Abstract |
Conventional structures of power inverter filters, required for grid coupling operation
and to fulfill EMI requirements, lead to a system which is difficult to control (due to its high system
order) and problematic to realize due to unknown mains impedance behavior. In case of the presented
structure, a dedicated band-stop filter was used to enhance the output characteristics. The matching
filter used here in conjunction with an optimal controller can overcome most of the known limitations.
In this paper it is shown that the optimal adaptation of the suggested structure leads to a simple,
insensitive, easy to use and very robust solution. |