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Sensitivity analysis for transient stability studies

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2 Author(s)
Minussi, C.R. ; Dept. of Electr. Eng., Sao Paulo Univ., Brazil ; Filho, W.F.

The paper presents a method for security control of electric power systems effected by generation reallocation, determined by sensitivity analysis and optimisation. The model is developed considering the dynamic aspects of the network (transient stability). Security control methodology is developed using sensitivity analysis of the security margin in relation to the mechanical power of synchronous machines in the system. The power reallocated to each machine is determined by means of linear programming. To illustrate the proposed methodology, an example is presented which considers a multimachine system composed of 10 synchronous machines, 45 buses, and 72 transmission lines, based on the configuration of a southern Brazilian system

Published in:

Generation, Transmission and Distribution, IEE Proceedings-  (Volume:145 ,  Issue: 6 )

Date of Publication:

Nov 1998

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