Abstract
Abstract In this paper, the simultaneous optimization of transmission and distribution grid has been proposed. The dynamic model of the grid consists of turbine governors (TG), automatic voltage regulators (AVR) as well as wind turbines, solar power units and energy storage units. Grid stability is obtained by line stability and voltage stability indices and also by conducting eigenvalue analysis of the complete power system grid. Particle Swarm Optimization (PSO) algorithm adjusts the grid control settings (active and reactive power management) to maximize the renewable penetration at all layers of the grid. IEEE 14 bus system in conjunction with a micro grid is used as the test system. The results demonstrate that simultaneous reactive power management of transmission and distribution grid can maximize the renewable penetration at transmission and distribution layers of the grid. However different case studies with different renewable power pro-files at each layer of the grid are remained to be optimized, this study recommends that real-time management of reactive power at all layers of the grid can be a good candidate to deal with intermittency of renewable sources.
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