| Abstract |
One of the EU energy policy goals is development
of utilization of renewable and small local power
sources. Local balancing of power production and consumption
is aimed due to power transmission loses minimization.
In other words all energy consumed in separated
small area (cottage, town and commune) should be produced
within this area. Research it has been done so far
shows that it is very hard, in particular using unstable renewable
power based on solar and wind energy, to reach
the aim with keeping very high quality factors, high efficiency
and low costs. Renewables like solar and sun energy
have many disadvantages. To avoid these disadvantages
sources are connected together into hybrid systems. The
hybrid systems can be realized as AC or DC current. An
idea of DC current solution is presented in the paper. In
authors opinion such system using power electronics converters
and advanced control systems allows easier effective
connection of different power sources as AC current. In
particular there are no problems like reactive power control,
voltage and current distortion, reactive loses etc. |
