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Electrical Engineering

, Volume 101, Issue 4, pp 1133–1143 | Cite as

LCC-HVDC auxiliary emergency power coordinated control strategy considering the effect of electrical connection of the sending-end power grid

  • Congshan LiEmail author
  • Ping He
  • Yikai Li
Original Paper
First Online:
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Abstract

HVDC auxiliary emergency power control can improve the transient stability of AC/DC power system. Compared with other control methods, HVDC auxiliary emergency power control has the advantages of quick response, large adjustment capacity and less investment, so it is the primary choice to improve the transient stability. Taking multi-infeed DC (MIDC) transmission system as the research object, based on the definition of the traditional power support factor, considering the influence of the electrical connection of the sending-end power grid on the power support, a new power support factor (NPSF) is defined. Based on the NPSF, multiple DC coordination sharing strategies are implemented when one of the DC faults occurs. Finally, MIDC is built on the PSCAD. Single DC auxiliary power control and multiple DC auxiliary power coordinated control were simulated, respectively. Rationality of the definition of NPSF is verified, and it is concluded that multiple DC joint power control is superior to single DC.

Keywords

DC auxiliary power control Transient stability Multi-infeed DC Traditional power support factor New power support factor 
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Notes

Acknowledgements

This work was jointly supported by the National Natural Science Foundation of China (51607158, 51507157), Foundation of Henan Educational Committee (16A470016), and key scientific and technological project of Henan Province (161100211600).

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© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Electrical and Information EngineeringZhengzhou University of Light IndustryZhengzhouChina

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