Grid disturbance analysis with Modular Load Flow

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 2016Publisher:IEEEJournal:2016 IEEE 6th International Conference on Power Systems (ICPS)

Authors: Pragati P. Gupta; S. D. Varwandkar; M. V. Hariharan;

doi: 10.1109/icpes.2016.7584014

Grid disturbance analysis with Modular Load Flow

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Abstract

Iterative load flow (ILF) is ill-suited for analyzing conditions immediately preceding blackouts since reactive power capacities of most generators are most likely exhausted. This makes choice of PV buses and specifying their voltages difficult. Improper voltage specifications at PV buses may result in non-convergence of ILF. We propose a non-iterative technique - Modular Load Flow (MLF) which does not require voltages to be specified at PV or slack buses. Issues of non-convergence do not arise and result is one-shot definite solution. A major blackout of 31st July in Indian Grid is analyzed.

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Indian Institute of Technology Bombay
India

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