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VAr planning for power system security

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2 Author(s)
Obadina, O.O. ; Dept. of Electr. Eng., Calgary Univ., Alta., Canada ; Berg, G.J.

A method is presented for identifying a dispersed reactive power (VAr) supply that can enhance power systems' pre- and post-contingency voltage security, subject to technical and economic constraints. The problem is formulated in two stages. The first stage involves a nonlinear optimization problem which minimizes the amount of reactive supply. The second stage uses a mixed-integer linear program which optimizes the number of candidates buses for VAr support. Results of application of the method to an example system are presented

Published in:

Power Systems, IEEE Transactions on  (Volume:4 ,  Issue: 2 )