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Improved voltage and reactive power distribution factors for outage studies

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2 Author(s)
Singh, S.N. ; Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India ; Srivastava, S.C.

This paper presents the development of a simple and fast method to calculate a new set of distribution factors using the sensitivity property of Newton-Raphson load flow Jacobian at a base operating point. These factors have been used to calculate the post-outage voltages and reactive power output of the sources following outage of a transmission branch or a generator. The accuracy of post-outage results using these distribution factors has been established with respect to full AC load flow results on IEEE 14-bus, IEEE 57-bus and a practical 75-bus Indian power systems

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Power Systems, IEEE Transactions on  (Volume:12 ,  Issue: 3 )