RU2537929C2 - Electric power system for perspective non-nuclear submarines - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: invention is related to naval electronic equipment to be used at perspective non-nuclear submarines. The electric power system comprises an accumulator battery, two diesel generating sets, distribution boards, control switchboard with switching and protecting equipment, and electric propulsion system. The accumulator battery is made as lithium ion battery, and its each group is divided into semi-groups. The semi-groups are connected to the power system through doubled automatic circuit breakers. The distribution boards are connected to semi-groups of the lithium ion battery through diode isolation. The electric propulsion system is made as all-mode electric propulsion system consisting of a propulsion motor and its power supply system, bypass power diodes are also installed in it and the system is connected to the power line by these diodes.

EFFECT: increasing sea endurance of a submarine and providing reliable power supply of essential systems.

1 dwg

Description

The invention relates to marine electrical engineering.

Designed for use on promising non-nuclear submarines. It can also be used in underwater vehicles and surface ships with electric propulsion.

Analogs of electric power systems of diesel-electric submarines are known (S. N. Prosolov, M. B. Amitin “Submarine Design.” Military Publishing House, Moscow 1973, p. 262; “Submarine Design Issues. Electric Power Systems” ed. TsKB MT Rubin 2000, p. 34; V.S. Sokolov, B.V. Nikiforov et al. “Electrotechnical and radio-electronic systems of diesel-electric submarines” published by FSUE TsKB MT Rubin 2005 , p. 7), containing a battery consisting of two groups, two diesel generators, an electrode system navigation, consisting of the main rowing electric motor and electric motor of economic progress, control panels with switching and protective equipment, switchboards.

Known analogues have the main disadvantage - low energy consumption of the battery and, as a consequence, low secrecy of the underwater submarine course.

Also known is the electric power system of diesel-electric submarines, taken as a prototype (Dyadik AN, Nikiforov BV “Ship energy systems” St. Petersburg, 2010, p. 322), containing a battery consisting of two groups, two diesel generators, an electric propulsion system consisting of a main propeller motor and an electric motor of economic progress, control panels with switching and protective equipment, switchboards.

Known electric power system has several disadvantages due to the use of lead-acid batteries:

- relatively low energy consumption of the battery;

- relatively low resource indicators;

- high level of self-discharge of the battery;

- the need for frequent regular maintenance during operation;

- the need for a number of auxiliary systems.

The objective of the invention is to increase the underwater autonomy of non-nuclear submarines due to the use of lithium-ion battery (LIAB) and an all-mode electric propulsion system in the electric power system.

The task is achieved in that a lithium-ion secondary battery (LIAB) and an all-mode electric propulsion system are used in the electric power system. Each LIAB group is divided into semigroups connected to the power network via dual circuit breakers, switchboards are connected to LIAB semigroups through diode junctions. The connection of the all-mode electric propulsion system to the LIAB groups is carried out through reverse power diodes installed in the power supply system of the propeller motor.

The essence of the invention is illustrated in the drawing, where figure 1 shows a diagram of an electric power system.

The proposed electric power system for promising non-nuclear submarines contains two battery groups, 1 divided into semigroups 2, each of which is connected to the power network via dual circuit breakers 10, two switchboards 4 are connected to the battery semigroups 2 through diode junctions 9, two diesel -generator 3 and two switchboards 4 are connected to the power network through control panels with switching and protective equipment 5, an all-mode electric propulsion system (EDMS) 6 consists of a rowing electric motor 7 and its power supply system 8 and is connected to the power network through control panels with switching and protective equipment 5 using reverse power diodes 11 installed in the power supply system 8 of the rowing electric motor 7.

The work of the electric power system is as follows.

Each LIAB 1 group is divided into semigroups 2. The protection of each LIAB 2 semigroup from short circuit currents is ensured by its connection via dual circuit breakers 10. This connection and protection circuit of LIAB allows, if necessary, to increase the number of battery cells, thereby increasing its total energy.

Power supply of consumers is provided from switchboards 4. For reliable power supply of important consumers in emergency situations, there are two switchboards 4 connected directly to the LIAB 2 semigroups through diode junctions 9, which ensures uniform discharge and maintaining the same voltage level at the LIAB 2 semigroups.

To ensure the course in all operating modes of the submarine, an all-mode electric propulsion system 6 was used, consisting of a rowing electric motor 7 and its power supply system 8. In the power supply system 8, the LIAB 1 groups of the right and left sides are connected in series. To maintain the non-stop operation of the all-mode electric propulsion system 6, when one of the LIAB 1 groups fails, power reverse diodes 11 are installed in the power supply system 8.

The proposed electric power system provides a significant increase in submarine autonomy of the submarine and reliable power supply for responsible consumers.

Claims (1)

An electric power system for promising non-nuclear submarines containing a battery consisting of two groups, each of which is connected to the power network through a circuit breaker, two diesel generators, distribution boards, control panels with switching and protective equipment, an electric propulsion system, characterized in that the battery is made in the form of a lithium-ion battery, each group of which is divided into semigroups connected to the power network via dual automatic switches, switchboards are connected to the semigroups of the lithium-ion battery through diode isolation, the electric movement system is made in the form of an all-mode electric movement system consisting of a propeller motor and its power supply system, in which reverse power diodes are installed, with which it is connected to the power network .