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Improved Adaptive Droop Control Design for Optimal Power Sharing in VSC-MTDC Integrating Wind Farms

Author

Listed:
  • Xiaohong Ran

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Shihong Miao

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Yingjie Wu

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

Abstract

With the advance of insulated gate bipolar transistor (IGBT) converters, Multi-Terminal DC (MTDC) based on the voltage-source converter (VSC) has developed rapidly in renewable and electric power systems. To reduce the copper loss of large capacity and long distance DC transmission line, an improved droop control design based on optimal power sharing in VSC-MTDC integrating offshore wind farm is proposed. The proposed approach provided a calculation method for power-voltage droop coefficients under two different scenarios either considering local load or not. The available headroom of each converter station was considered as a converter outage, to participate in the power adjustment according to their ability. A four-terminal MTDC model system including two large scale wind farms was set up in PSCAD/EMTDC. Then, the proposed control strategy was verified through simulation under the various conditions, including wind speed variation, rectifier outage and inverter outage, and a three-phase short-circuit of the converter.

Suggested Citation

  • Xiaohong Ran & Shihong Miao & Yingjie Wu, 2015. "Improved Adaptive Droop Control Design for Optimal Power Sharing in VSC-MTDC Integrating Wind Farms," Energies, MDPI, vol. 8(7), pages 1-22, July.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:7:p:7100-7121:d:52533
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    References listed on IDEAS

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    1. Daniel Ludois & Giri Venkataramanan, 2010. "An Examination of AC/HVDC Power Circuits for Interconnecting Bulk Wind Generation with the Electric Grid," Energies, MDPI, vol. 3(6), pages 1-27, June.
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    Cited by:

    1. Mahdi Shahparasti & Pedro Catalán & Nurul Fazlin Roslan & Joan Rocabert & Raúl-Santiago Muñoz-Aguilar & Alvaro Luna, 2018. "Enhanced Control for Improving the Operation of Grid-Connected Power Converters under Faulty and Saturated Conditions," Energies, MDPI, vol. 11(3), pages 1-21, February.
    2. Bianchi, Fernando D. & Domínguez-García, José Luis & Gomis-Bellmunt, Oriol, 2016. "Control of multi-terminal HVDC networks towards wind power integration: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 55(C), pages 1055-1068.
    3. Jaehong Kim & Jitae Hong & Hongju Kim, 2016. "Improved Direct Deadbeat Voltage Control with an Actively Damped Inductor-Capacitor Plant Model in an Islanded AC Microgrid," Energies, MDPI, vol. 9(11), pages 1-15, November.
    4. Paul Stewart & Chris Bingham, 2016. "Electrical Power and Energy Systems for Transportation Applications," Energies, MDPI, vol. 9(7), pages 1-3, July.

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