  The development of power electronics-based medium voltage direct current
(MVDC) networks has revolutionized the marine industry by enabling all-electric
ships (AES). This technology facilitates the integration of heterogeneous
resources and improves efficiency. The independent shipboard power system (SPS)
is controlled by exchanging measurements and control signals over a
communication network. However, the reliance on communication channels raises
concerns about the potential exploitation of vulnerabilities leading to
cyber-attacks that could disrupt the system. In this paper, a notional 12 kV
MVDC SPS model with zonal electrical distribution system (ZEDS) architecture is
considered as an exemplary model. As the system stability is closely linked to
the transient performance, we investigate how to determine the operational
status of the system under potential data integrity attacks on the governor and
exciter of the power generation modules (PGMs). Further, the impact of these
attacks on the stability of rotor speed and the DC link voltage is derived and
discussed. The simulation of the system is carried out in MATLAB/Simulink
environment.
