TITLE:
Influences of ±800 kV Yunnan-Guangdong HVDC System on Security and Stability of China Southern Power Grid
AUTHORS:
Baorong Zhou, Xiaoming Jin, Chao Hong, Pei Zhang, Zhigang Wu
KEYWORDS:
HVDC; Security; Stability; AC/DC; Power System; Interaction
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
18,
2013
ABSTRACT: The interaction mechanism between AC and DC systems in a
hybrid AC-DC transmission grid is discussed with PSS/E software. Analysis shows
that receiving-end AC faults may cause much more damage on the HVDC system
operation than the sending-end AC faults in a multi-infeed HVDC system, and the
damage severity depends on the power recovering rate of the HVDC systems. For
HVDC systems with slow power recovering rate, the receiving-end AC faults may
probably be a critical factor to constrain power transfer limits. Larger
capacity of HVDC system means not only higher power transfer-limit of the parallel
connected AC-DC transmission grid, but also more expensive stabilizing cost.