In this paper, a Luenberger observer-based microgrid control strategy is proposed to enhance the power quality of microgrids, when grid loads are mixed and strongly non-linear. To improve performance under condition, observer designed for three phase grids. On basis observer, components different frequencies sequences voltages currents obtained accurately. The virtual impedance designed, which ...

The article presents the results of analysis operational parameters piston engine CA 912 ULT which is a propulsion system ultralight gyroplane Tercel produced by Aviation Artur Trendak. Research was conducted under normal operating conditions autogyro and data collected from 15 independent tests including total 14 flight hours during training flights. Engine were recorded at 9 Hz each using on-...

the microgrid concept provides attractive solutions for reliability enhancement of power distribution systems. normally, microgrids contain renewable-energy-based distributed generation (dg) units, which their output power varies with different environmental conditions. in addition, load demand usually changes with factors such as hourly and seasonal customer activities. hence, these issues hav...