To provide an electric propulsion device of a vessel enabling setting of a plurality of operation systems according to characteristics of each vessel and selection of an optimum operation system each time.
This device is provided with a speed setting operation means for commanding speed of the vessel, a speed command adjusting means for forming a speed command signal timewisely changing by inclination set corresponding to each control mode of acceleration control and deceleration control based on a speed set value set by the speed setting operation means, a speed command change rate setting means for acceleration and speed command change rate setting means for deceleration for setting inclination in which the speed command signal generated by the speed command adjusting means changes in each control mode of the acceleration control and the deceleraiton control, a speed adjusting control means for adjusting and controlling speed of an AC motor by controlling a power converting device based on the speed command value by the speed command signal of the speed command adjusting means and the speed detection value of the AC motor, and an operation mode switching means for selectively switching a mode for continuing a regenerative operation of the power converting device at prescribed speed or below and a mode for interrupting the operation at the time of the deceleration control.
KOSHIBA MASAHIDE
AIKAWA YOICHI
| JPH07315293A | 1995-12-05 | |||
| JP2003519592A | 2003-06-24 | |||
| JP2004032954A | 2004-01-29 |
Yoshihide Komada
Kiyoshi Matsuzaki