Journal
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
Volume 117, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijepes.2019.105646
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Nowadays, microgrids are more likely to operate in an isolated state, and it is of outmost importance to consider various security issues in the management of such systems. This paper proposes a new energy management system for isolated microgrids, which considers the voltage stability and generation contingency constraints. A multi-objective security constrained microgrid energy management system (MOSC-MEMS) based on a coordinated unit commitment-optimal power flow (UC-OPF) framework is introduced, aiming at minimization of real power losses, voltage deviations, and power generation costs. A Pareto optimal front is obtained using the epsilon-constraint method, and the best compromise solution is derived using the Fuzzy Satisfying criterion. Furthermore, a CIGRE benchmark test system based on European medium voltage network is used to demonstrate the performance of the proposed MOSC-MEMS. The simulation results, obtained by implementing the proposed framework in general algebraic modeling system (GAMS), indicate the feasibility of the proposed model and imply the significance of security constraints in the microgrid energy management systems.
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