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Dynamic performance enhancement of grid tied PV system under abnormal grid conditions employing an effective peak current‐limiting control strategy.

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Title: Dynamic performance enhancement of grid tied PV system under abnormal grid conditions employing an effective peak current‐limiting control strategy.
Authors: Bhoreddy, Malakondareddy1 (AUTHOR), Subramanium, Senthilkumar1 (AUTHOR) skumar@nitt.edu, Nanjappagounder, Ammasai Gounden1 (AUTHOR), Isaac, Anand1 (AUTHOR), Natarajan, Babu1 (AUTHOR)
Source: International Transactions on Electrical Energy Systems. Oct2021, Vol. 31 Issue 10, p1-17. 17p.
Subject Terms: *Photovoltaic power systems, *Electric inverters, *Phase-locked loops
Abstract: Summary: An effective peak current‐limiting control strategy is presented in this paper, for improved dynamic performance of a grid‐connected photovoltaic (GCPV) inverter under unbalanced grid voltages. A simple analysis is developed for calculating the rated inverter power under unbalanced grid voltages without tripping the PV inverter for reliable operation. The active power oscillations induced due to the unbalance in the grid voltages are minimized by equating the active power oscillating terms to zero in the reference current generation. The prime focus of this work is on estimating the reference currents and limiting the inverter currents to rated value and providing low‐voltage ride‐through capability by judiciously balancing positive and negative sequence currents. A prototype hardware is developed in the laboratory and the proposed control scheme is implemented using dSPACE 1103 real‐time controller board. A solar simulator has been used to replicate the PV array. The simulation (MATLAB/Simulink) and the experimental results establish that the proposed controller scheme effectively minimizes the oscillation in active power and limits the inverter currents. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 152762508
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Dynamic performance enhancement of grid tied PV system under abnormal grid conditions employing an effective peak current‐limiting control strategy.
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  Data: <searchLink fieldCode="AR" term="%22Bhoreddy%2C+Malakondareddy%22">Bhoreddy, Malakondareddy</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Subramanium%2C+Senthilkumar%22">Subramanium, Senthilkumar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> skumar@nitt.edu</i><br /><searchLink fieldCode="AR" term="%22Nanjappagounder%2C+Ammasai+Gounden%22">Nanjappagounder, Ammasai Gounden</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Isaac%2C+Anand%22">Isaac, Anand</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Natarajan%2C+Babu%22">Natarajan, Babu</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Transactions+on+Electrical+Energy+Systems%22">International Transactions on Electrical Energy Systems</searchLink>. Oct2021, Vol. 31 Issue 10, p1-17. 17p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Photovoltaic+power+systems%22">Photovoltaic power systems</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+inverters%22">Electric inverters</searchLink><br />*<searchLink fieldCode="DE" term="%22Phase-locked+loops%22">Phase-locked loops</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Summary: An effective peak current‐limiting control strategy is presented in this paper, for improved dynamic performance of a grid‐connected photovoltaic (GCPV) inverter under unbalanced grid voltages. A simple analysis is developed for calculating the rated inverter power under unbalanced grid voltages without tripping the PV inverter for reliable operation. The active power oscillations induced due to the unbalance in the grid voltages are minimized by equating the active power oscillating terms to zero in the reference current generation. The prime focus of this work is on estimating the reference currents and limiting the inverter currents to rated value and providing low‐voltage ride‐through capability by judiciously balancing positive and negative sequence currents. A prototype hardware is developed in the laboratory and the proposed control scheme is implemented using dSPACE 1103 real‐time controller board. A solar simulator has been used to replicate the PV array. The simulation (MATLAB/Simulink) and the experimental results establish that the proposed controller scheme effectively minimizes the oscillation in active power and limits the inverter currents. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=152762508
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/2050-7038.12542
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 1
    Subjects:
      – SubjectFull: Photovoltaic power systems
        Type: general
      – SubjectFull: Electric inverters
        Type: general
      – SubjectFull: Phase-locked loops
        Type: general
    Titles:
      – TitleFull: Dynamic performance enhancement of grid tied PV system under abnormal grid conditions employing an effective peak current‐limiting control strategy.
        Type: main
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            NameFull: Bhoreddy, Malakondareddy
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            NameFull: Subramanium, Senthilkumar
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            NameFull: Nanjappagounder, Ammasai Gounden
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            NameFull: Isaac, Anand
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            NameFull: Natarajan, Babu
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            – D: 01
              M: 10
              Text: Oct2021
              Type: published
              Y: 2021
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              Value: 20507038
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              Value: 31
            – Type: issue
              Value: 10
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            – TitleFull: International Transactions on Electrical Energy Systems
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