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On Integration of Solid-State Transformer With Zonal DC Microgrid

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4 Author(s)
Xu She ; Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA ; Huang, A.Q. ; Lukic, S. ; Baran, M.E.

The contribution of this paper has been focused on investigating a new microgrid architecture that integrates the solid-state transformer with zonal dc microgrids. By utilizing the dc and ac links of the solid-state transformer, both ac and dc networks can access the distribution system, which renders the coordinate management of the power and guarantees high power supply reliability. In addition, the presented system together with the proposed power management strategy can minimize the effect of newly established zonal dc microgrid to the existing power grid, of which promises a better stability. To this end, this paper takes the photovoltaic and battery as the typical renewable energy resource and energy storage device, and develops a simulation platform for system study. Simulation results are shown to demonstrate the feasibility of the proposal.

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Smart Grid, IEEE Transactions on  (Volume:3 ,  Issue: 2 )