The Impact of PLL Dynamics on the Low Inertia Power Grid

A Case Study of Bonaire Island Power System

Yin Sun*, E. C.W. de Jong, Xiongfei Wang, Dongsheng Yang, Frede Blaabjerg, Vladimir Cuk, J. F.G. Cobben

*Kontaktforfatter

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

1 Citation (Scopus)

Resumé

To prepare for the future high penetration level of renewable energy sources, the power grid’s technical boundaries/constraints for the correct operation of powerelectronics interfaced devices need to be further examined and defined. This paper investigates the challenge of integrating Voltage Source Converters (VSC) into low inertia power grids, where the system frequency can vary rapidly due to the low kinetic energy buffer available, which used to be provided by the rotational inertia of synchronous generators. The impact of rate of change of frequency (ROCOF) on the PLL dynamics and its subsequent influence on the VSC power stage output is explained. The Bonaire island network is presented as case study. The performance of the VSC is analyzed under a fast ROCOF event, which is triggered by a short circuit fault. A down-scaled experiment is used to validate the Bonaire island network simulation results. It shows that the phase angle error measured by the synchronous-reference frame phase-locked loop (SRF-PLL) is proportional to the slope of the ROCOF and inversely proportional to its controller integral gain constant.
OriginalsprogEngelsk
Artikelnummer1259
TidsskriftEnergies
Vol/bind12
Udgave nummer7
Sider (fra-til)1-16
Antal sider16
ISSN1996-1073
DOI
StatusUdgivet - apr. 2019

Fingerprint

Phase locked loops
Power System
Inertia
Rate of change
Grid
Voltage
Electric potential
Converter
Directly proportional
Synchronous generators
Power converters
Phase-locked Loop
Kinetic energy
Short circuit currents
Power Converter
Power Electronics
Renewable Energy
Network Simulation
Penetration
Buffer

Citer dette

Sun, Yin ; de Jong, E. C.W. ; Wang, Xiongfei ; Yang, Dongsheng ; Blaabjerg, Frede ; Cuk, Vladimir ; Cobben, J. F.G. / The Impact of PLL Dynamics on the Low Inertia Power Grid : A Case Study of Bonaire Island Power System. I: Energies. 2019 ; Bind 12, Nr. 7. s. 1-16.
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abstract = "To prepare for the future high penetration level of renewable energy sources, the power grid’s technical boundaries/constraints for the correct operation of powerelectronics interfaced devices need to be further examined and defined. This paper investigates the challenge of integrating Voltage Source Converters (VSC) into low inertia power grids, where the system frequency can vary rapidly due to the low kinetic energy buffer available, which used to be provided by the rotational inertia of synchronous generators. The impact of rate of change of frequency (ROCOF) on the PLL dynamics and its subsequent influence on the VSC power stage output is explained. The Bonaire island network is presented as case study. The performance of the VSC is analyzed under a fast ROCOF event, which is triggered by a short circuit fault. A down-scaled experiment is used to validate the Bonaire island network simulation results. It shows that the phase angle error measured by the synchronous-reference frame phase-locked loop (SRF-PLL) is proportional to the slope of the ROCOF and inversely proportional to its controller integral gain constant.",
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The Impact of PLL Dynamics on the Low Inertia Power Grid : A Case Study of Bonaire Island Power System. / Sun, Yin; de Jong, E. C.W.; Wang, Xiongfei; Yang, Dongsheng; Blaabjerg, Frede; Cuk, Vladimir; Cobben, J. F.G.

I: Energies, Bind 12, Nr. 7, 1259, 04.2019, s. 1-16.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

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T2 - A Case Study of Bonaire Island Power System

AU - Sun, Yin

AU - de Jong, E. C.W.

AU - Wang, Xiongfei

AU - Yang, Dongsheng

AU - Blaabjerg, Frede

AU - Cuk, Vladimir

AU - Cobben, J. F.G.

PY - 2019/4

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N2 - To prepare for the future high penetration level of renewable energy sources, the power grid’s technical boundaries/constraints for the correct operation of powerelectronics interfaced devices need to be further examined and defined. This paper investigates the challenge of integrating Voltage Source Converters (VSC) into low inertia power grids, where the system frequency can vary rapidly due to the low kinetic energy buffer available, which used to be provided by the rotational inertia of synchronous generators. The impact of rate of change of frequency (ROCOF) on the PLL dynamics and its subsequent influence on the VSC power stage output is explained. The Bonaire island network is presented as case study. The performance of the VSC is analyzed under a fast ROCOF event, which is triggered by a short circuit fault. A down-scaled experiment is used to validate the Bonaire island network simulation results. It shows that the phase angle error measured by the synchronous-reference frame phase-locked loop (SRF-PLL) is proportional to the slope of the ROCOF and inversely proportional to its controller integral gain constant.

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