An approach for the integration of renewable distributed generation in hybrid DC/AC microgrids |
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| Affiliation: | 1. Bingol University, Engineering Faculty, Department of Electrical and Electronics Engineering, Turkey;2. Inonu University, Engineering Faculty, Department of Electrical and Electronics Engineering, Turkey;1. College of Electrical Engineering, Shanghai University of Electric Power, Shanghai 200090, China;2. School of Electrical Engineering, Computing and Mathematical Sciences, Curtin University, Perth 6845, Australia;3. Electric Power Research Institute, State Grid Shanghai Municipal Electric Power Company, Shanghai 200437, China;1. Dept. of Electrical Engineering, Faculty of Engineering, Suez Canal University, 41522 Ismailia, Egypt;2. Faculty of Energy Systems and Nuclear Science, University of Ontario Institute of Technology, Oshawa, L1H7K4 ON, Canada;3. Sharaf Energy Inc., Fredericton, New Brunswick, Canada |
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| Abstract: | This paper presents an investigation of a hybrid DC/AC integration paradigm to establish microgrids (MGs) by using a conventional three-phase local power delivery system. This approach adds an additional DC power line to the local power distribution system in order to collect energy generated by distributed domestic renewable sources. The local renewable distributed generation (DG) works in conjunction with the conventional grid utility to reduce the power draw from the grid. Researchers designed an energy conversion station to mix energy from the local DGs with energy from the grid utility. This approach, therefore, uses a continuous energy mixing strategy for DC integration of local generation and grid energy to supply energy to MG consumers via the conventional three-phase power distribution system. Thus, local distributed renewable generators do not have to contend with AC integration problems, such as AC stability and line synchronization. This approach can facilitate the transformation of conventional local power distribution systems into reliable MGs in an affordable way for stakeholders and it is a step towards construction of future smart grids. |
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