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Improvements in the grid connection of renewable generators with full power converters

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  • Ramirez, Dionisio
  • Martinez, Sergio
  • Carrero, Carmelo
  • Platero, Carlos A.

Abstract

The increasing penetration of electricity generation from renewable energy is posing new technical challenges to the operation of power systems. Some of them are related to the different electrical behavior of the generators when compared with traditional directly coupled synchronous generators. This work is focused on the case of renewable generators connected to the grid through full power electronic converters and the improvement of its response to voltage sags. It is proposed a system based on the use of an electronic on load tap changer to increase the generator contribution to the short circuit current during grid voltage depressions, to cooperate in the post-fault voltage recovery of the power system. It is also presented a specific control system on the converter, based on a nonlinear current source, to secure the necessary fast response. An experimental validation of the developed system has been carried out by building and testing a laboratory prototype. The results of the more relevant tests are also presented.

Suggested Citation

  • Ramirez, Dionisio & Martinez, Sergio & Carrero, Carmelo & Platero, Carlos A., 2012. "Improvements in the grid connection of renewable generators with full power converters," Renewable Energy, Elsevier, vol. 43(C), pages 90-100.
    • Handle: RePEc:eee:renene:v:43:y:2012:i:c:p:90-100
    DOI: 10.1016/j.renene.2011.11.054
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    References listed on IDEAS

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    1. Fernandez, L.M. & Garcia, C.A. & Jurado, F., 2010. "Operating capability as a PQ/PV node of a direct-drive wind turbine based on a permanent magnet synchronous generator," Renewable Energy, Elsevier, vol. 35(6), pages 1308-1318.
    2. Monfared, Mohammad & Madadi Kojabadi, Hossein & Rastegar, Hasan, 2008. "Static and dynamic wind turbine simulator using a converter controlled dc motor," Renewable Energy, Elsevier, vol. 33(5), pages 906-913.
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    Cited by:

    1. Obara, Shin’ya & Utsugi, Yuta & Ito, Yuzi & Morel, Jorge & Okada, Masaki, 2015. "A study on planning for interconnected renewable energy facilities in Hokkaido, Japan," Applied Energy, Elsevier, vol. 146(C), pages 313-327.
    2. Barote, L. & Marinescu, C., 2014. "Software method for harmonic content evaluation of grid connected converters from distributed power generation systems," Energy, Elsevier, vol. 66(C), pages 401-412.
    3. Prieto-Araujo, E. & Olivella-Rosell, P. & Cheah-Mañe, M. & Villafafila-Robles, R. & Gomis-Bellmunt, O., 2015. "Renewable energy emulation concepts for microgrids," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 325-345.
    4. Nasiri, M. & Milimonfared, J. & Fathi, S.H., 2015. "A review of low-voltage ride-through enhancement methods for permanent magnet synchronous generator based wind turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 47(C), pages 399-415.
    5. He Wang & Zhijie Ma, 2021. "Regulation Characteristics and Load Optimization of Pump-Turbine in Variable-Speed Operation," Energies, MDPI, vol. 14(24), pages 1-21, December.
    6. Giannakis, Andreas & Karlis, Athanasios & Karnavas, Yannis L., 2018. "A combined control strategy of a DFIG based on a sensorless power control through modified phase-locked loop and fuzzy logic controllers," Renewable Energy, Elsevier, vol. 121(C), pages 489-501.
    7. Ramirez, Dionisio & Martinez-Rodrigo, Fernando & de Pablo, Santiago & Carlos Herrero-de Lucas, Luis, 2017. "Assessment of a non linear current control technique applied to MMC-HVDC during grid disturbances," Renewable Energy, Elsevier, vol. 101(C), pages 945-963.
    8. Paiva, J.E. & Carvalho, A.S., 2013. "Controllable hybrid power system based on renewable energy sources for modern electrical grids," Renewable Energy, Elsevier, vol. 53(C), pages 271-279.
    9. Mahesh, Aeidapu & Sandhu, Kanwarjit Singh, 2015. "Hybrid wind/photovoltaic energy system developments: Critical review and findings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 52(C), pages 1135-1147.
    10. Hemant Ahuja & Arika Singh & Sachin Sharma & Gulshan Sharma & Pitshou N. Bokoro, 2022. "Coordinated Control of Wind Energy Conversion System during Unsymmetrical Fault at Grid," Energies, MDPI, vol. 15(13), pages 1-15, July.
    11. Mahela, Om Prakash & Shaik, Abdul Gafoor, 2016. "Comprehensive overview of grid interfaced wind energy generation systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 57(C), pages 260-281.

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