Title: Configurations and Earthing of HVDC Grids
Authors: De Boeck, Steven ×
Tielens, Pieter
Leterme, Willem
Van Hertem, Dirk #
Issue Date: 25-Jul-2013
Host Document: Proc. IEEE PES GM 2013 pages:1-5
Conference: IEEE Power & Energy Society General Meeting edition:2013 location:Vancouver, Canada date:21-25 July 2013
Abstract: HVDC grids are considered to be essential building
blocks for the future upgrade of the existing AC power system
and as a means to transport the expected massive amounts of
renewable energy from remote sources to the load centers. HVDC
systems exist for over 50 years, yet meshed DC grids do not exist
so far. For point-to-point HVDC connections, there is a certain
freedom in choosing the configuration and earthing scheme. For
a grid, different converter arrangements and earthing schemes
can be considered. The choices made will influence how the
grid will look like, the components in the grid and their rating,
the operating principles, the protection philosophy, the degree
to which the grid is extensible and the overall reliability and
inherent redundancy. Clearly, it will influence investment and
operating costs as well.
This paper provides a qualitative overview of potential grid
configurations for DC grids (symmetrical monopole, asymmetrical
monopole, bipolar schemes, with and without metallic return
and combined systems). The possible earthing options for a
meshed HVDC grid are part of this discussion. The extensibility
and reliability of the HVDC grid are specifically dealt with.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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