Voltage and Current Quality Improvement by Solar Photovoltaic fed ZSI-DVR

Prasad, Miska; Akella, Ashok Kumar

doi:10.1016/j.procs.2017.12.057

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…The comparative study with the existing method clearly indicates that a harmonic distortion in the source current measured by the proposed system is 1.2%, which is below the average THD level obtained by the systems of Kausal and Basak 19 ; Piradhan and Mishra 20 ; Divyalakshmi and Subramaniam 21 ; and Prasad and Akella. 22…”

Section: Case 3: Unbalanced Non-linear Loads At Varying Wind Speedmentioning

confidence: 99%

An Experimental Investigation on solar PV fed modular STATCOM in WECS using Intelligent controller

Vanaja¹,

Albert

Stonier³

2021

Int Trans Electr Energ Syst

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This paper describes an optimal way to produce and utilize green power with better energy efficiency. The power quality issues in wind energy conversion systems (WECS) are improved by implementing a photovoltaic (PV) based modular statcom. Modular statcom consist of a modular multilevel inverter (MMI). The peculiar feature of the MMI is that it does not need any auxiliary circuit to provide the negative voltage levels. It is inherent in nature. The DC link of the modular statcom is fed from the PV source, battery, and Flywheel. The excess power obtained from PV and WECS is stored in the battery and Flywheel. Continuous power can be supplied to the load without any interruption is an added advantage of the proposed system. A landsman converter is implemented for the proposed PV system to provide regulated and constant DC supply to the modular statcom.An enhanced second order generalized integrator (ESOGI) with fuzzy logic controller (FLC) is employed to extract the source reference current signal and produce gating pulses for the modular statcom. To verify the performance of the PV-integrated modular statcom, the simulation and experimental studies are performed under specific load conditions. Results show that the proposed system with the ESOGI method reduces the current distortions and satisfies the IEEE-519 standards. K E Y W O R D Ssolar photovoltaic, wind conversion system, enhanced second order generalized integrator, fuzzy logic controller, total harmonic distortion List of Symbols And abbreviations: P m , wind power equation; ρ, intensity of air; N L , number of levels; V p , peak voltage; r, radius of turbine; v, velocity of wind; Cp, power coefficient; λ, tip velocity proportion; β, pitch angle; ω, angular velocity; η, diode ideality factor; k, Boltzmann constant; q, electron charge; φ, irradiance; Tc, cell temperature; egap, band gap; Nc, number of cells in series of the PV module; Cpv, overall heat capacity of the PV module; Kin, transmittance absorption factor of PV module; Kloss, overall heat loss coefficient; Ta, ambient temperature; A, is the area of the PV module; V t , terminal voltage; Q pa Q pb Q pc , in-phase voltage template; Q qa Q qb Q qc , quadrature voltage template; v sab , v sbc v sca , source voltages; I loss , loss component; I qq ,

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Section: Case 3: Unbalanced Non-linear Loads At Varying Wind Speedmentioning

confidence: 99%

An Experimental Investigation on solar PV fed modular STATCOM in WECS using Intelligent controller

Vanaja¹,

Albert

Stonier³

2021

Int Trans Electr Energ Syst

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“…There are three topologies of DSTATCOM that is, VSC, Current Source Converter (CSC), and Impedance Source Converter (ZSC). 26,27 In practice, DVR, DSTATCOM, and UPQC based on CSC are not used due to high cost, higher losses, and also they do not have applications in multilevel configurations. 28 The VSC-based topology has advantages over CSC-based topology such as cheaper, flexible overall control, no need of blocking diodes, and capability of multilevel operation.…”

Section: Introductionmentioning

confidence: 99%

“…VSC is the backbone of DSTATCOM, which converts the DC input voltage into three‐phase AC voltage with the same frequency as that of distribution system according to the requirement. There are three topologies of DSTATCOM that is, VSC, Current Source Converter (CSC), and Impedance Source Converter (ZSC) 26,27 . In practice, DVR, DSTATCOM, and UPQC based on CSC are not used due to high cost, higher losses, and also they do not have applications in multilevel configurations 28 .…”

Section: Introductionmentioning

confidence: 99%

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

Ullah

Hanif

2021

Int Trans Electr Energ Syst

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Nowadays, power quality (PQ) issues are gaining considerable attention to both electrical utilities and end-users as they are causing significant financial losses to industrial customers. Among PQ issues, voltage sag and swell are the most important and frequently occurring problems for sensitive load. Voltage sag/swell can be mitigated using a distribution static compensator (DSTATCOM), which is fast, effective, and flexible custom power device. Its performance mostly depends upon the designed control scheme for the switching of voltage source converter (VSC). In this research work, a fused control scheme based on second-order super twisting algorithm (STA) and sliding mode control (SMC) for VSC of DSTATCOM is developed, that can effectively eliminate the effects of voltage sag/swell as well as compensate active and reactive power in distribution system. STA along with standard SMC is used to eliminate the chattering effect which is the drawback of SMC alone, while keeping its other properties such as robustness, faster response time, and insensitive to load variation. The proposed control scheme for DSTATCOM is simulated on SimPower system toolbox of MATLAB/Simulink. Both linear as well as nonlinear loads have been considered for the purpose of static and dynamic analysis. Simulation results show that the super twisting sliding mode control (STSMC) for DSTATCOM can effectively detect and correct voltage sag/swell and compensate active and reactive power within 2.5 milliseconds as per semiconductor processing equipment voltage sag immunity standard for sensitive load (SEMI F-47 Standard). Total harmonic distortions (THD) measured in all simulated cases is found to be less than 5%. The frequency response analysis shows good stability properties of developed system.

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“…The VSI has been traditionally employed in the DVR configuration [9]. In [10], the performance of the DVR system based on the VSI is investigated, and simulation is performed for voltage sag and voltage swell situations.…”

Section: Introductionmentioning

confidence: 99%

A Novel Solar Photovoltaic Fed TransZSI-DVR for Power Quality Improvement of Grid-Connected PV Systems

et al. 2021

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Voltage and Current Quality Improvement by Solar Photovoltaic fed ZSI-DVR

Cited by 9 publications

References 16 publications

An Experimental Investigation on solar PV fed modular STATCOM in WECS using Intelligent controller

An Experimental Investigation on solar PV fed modular STATCOM in WECS using Intelligent controller

Power quality improvement in distribution system using distribution static compensator with super twisting sliding mode control

A Novel Solar Photovoltaic Fed TransZSI-DVR for Power Quality Improvement of Grid-Connected PV Systems

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