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Hybridization of battery with pico hydel for frequency regulation of microgrids using synchronverter control.

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Title: Hybridization of battery with pico hydel for frequency regulation of microgrids using synchronverter control.
Authors: Vasudevan, Krishnakumar R.1, Ramachandaramurthy, Vigna K.1 vigna@uniten.edu.my, Venugopal, Gomathi2, Guerrero, Josep M.3
Source: IET Renewable Power Generation (Wiley-Blackwell). Feb2022, Vol. 16 Issue 2, p274-286. 13p.
Subjects: Microgrids, Energy storage, Synchronous generators, Eigenvalues, Cost effectiveness
Abstract: Frequency regulation of autonomous microgrids with intermittent renewables is a tedious task, which requires additional support from energy storage systems (ESS). Ideally, the system requires a faster‐acting ESS to arrest the initial frequency deviation and high energy capacity ESS to restore the frequency to its nominal value. Pico hydel energy storage (PHES) is one such high energy capacity ESS developed from the agricultural pumping systems. However, PHES has a slower response and cannot switch rapidly between pumping and generation modes. Hence, this paper incorporates a battery with PHES to achieve a faster dynamic response and absorb high‐frequency power dynamics. Additionally, a frequency regulation strategy with synchronverter control is proposed to mimic synchronous machines, especially to reduce the rate of change of frequency (ROCOF) and frequency nadir. Firstly, a small‐signal modelling approach is proposed, and it was utilized to assess the system stability through eigenvalue analysis. Subsequently, transient simulations were carried out to gauge the performance of the synchronverter strategy with vector control for frequency regulation. As a result, the frequency nadir and ROCOF were substantially reduced with the synchronverter strategy compared to the vector control based on the simulation results. [ABSTRACT FROM AUTHOR]
Copyright of IET Renewable Power Generation (Wiley-Blackwell) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 154666391
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  Data: Hybridization of battery with pico hydel for frequency regulation of microgrids using synchronverter control.
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  Data: <searchLink fieldCode="AR" term="%22Vasudevan%2C+Krishnakumar+R%2E%22">Vasudevan, Krishnakumar R.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ramachandaramurthy%2C+Vigna+K%2E%22">Ramachandaramurthy, Vigna K.</searchLink><relatesTo>1</relatesTo><i> vigna@uniten.edu.my</i><br /><searchLink fieldCode="AR" term="%22Venugopal%2C+Gomathi%22">Venugopal, Gomathi</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Guerrero%2C+Josep+M%2E%22">Guerrero, Josep M.</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22IET+Renewable+Power+Generation+%28Wiley-Blackwell%29%22">IET Renewable Power Generation (Wiley-Blackwell)</searchLink>. Feb2022, Vol. 16 Issue 2, p274-286. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Microgrids%22">Microgrids</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Synchronous+generators%22">Synchronous generators</searchLink><br /><searchLink fieldCode="DE" term="%22Eigenvalues%22">Eigenvalues</searchLink><br /><searchLink fieldCode="DE" term="%22Cost+effectiveness%22">Cost effectiveness</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Frequency regulation of autonomous microgrids with intermittent renewables is a tedious task, which requires additional support from energy storage systems (ESS). Ideally, the system requires a faster‐acting ESS to arrest the initial frequency deviation and high energy capacity ESS to restore the frequency to its nominal value. Pico hydel energy storage (PHES) is one such high energy capacity ESS developed from the agricultural pumping systems. However, PHES has a slower response and cannot switch rapidly between pumping and generation modes. Hence, this paper incorporates a battery with PHES to achieve a faster dynamic response and absorb high‐frequency power dynamics. Additionally, a frequency regulation strategy with synchronverter control is proposed to mimic synchronous machines, especially to reduce the rate of change of frequency (ROCOF) and frequency nadir. Firstly, a small‐signal modelling approach is proposed, and it was utilized to assess the system stability through eigenvalue analysis. Subsequently, transient simulations were carried out to gauge the performance of the synchronverter strategy with vector control for frequency regulation. As a result, the frequency nadir and ROCOF were substantially reduced with the synchronverter strategy compared to the vector control based on the simulation results. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IET Renewable Power Generation (Wiley-Blackwell) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1049/rpg2.12300
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 274
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      – SubjectFull: Microgrids
        Type: general
      – SubjectFull: Energy storage
        Type: general
      – SubjectFull: Synchronous generators
        Type: general
      – SubjectFull: Eigenvalues
        Type: general
      – SubjectFull: Cost effectiveness
        Type: general
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      – TitleFull: Hybridization of battery with pico hydel for frequency regulation of microgrids using synchronverter control.
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            NameFull: Vasudevan, Krishnakumar R.
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            NameFull: Ramachandaramurthy, Vigna K.
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            NameFull: Venugopal, Gomathi
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            NameFull: Guerrero, Josep M.
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              M: 02
              Text: Feb2022
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              Y: 2022
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