In this work, an instantaneous load and source characteristic mapping is proposed for the solar-interfaced front-end inverter operated as a shunt active power filter cum active power injector in order to accommodate the dynamic variations of the source and load. As per requirement, to separate the load-demanded and switching harmonics, a new load network time constant-based passive filter design diverging from traditional passive filter design methods is demonstrated. Further, a comprehensive explanation of the current controller modeling methodology is elaborated, considering the essential bandwidth required for proficiently managing load-demanded harmonics in both grid injection and drawing modes of operation. Later, in grid injection mode, the influence of grid and system impedance interactions on the power quality is analyzed for weak grid scenarios to derive the requisite bandwidth conditions to ensure resilient power transfer. Subsequently, the experimental validation of the solar interfaced shunt active power filter (SISAPF) with active power injection capability is carried out in both grid power drawing and injection modes, demonstrating the effectiveness of the enhanced bandwidth in handling load-demanded harmonics and solar power dynamic variations.INDEX TERMS EV charging infrastructure, Load time constant, Non-linear loads, passive filter design, Shunt active filter, Solar Inverter, System bandwidth, Three-phase inverter.

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Section: Introductionmentioning

confidence: 99%

Design and Implementation of Load Network Time Constant Computation Based Solar Active Power Filters Cum Injector for Industrial Loads/Grids

Reddy,

Gupta,

Sekhar

2024

IEEE Access

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“…Various capacitor banks, including fixed, switched, and modulated types, have been widely deployed in modern electrical systems to mitigate feeder active and reactive power losses and enhance the system response to events like faults, load switching, and short circuits [6]. Fixed power filters, known for their cost-effectiveness and simple structure, are commonly used in industrial networks to enhance power quality [7].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Shunt Modulated AC Green plug - Switched Filter Compensation Scheme for Nonlinear Loads

Bloul,

Abuhamdah,

Sharaf

et al. 2024

Preprint

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Nonlinear loads, a crucial component of power systems grids, pose a challenge due to harmonics injection. Our research tackles this issue with a novel approach - a modified green plug / switched filter compensation scheme using fuzzy logic controllers. This innovative scheme, presented in the paper, utilizes dual action pulse width modulation to ensure switching functions from harmonic reduction and capacitive compensation for inrush nonlinear type AC loads. The scheme's multi-loop regulations and online switching effectively handle dynamic type slow acting inrush, motorized and other rectifier type-nonlinear loads, enhancing power factor, power quality at source and load buses, and reducing total harmonic distortion at key source and sensitive nonlinear load buses. A simulation model in the MATLAB/SIMULINK software environment demonstrates the efficiency of the proposed FACTS technique. The results show that voltage, current, active power, reactive power, power factor regulation, and effective energy utilization are achievable with the designed FACTS-MFCC-SFC. The switched modulated AC green plug filter significantly improves power quality and enhances power factor in the case of inrush and nonlinear loads.

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“…Various capacitor banks, including fixed, switched, and modulated types, have been widely deployed in modern electrical systems to mitigate feeder active and reactive power losses and enhance the system's response to events like faults, load switching, and short circuits [4]. Fixed power filters, known for their cost-effectiveness and simple structures, are commonly used in industrial networks to enhance power quality [5].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Shunt Modulated AC Green Plug–Switched Filter Compensation Scheme for Nonlinear Loads

Bloul,

Abuhamdah,

Sharaf

et al. 2024

Energies

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Nonlinear loads, crucial components of power system grids, pose a challenge due to harmonics injection. This work tackles this issue with a novel modified green plug–switched filter compensation scheme using fuzzy logic controllers. This innovative scheme presented in this paper utilizes dual action pulse width modulation to ensure switching functions from harmonics reduction and capacitive compensation for inrush nonlinear-type AC loads. The scheme’s multi-loop regulations and online switching effectively handle dynamic-type slow-acting inrush, motorized- and other rectifier-type nonlinear loads, enhancing the power factor, power quality at source and load buses, and reducing the total harmonics distortion at the key source and sensitive nonlinear load buses. A simulation model in the MATLAB/SIMULINK-2023b software environment demonstrates the efficiency of the proposed FACTS technique. The modulated dual mode switched filter-capacitive compensation scheme controlled by a fuzzy logic controller ensures less harmonics distortion and improved voltage stabilization. The results show that voltage, current, active power, reactive power, power factor regulation, and effective energy utilization are achievable with the designed Flexible AC Transmission System-Modulated Filter Capacitor Compensation–Switched Filter Compensator (FACTS-MFCC-SFC). The switched modulated AC green plug filter significantly improves power quality and enhances power factor in cases of inrush and nonlinear loads.

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A Novel Control Scheme Using UAPF in an Integrated PV Grid-Tied System

Cited by 21 publications

References 22 publications

Design and Implementation of Load Network Time Constant Computation Based Solar Active Power Filters Cum Injector for Industrial Loads/Grids

Design and Implementation of Load Network Time Constant Computation Based Solar Active Power Filters Cum Injector for Industrial Loads/Grids

An Efficient Shunt Modulated AC Green plug - Switched Filter Compensation Scheme for Nonlinear Loads

An Efficient Shunt Modulated AC Green Plug–Switched Filter Compensation Scheme for Nonlinear Loads

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