Simulation model of a protection scheme for active distribution networks

Belloni, Federico; Chiumeo, C.; Gandolfi, Chiara; Pugliese, Salvatore

doi:10.24084/repqj11.229

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…The model comprises the 5 MVA interface converters, each made of two three-phase inverters in interleaved configuration, together with their controls. AC grids are equipped with grid protections implementing logic selectivity and automatic reclosure cycles [5]. Both interface converters are connected at the end of two distribution feeder, one of length 15 km, in the first AC grid (G1), and the other of 5 km, in the other AC grid (G2) (Fig.…”

Section: Simulation Resultsmentioning

confidence: 99%

Reverse supply of an AC distribution feeder through a Medium Voltage DC link

Belloni¹,

Chiumeo²,

Gandolfi³

et al. 2016

REPQJ

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Abstract. Medium Voltage Direct Current grids seems a promising solution for meshing AC grids, in order to enhance their distributed generators hosting capacity. The DC link is created through power electronics interface converters, which allow implementing different functions through suited control strategies. In particular, the paper investigate the possibility of supplying AC connected loads in island operation, i.e. separated from the mains, when a fault occurs in one of the AC grids. A 5 MW link is considered in the paper. Relevant power converters has been designed and modelled in a digital simulation environment. A complex control strategy for the management of the complete process of island supply and reconnection to mains, involving also communication between converters and grid protections, has been implemented and tested through simulations. Simulation results confirms the effectiveness of the proposed approach.

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Section: Simulation Resultsmentioning

confidence: 99%