Benefit Evaluation of HVAC and HVDC for Offshore Wind Power Transmission
System Under the Multidimensional Index
Abstract
As offshore wind power development extends into deeper and
farther seas, several new AC/DC transmission schemes have been proposed.
Each of these schemes has its own technical advantages. However, with
the increasing complexity of transmission conditions, selecting the
optimal techno-economic transmission system for different scenarios has
become an urgent issue that needs to be addressed. Current
single-dimension evaluation methods for offshore wind power systems lack
comprehensive parameters and sufficient accuracy, making it difficult to
accurately select systems for complex operating conditions. To
address the above issues, this study first establishes a TLCC-BEP
offshore wind power cost indicator that integrates multiple parameters
such as water depth and taxes, combined with power generation benefits,
environmental, and carbon indicators, proposing a comprehensive benefit
evaluation system. Next, the characteristics of the main indicators in
the constructed evaluation system are presented based on the results of
model sensitivity analysis. Subsequently, using actual scenario GPS
data, the VIKOR method based on prospect theory is applied to
comprehensively evaluate four schemes—HVAC, FFTS, VSC, and CSC—under
multiple conditions, obtaining a more accurate applicability range for
each transmission scheme.
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