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Improved techniques for power system voltage stability assessment using energy methods

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2 Author(s)
Overbye, T.J. ; Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA ; DeMarco, C.L.

An improved method of assessing power system voltage stability using energy techniques is presented. The concept of an energy function providing a localized measure of voltage security in a particular portion of the system is developed. A crucial factor in the use of the energy function method is the ability to rapidly determine the appropriate low-voltage solution to use in the energy measure calculation. Also, an improved method of locating power alternative solutions with low associated energy measures is presented. Techniques are demonstrated on the IEEE 118 bus system and a 415-bus system

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Power Systems, IEEE Transactions on  (Volume:6 ,  Issue: 4 )