Padiyar, KR and Ghosh, KK (1989) Direct stability evaluation of power systems with detailed generator models using structure-preserving energy functions. In: International Journal of Electrical Power & Energy Systems, 11 (1). pp. 47-56.
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Energy-based direct methods for transient stability analysis are potentially useful both as offline tools for planning purposes as well as for online security assessment. In this paper, a novel structure-preserving energy function (SPEF) is developed using the philosophy of structure-preserving model for the system and detailed generator model including flux decay, transient saliency, automatic voltage regulator (AVR), exciter and damper winding. A simpler and yet general expression for the SPEF is also derived which can simplify the computation of the energy function. The system equations and the energy function are derived using the centre-of-inertia (COI) formulation and the system loads are modelled as arbitrary functions of the respective bus voltages. Application of the proposed SPEF to transient stability evaluation of power systems is illustrated with numerical examples.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier science.|
|Keywords:||Short-term dynamics;transient stability;Lyapunov method.|
|Department/Centre:||Division of Electrical Sciences > Electrical Engineering|
|Date Deposited:||13 Oct 2010 08:36|
|Last Modified:||13 Oct 2010 08:36|
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