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Optimization Application for Assessment of Total Transfer Capability Using Transient Energy Function in Interconnection Systems  

Kim, Kyu-Ho (한경대 전기공학과)
Kim, Soo-Nam (현대중공업)
Rhee, Sang-Bong (성균관대 전력IT센터)
Lee, Sang-Keun (강릉원주대 전기공학과)
Song, Kyung-Bin (숭실대 전기공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.12, 2009 , pp. 2311-2315 More about this Journal
Abstract
This paper presents a method to apply energy margin for assesment of total transfer capability (TTC). In order to calculate energy margin, two values of the transient energy function have to be computed. The first value is transient energy that is the sum of kinetic and potential energy at the end of fault. The second is critical energy that is potential energy at controlling UEP(Unstable Equilibrium Point). It is seen that TTC level is determined by not only bus voltage magnitudes and line thermal limits but also transient stability. TTC assessment is compared by the repeated power flow(RPF) method and optimization method.
Keywords
Transient Stability; Energy Margin; Lyapunov Direct Method; UEP; TTC; RPF; SQP;
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  • Reference
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