Abstract:
In this article, a fault location technique for
medium voltage direct current (MVDC) shipboard power
systems is presented. Accurate prediction of the fault
location helps in restoration of the power in MVDC
shipboard power systems. A portable device using probe
power circuit (PPC) is used to estimate the location of the
fault. The same circuit can be used to locate the fault in
different zones of the MVDC shipboard power systems. The
location of the fault is estimated using a non-iterative
technique based on damping frequency and attenuation of
the probe current. The proposed method using PPC is tested
for fault close to PPC and different fault resistances. Test
results indicate that the proposed method is simple, reliable,
effective and accurate in locating the fault in MVDC
shipboard power systems.
