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Voltage Coordination in Multi-Area Power Systems via Distributed Model Predictive Control

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3 Author(s)
Mohammad Moradzadeh ; SYSTeMS Research Group, Department of Electrical Energy, Systems and Automation, University of Ghent, Ghent, Belgium ; RenĂ© Boel ; Lieven Vandevelde

This paper proposes a coordination paradigm for properly coordinating local control actions, taken by many communicating control agents (CAs), in order to maintain multi-area power system voltages within acceptable bounds. The proposed control scheme is inspired by distributed model predictive control (DMPC), and relies on the communication of planned local control actions among neighboring CAs, each possibly operated by an independent transmission system operator (TSO). Each CA, knowing a local model of its own area, as well as reduced-order QSS models of its immediate neighboring areas, and assuming a simpler equivalent PV models for its remote neighbors, performs a greedy local optimization over a finite window in time, communicating its planned control input sequence to its immediate neighbors only. The good performance of the proposed real-time model-based feedback coordinating controller, following major disturbances, is illustrated using time-domain simulation of the well-known realistic Nordic32 test system, assuming worst-case conditions.

Published in:

IEEE Transactions on Power Systems  (Volume:28 ,  Issue: 1 )