Demonstration of cluster-based power system automation for future smart grids

The increase of the share of distributed generations (DGs) based on renewable energy sources, which mostly reside in distribution networks, in current power systems can cause stability problems because traditionally the power is fed by bulk power plants through transmission systems. Accordingly, clustering power system approach (CPSA) has been devised to facilitate the integration of DGs to the power systems. Its key concept is to expand the mature control scheme and action of the transmission systems down to the distribution networks. Furthermore, the CPSA is aimed to be a solution for achieving future smart grids. In this paper, the principle of the CPSA and a strategy for CPSA-based power system operation for smart grids automation are delineated first. Then, a load flow calculation application is introduced for the demonstration of the CPSA-based power system operation. In the demonstration, online load flow calculation is performed under an exemplified interconnected clusters structure.

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