This paper suggests a new control method to modify the virtual impedance performance in unbalanced conditions. The proposed method compensates the voltage drop that occurred due to the virtual impedance and adjusts the voltage of the point of common coupling at a desirable level. To compensate the voltage drop, the reference voltage in the droop control varies according to the proposed algorith...

nowadays, combination of gps heights with orthometric heights, derived from precise leveling, is broadly used to obtain point-wise solutions of the geoid, which is called “gps/leveling geoid”. the “gps/leveling geoid” is commonly used to constrain the gravimetric geoid solutions in a least squares surface fitting process. in this paper, unlike the usual application, the “gps/leveling geoid” is ...

With more goods to be transported oversea, traffic and vessels’ dimensions increase while berthing areas merely remain constant thus challenge ship masters pilots maneuver in small basins with dense even bad weather situations. Too fast approaches or steep angles of attack result damages fenders, quay walls, impact the hull structure. We propose a shore-based, vessel-independent assistant syste...