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For a Doubly Fed Induction Generator (DFIG) the effect of discharge resistor in series with DC link capacitor is investigated in respect to its transient stability performance. Observations are carried out with different values of resistor for different types of fault and fault location. For the study, 9MW wind farm model in MATLAB simulink module is considered where generators are lumped into a single...
In this paper generalized MATLAB program is developed to find crossing point at potential energy boundary surface (PEBS) through a generalized mathematical approach. In direct method of power system transient stability analysis, an energy function is formulated and then an approximate stability boundary is estimated with unstable equilibrium points at the boundary or region of attraction. However...
In this paper stability analysis of a power system is carried out for three machine systems. The energy function is developed mathematically and potential boundary is formed by using ray method. By forming the fault trajectory, exit point on the boundary is estimated and then taking this exit point as an initial value, Newton's optimization technique is applied to find the controlling unstable equilibrium...
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