Title :
Full process dynamic voltage stability of 2015 Yunnan-Guangdong ultra-high voltage AC/DC hybrid transmission system
Author :
Shu, H.C. ; Sun, S.Y. ; Song, Q.L. ; Dai, Y.T. ; Zhang, M. ; Wang, Y.N.
Author_Institution :
Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
Till 2015, a large scale, ultra-high voltage and AC/DC hybrid power transmission configuration, including three ±800 kV ultra-high voltage DC systems, will be formed. For such a complex system, dynamic characteristic will become attention focus. Based on the 2015 Yunnan-Guangdong ultrahigh voltage AC/DC hybrid system, full-process dynamic voltage stability is analyzed in this article, for which models of on-load tap changer transformer (ULTC), over-excitation limit and under-excitation limit, and under-voltage load-cutting are established. Under serve disturbances, influence of on-load tap changer transformer action on full-process dynamic voltage of the sending system Yunnan power grid is analyzed, which provides reference for the planning of 2015 Yunnan-Guangdong ultra-high voltage AC/DC hybrid system.
Keywords :
HVDC power transmission; hybrid power systems; dynamic voltage stability; on-load tap changer transformer; over-excitation limit; ultra-high voltage AC-DC hybrid transmission system; under-excitation limit; under-voltage load-cutting; Dynamic voltage scaling; Large-scale systems; On load tap changers; Power grids; Power system dynamics; Power system modeling; Power system planning; Power system stability; Power transmission; Stability analysis; 2015; AC/DC hybrid power transmission system; full process dynamic voltage stability; ultra-high voltage;
Conference_Titel :
Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4934-7
DOI :
10.1109/SUPERGEN.2009.5348336
