A Synchronization Method for Grid Converters with Enhanced Small-Signal and Transient Dynamics

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An increasing integration of voltage source based renewable energy systems into the power system is a global trend, that has led to requirements for converter control during low voltage and fault situations. To guarantee stable operation, grid synchronization is a key factor, which greatly influences the stability and ride-through performance of the converter. This paper proposes an improved grid synchronization technique, which enhances the transient performance of the converter under severe grid conditions, such as three phase faults and voltage phase jumps. This is achieved by combining a low bandwidth Synchronous Reference Frame Phase-Locked Loop (SRF-PLL) together with a feed-forward term. This combination effectively results in a synchronization unit including high noise immunity, e.g. enhanced small-signal performance and a fast dynamic response with a phase tracking capability below 5 ms. The proposed synchronization unit is tested during phase jumps and symmetrical three-phase faults to analyze its performance, which is validated through simulations and experimental results.
OriginalsprogEngelsk
TitelProceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL)
Antal sider7
ForlagIEEE Press
Publikationsdato10 sep. 2018
Sider1-7
Artikelnummer8460113
ISBN (Trykt)978-1-5386-5542-9
ISBN (Elektronisk)978-1-5386-5541-2
DOI
StatusUdgivet - 10 sep. 2018
Begivenhed19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italien
Varighed: 25 jun. 201828 jun. 2018

Konference

Konference19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018
LandItalien
ByPadova
Periode25/06/201828/06/2018
NavnIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

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Synchronization
Electric potential
Phase locked loops
Dynamic response
Bandwidth

Citer dette

Steinkohl, J., Taul, M. G., Wang, X., Blaabjerg, F., & Hasler, J-P. (2018). A Synchronization Method for Grid Converters with Enhanced Small-Signal and Transient Dynamics. I Proceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL) (s. 1-7). [8460113] IEEE Press. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) https://doi.org/10.1109/COMPEL.2018.8460113
Steinkohl, Joachim ; Taul, Mads Graungaard ; Wang, Xiongfei ; Blaabjerg, Frede ; Hasler, Jean-Philippe. / A Synchronization Method for Grid Converters with Enhanced Small-Signal and Transient Dynamics. Proceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE Press, 2018. s. 1-7 (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ).
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abstract = "An increasing integration of voltage source based renewable energy systems into the power system is a global trend, that has led to requirements for converter control during low voltage and fault situations. To guarantee stable operation, grid synchronization is a key factor, which greatly influences the stability and ride-through performance of the converter. This paper proposes an improved grid synchronization technique, which enhances the transient performance of the converter under severe grid conditions, such as three phase faults and voltage phase jumps. This is achieved by combining a low bandwidth Synchronous Reference Frame Phase-Locked Loop (SRF-PLL) together with a feed-forward term. This combination effectively results in a synchronization unit including high noise immunity, e.g. enhanced small-signal performance and a fast dynamic response with a phase tracking capability below 5 ms. The proposed synchronization unit is tested during phase jumps and symmetrical three-phase faults to analyze its performance, which is validated through simulations and experimental results.",
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Steinkohl, J, Taul, MG, Wang, X, Blaabjerg, F & Hasler, J-P 2018, A Synchronization Method for Grid Converters with Enhanced Small-Signal and Transient Dynamics. i Proceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL)., 8460113, IEEE Press, IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) , s. 1-7, Padova, Italien, 25/06/2018. https://doi.org/10.1109/COMPEL.2018.8460113

A Synchronization Method for Grid Converters with Enhanced Small-Signal and Transient Dynamics. / Steinkohl, Joachim; Taul, Mads Graungaard; Wang, Xiongfei; Blaabjerg, Frede; Hasler, Jean-Philippe.

Proceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE Press, 2018. s. 1-7 8460113 (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ).

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

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Steinkohl J, Taul MG, Wang X, Blaabjerg F, Hasler J-P. A Synchronization Method for Grid Converters with Enhanced Small-Signal and Transient Dynamics. I Proceedings of 2018 IEEE 19th Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE Press. 2018. s. 1-7. 8460113. (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ). https://doi.org/10.1109/COMPEL.2018.8460113