Abstract:
The natural energy sources such as oil,
coal, natural gas are finite. Also the
environmental issues such as global warming
have become increasingly serious and require
attention. The applications of renewable energy
(RE) sources viz. Solar, wind, biomass and tidal
power as a major form of clean technology could
be the right solution to solve energy crisis ahead
with decreasing manufacturing cost. Power
electronic converters are used to convert power
from renewable sources to cater load demand and/
or grid. Instead of using different DC-DC
converters for connecting renewable sources and
storage system to the load, Multiport DC-DC
converter as single unit can be used to improve
efficiency and power density. Many such
converters have been proposed in recent times
each of which has different topology, reliability
and efficiency. The comparison of such different
topologies is carried on in this paper which can
assist proper selection of suitable topology for any
specific requirement. Also, the research extension
of the topologies is discussed quoting how the
voltage gain can be improved and development of
multiport DC-AC inverters.
