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Optimum allocation of reactive power for voltage stability improvement in AC-DC power systems

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3 Author(s)
Thukaram, D. ; Dept. of Electr. Eng., Indian Inst. of Sci., Bangalore, India ; Jenkins, L. ; Visakha, K.

The dependence of the system voltage stability on reactive power distribution forms the basis for reactive power optimisation. The technique attempts to utilise fully the reactive power sources in the system to improve the voltage stability and profile as well as meeting the reactive power requirements at the AC-DC terminals to facilitate the smooth operation of DC links. The method involves successive solution of steady-state power flows and optimisation of reactive power control variables using linear programming techniques. The proposed method has been applied to a few systems and the results obtained on a real-life equivalent 96-bus AC and a two-terminal DC system are presented for illustration.

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Generation, Transmission and Distribution, IEE Proceedings-  (Volume:153 ,  Issue: 2 )