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A Decomposition Approach to Preventive Planning of Reactive Volt Ampere (VAR) Source Expansion

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3 Author(s)
Nadira, R. ; Scientific Systems, Inc. 54 CambridgePark Drive Cambridge, Massachusetts 02140 ; Lebow, W.M. ; Usoro, P.B.

This paper presents a two-level approach for determining the minimum cost expansion pattern (location and size) of new reactive compensation sources that would ensure steady-state secure operation of large scale power systems not only under a given set of operating conditions for the intact system, but also under contingency conditions. This preventive planning problem is decomposed into a var dispatch (Level 1) problem and a var allocation (Level 2) problem which are related together using the generalized Benders decomposition. The methodology has been implemented in a prototype computer package which can handle power systems with up to 1500 buses. Results of testing the package with practical power systems of different sizes and characteristics are presented.

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Power Systems, IEEE Transactions on  (Volume:2 ,  Issue: 1 )