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Recently, the deregulation and liberalization in power market increase the competition in retail and power sector. Therefore, power company needs to reduce operational cost and maximizes the profit by operating generator with higher efficiency. On the other hand, energy consumption is increasing rapidly due to the proliferation of all-electric houses. So the controllable load such as electric water...
Recently, a smart grid has been attracted attention from the background of the introduction promotion of natural energy. At present, a smart grid based on AC grid has been proposed. However, no paper or article has been presented or published on a smart grid based on DC grid. This paper presents a AC/DC hybrid power system. The system has advantages on both DC and AC grid. The power system consists...
Recently, smart grids are attracting attention. Already, a smart grid based on AC grid is proposed. However, due to the power fluctuation from renewable energy sources, voltage and frequency deviations are occurred in island power systems. This paper presents an islanding operation method of DC smart grid. The power system consists of photovoltaics, wind generators and controllable loads. In this...
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