Combined DC chopped wave speed regulation submarine propulsion plant having super capacitor

Abstract

The invention discloses a combined DC-chop speed regulating device for electrically propelling submarine, comprising: a startup buffering circuit to limit discharging current of storage battery group as starting up; a boosting chop circuit to increase output voltage of four-quadrant DC chopper and rotating speed of propelling motor; a super capacitor group to provide the electric energy needed by limit navigational speed of tin fish and filter the voltage of bus line; two four-quadrant DC choppers to drive the DC propelling motor; a main circuit control unit to control the combined chopper group. The invention can effectively ensure discharging ability of the storage battery group and thus, on the heavy-current discharging condition, the storage battery group can effectively increase the limit navigational speed of the submarine.

Description

technical field [0001] It relates to a DC chopper speed regulating circuit of a submarine electric propulsion system, which adopts a combined DC chopper device with a supercapacitor bank as an energy storage and an intermediate filter element, and the device has a fuel cell voltage and current regulation conversion device . technical background [0002] At present, most of the traditional diesel-electric submarines use such as image 3 The DC battery pack and armature series-parallel switching speed regulation electric propulsion system shown in the figure, its speed regulation circuit includes: two sets of battery packs, double armatures, and corresponding switch switching circuits; when the electric propulsion system is in parallel connection of batteries, motor When the combined structure of double armatures is in series, the submarine is at the lowest speed; when the electric propulsion system is in the combined structure of battery packs in series and motor double armat...

AI Technical Summary

Problems solved by technology

[0004] In view of the problems existing in the above-mentioned prior art, the technical problem to be solved by the submarine combined DC chopper speed-regulating electric propulsion system scheme proposed by the present invention is to provide a kind of battery that can eliminate the severe drop in the discharge capacity of the lead-acid battery caused by the strong inrush current. The electric propulsion device that solves the interference problem of electromagnetic noise to the system; the technical solution that can further increase the underwater limit speed of the submarine when the battery voltage is constant, and at the same time ensure that the discharge capacity of the battery is not weakened; can effectively absorb the deceleration of the submarine Braking energy to improve the underwater maneuverability of the submarine; the device needs to solve the problem that the fuel cell system cannot directly drive the DC motor of the submarine due to the unstable voltage and the soft working characteristics of the battery; the device can retain the original DC motor , to reduce the cost of electric propulsion system transformation as much as possible

Images