This paper shows the possibility of the two-directional energy transfer between energy sources using the example of ultracapacitors. The showed method allows bidirectional energy transfer between power systems which use different voltage levels. We used PSIM program to simulate the bidirectional energy transfer and study the operation of the applied model.
Active filters are known as the best tools for harmonic mitigation as well as reactive power compensation, load balancing, voltage regulation, and voltage flicker regulation on the power lines.
This paper presents some European initiatives developed within the Socrates Programme in order to support people with disabilities to use the new technologies. The disadvantages of the existing software designed for people with visual deficiencies together with some criteria that have to be considered in developing virtual learning applications for visually… (More)