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This paper presents the application of Strength Pareto Evolutionary Algorithm (SPEA) to find the optimal solution of VAr expansion problem considering the enhancement of Available Transmission Capacity (ATC). The problem is formulated as a nonlinear constrained multi-objective optimization problem. The aim is to obtain an optimal allocation of VAr devices that is optimal in terms of minimizing the...
This paper proposes the application of metaheuristic methods to Reactive Power Planning (RPP). RPP involves optimal allocation of reactive sources to satisfy voltage constraints during normal and contingency states. The main objective of the proposed RPP is to make a trade-off between economy and security by determining the optimal combination of fast and slow controls (load shedding, new slow and...
This paper deals with optimal allocation of fast and slow VAR devices under different load levels. These devices are utilized to maintain system security in normal and contingency states, where corrective and preventive controls are implemented for the contingency cases. Load shedding and fast VAR devices are used in the corrective state in order to quickly restore system stability even though they...
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