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Application and research on a variety of SMES outer ring control strategies for inhibiting UHV tie-line's power oscillation

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4 Author(s)
Zhengxi Chen ; Sch. of Electr. Eng., Wuhan Univ., Wuhan, China ; Zhonghua Zhang ; Caibin Liu ; Shuo Yang

The UHV experimental demonstration project of Chang Zhi-Nan Yang-Jing Men is currently the only tie-line in two large areas' power grid between North and Central China. Since it was put into operation in 2008, the tie-line produced substantial power fluctuations. The Superconductor Magnetics Energy System (SMES) device had the nondestructive efficient energy storage and quick electrical energy conversion properties. The mechanism of SMES device inhibiting power oscillation was analyzed, the electro-magnetic transient model was established in the two areas and four machines system containing SMES. A variety of SMES outer-ring control strategies were employed to execute simulation and calculation in order to inhibit tie-line's power oscillation, and it compared the advantages and disadvantages of several control strategies. Simulation results indicated that: The SMES device based on a variety of outer-ring control strategies can efficiently inhibit UHV tie-line's power oscillation and enhance the stability level of the two areas' power grid between North and Central China.

Published in:

Power Engineering and Automation Conference (PEAM), 2011 IEEE  (Volume:2 )

Date of Conference:

8-9 Sept. 2011