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Fast prediction of transient stability margin in systems with SVC control and HVDC link

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2 Author(s)
Tso, S.K. ; Dept. of Manuf. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong ; Cheung, S.P.

Recent developments in transient stability margin (TSM) prediction using the energy-based direct method have included excitation controllers, power system stabilizers (PSSs) and/or static VAr compensators (SVCs). These devices can be represented in their detailed dynamic models to desired degrees of complexity while the proposed “extended” equal-area criterion can still be effectively applied. This paper describes further development of this technique to incorporate an HVDC transmission into the test network for TSM prediction. The method is examined with a practical 17-machine power network representing the South China/Hong Kong system. An SVC control scheme is also installed in a weak bus of the test network for transient stability improvement. The results obtained show that there is no sacrifice in accuracy, speed or reliability of the TSM method with SVC and HVDC realistically incorporated into the study

Published in:

Energy Management and Power Delivery, 1995. Proceedings of EMPD '95., 1995 International Conference on  (Volume:2 )

Date of Conference:

21-23 Nov 1995