Probabilistic determination of pilot points for zonal voltage control

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Probabilistic determination of pilot points for zonal voltage control

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Owing to the local nature of voltage and reactive power control, the voltage control is managed in a zonal or regional basis. A new comprehensive scheme for optimal selection of pilot points is proposed in this study. The uncertainties of operational and topological disturbances of the power system are included to provide the robustness of the pilot node set. To reduce the huge number of probable states (i.e. combined states of load and topological changes), a scenario reduction technique is used. The resulted optimal control problem is solved using a new immune-based genetic algorithm. The performance of the proposed method is verified over IEEE 118-bus and realistic Iranian 1274-bus national transmission grids.

Inspec keywords: probability; reactive power control; genetic algorithms; power grids; voltage control; optimal control; power transmission control

Other keywords: power system topological disturbance; immune-based genetic algorithm; optimal pilot point selection; power system operational disturbance; scenario reduction technique; reactive power control; zonal voltage control; optimal control problem; IEEE 118-bus; Iranian 1274-bus national transmission grids; probabilistic determination; pilot point determination

Subjects: Optimisation techniques; Power system control; Voltage control; Optimisation techniques; Optimal control; Control of electric power systems; Other topics in statistics; Power transmission, distribution and supply; Power and energy control; Other topics in statistics

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