Integration of distributed generators into a real powerless distribution system

This paper considers the problem of integrating distributed generators into the Bosnia and Herzegovina´s (B&H) distribution system. B&H has a respectable hydro potential accommodation for small hydro power plants (HPP). Today, an imposing number of small hydro power plants (27 units/ 36.5 MW) is connected to the B&H distribution grid and tenths are in the phase of construction (total power cca 300 MW). After receiving positive results from multi-year measurements of wind potential in some regions of B&H, it has become evident that B&H fulfills conditions for the development of wind power plants (WPP). There are some initiatives for constructing WPP on several locations in B&H with generator units between 300 kW and 2 MW. Their integration into the B&H powerless distribution grid presents an important technical problem. This paper is aimed to present some problems which have occured in the B&H distribution system with a large penetration of distribution generation.