A Hybrid Microgrid With DC Connection at Back to Back Converters

Submitted by OEST on May 10, 2015 - 5:28pm

Title	A Hybrid Microgrid With DC Connection at Back to Back Converters
Publication Type	Miscellaneous
Year of Publication	2014
Authors	Majumder R
ISBN Number	1949-3053 VO - 5
Keywords	AC microgrid, AC systems, AC-DC power convertors, AC-DC sides, B2B connection, B2B converters, Back to back converters, connected loads, DC bus connection, dc connection, DC link, dc microgrid, DC microsources, DC system, distributed power generation, grid connected microgrid, hybrid microgrid, hybrid structure, Microgrid, power distribution, Power management, PSCAD, Voltage source converter, voltage support
Abstract	The necessity of an AC or DC microgrid is governed by available micro sources and connected loads. A hybrid structure can ensure a sustainable configuration blending both the forms. In this paper, a hybrid microgrid structure for a grid connected microgrid with DC connection at back to back (B2B) converters is proposed. While a B2B connection between two AC systems could bestow a reliable, isolated and efficient coupling, an extra DC bus connection can facilitate use of the DC micro sources. The DC bus can supply the local DC loads and can also trade part of the power with the AC grids. The voltage support at the DC link (of the B2B converters) can be used for the DC bus formation. Different power management strategies with fixed power references or decentralized power distribution in AC/DC sides are proposed and validated with simulations in PSCAD.
DOI	10.1109/TSG.2013.2263847