Development of Propulsion Motor and Controller for Submersible Vehicles

Abstract

The submersible vehicle propulsion motor and the controller, which are installed at the outside of pressure hull, are required to be of small size, light weight and good response. The variable speed, squirrel cage induction motor drived with the current-type inverter has been developed. The motor is filled with oil and pressure-compensated to allow for changes in oil volume with external water pressure. Rated speed of the motor is about 3000 rpm under a 11 kw propeller load. The current-type inverter is installed in the spherical pressure hull.