New energy ship electric propulsion system

Abstract

The utility model relates to the technical field of ships, and particularly discloses a new energy ship electric propulsion system which comprises a first power supply circuit for supplying power to a first main propulsion motor and a second power supply circuit for supplying power to a second main propulsion motor. The first power supply line comprises a first high-voltage direct-current subsystem electrically connected with the first main propulsion motor and used for adjusting voltage, a first charging socket electrically connected with the first high-voltage direct-current subsystem, and a first circuit control subsystem electrically connected with the first high-voltage direct-current subsystem. The second power supply line comprises a second high-voltage direct-current subsystem electrically connected with the second main propulsion motor and used for adjusting voltage, a second charging socket box electrically connected with the second high-voltage direct-current subsystem and a second circuit control subsystem electrically connected with the second high-voltage direct-current subsystem. The problem that the two propulsion motors lose power at the same time when the power supply circuit breaks down due to the fact that the electric propulsion system of a traditional new energy ship adopts one power supply circuit to supply power to the two propulsion motors at the same time is solved.

Description

TECHNICAL FIELD

[0001] The application relates to the ship technology field and discloses a new energy ship electric propulsion system. BACKGROUND

[0002] For a traditional new energy ship with double tails, double rudders, double propellers and double motor drives, the electric propulsion system installed on the ship body usually only includes one driving source, drives the two motors to work through one power supply line, and is connected with only one control system, which synchronously controls the on-off of the power supply line to synchronously drive the two propulsion motors to work.

[0003] Although the unified power supply through one power supply line is convenient for maintenance and maintenance, when the power supply line fails, the two propulsion motors will lose power at the same time.

[0004] Therefore, the inventor provides a new energy ship electric propulsion system to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem that the traditional new energy ship electric propulsion system adopts one power supply line to supply power to two propulsion motors, and when the power supply line fails, the two propulsion motors will lose power at the same time.

[0006] In order to achieve the above purpose, the basic scheme of the utility model provides a new energy ship electric propulsion system, which comprises a power supply line one for supplying power to a main propulsion motor one and a power supply line two for supplying power to a main propulsion motor two, the power supply line one comprises a high-voltage direct-current subsystem one electrically connected with the main propulsion motor one and used for adjusting voltage, a charging socket one electrically connected with the high-voltage direct-current subsystem one and a circuit control subsystem one electrically connected with the high-voltage direct-current subsystem one.

[0007] The power supply line two comprises a high-voltage direct-current subsystem two electrically connected with the main propulsion motor two and used for adjusting voltage, a charging socket box two electrically connected with the high-voltage direct-current subsystem two and a circuit control subsystem two electrically connected with the high-voltage direct-current subsystem two.

[0008] Further, the high-voltage direct-current subsystem one comprises a high-voltage box one electrically connected with the charging socket one and the circuit control subsystem one, a lithium battery pack one electrically connected with the high-voltage box one and used for power supply, and a propulsion frequency converter one electrically connected between the high-voltage box one and the main propulsion motor one.

[0009] Further, the circuit control subsystem one comprises a domain management box one electrically connected with the high-voltage box one and externally connected with a control circuit one, and a lithium battery pack one emergency stop control circuit electrically connected with the domain management box one.

[0010] Further, the high-voltage direct-current subsystem two comprises a high-voltage box two electrically connected with the charging socket box two and the circuit control subsystem two, a lithium battery pack two for power supply and electrically connected with the high-voltage box two, and a propulsion frequency converter two electrically connected between the high-voltage box two and the main propulsion motor two.

[0011] Further, the circuit control subsystem two comprises a domain management box two electrically connected with the high-voltage box two and externally connected with a control circuit two, and a lithium battery pack two emergency stop control circuit electrically connected with the domain management box two.

[0012] The principle and effect of the scheme are that:

[0013] Compared with the prior art, the utility model discloses a power supply circuit one and power supply circuit two are independently powered for main propulsion motor one and main propulsion motor two respectively, and the circuit control subsystem one in power supply circuit one and the circuit control subsystem two in power supply circuit two are used to control the circuit on-off of high-voltage direct-current subsystem one and high-voltage direct-current subsystem two, so as to realize the independent power supply for main propulsion motor one and main propulsion motor two and the independent control of the power supply circuit, and the problem that the traditional new energy ship electric propulsion system uses one power supply circuit to simultaneously supply power for two propulsion motors, and when the power supply circuit fails, two propulsion motors lose power at the same time is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 A schematic diagram of a new energy ship electric propulsion system is shown. DETAILED DESCRIPTION

[0016] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects of the utility model will be described in detail below in combination with the drawings and preferred embodiments.

[0017] The reference signs in the drawings of the specification include: lithium battery pack one 1, high voltage box one 2, charging socket one 3, battery cabin temperature sensor one 4, propulsion inverter one 5, main propulsion motor one 6, domain management box one 7, first lithium battery pack one emergency stop button 8, second lithium battery pack one emergency stop button 9, inverter power supply one 10, lithium battery pack two 11, high voltage box two 12, charging socket two 13, battery cabin temperature sensor two 14, propulsion inverter two 15, main propulsion motor two 16, domain management box two 17, first lithium battery pack two emergency stop button 18, second lithium battery pack two emergency stop button 19, inverter power supply two 20.

[0018] A new energy ship electric propulsion system, for example Figure 1 is shown:

[0019] It includes a power supply circuit one for supplying power to the main propulsion motor one 6, and a power supply circuit two for supplying power to the main propulsion motor two 16.

[0020] Specifically,

[0021] The power supply circuit one includes a high voltage direct current subsystem one electrically connected with the main propulsion motor one 6 and used for adjusting voltage, a charging socket one 3 electrically connected with the high voltage direct current subsystem one, and a circuit control subsystem one electrically connected with the high voltage direct current subsystem one.

[0022] The high voltage direct current subsystem one includes a high voltage box one 2 electrically connected with the charging socket one 3 and the circuit control subsystem one, a lithium battery pack one 1 electrically connected with the high voltage box one 2 and used for power supply, and a propulsion frequency converter one electrically connected between the high voltage box one 2 and the main propulsion motor one 6. The high voltage box one 2 is further electrically connected with the inverter power supply one 10. The circuit control subsystem one includes a domain management box one 7 electrically connected with the high voltage box one 2 and externally connected with a control circuit one, and a lithium battery pack one emergency stop control circuit electrically connected with the domain management box one 7.

[0023] In the embodiment, the high voltage box one 2 is further electrically connected with two battery cabin temperature sensors one 4, and the terminals of the inverter power supply one 10 are respectively connected to a central control box of a main propulsion motor one 6 control system, a DC 24V power supply and an AC distribution board installed in the ship. The lithium battery pack one emergency stop control circuit includes a first lithium battery pack one emergency stop button 8 electrically connected with the domain management box one 7 and a second lithium battery pack one emergency stop button 9 connected in series with the first lithium battery pack one emergency stop button 8, and the emergency shutdown of the lithium battery pack one 1 is realized through the first lithium battery pack one emergency stop button 8 and the second lithium battery pack one emergency stop button 9. In the embodiment, the first lithium battery pack one emergency stop button 8 and the second lithium battery pack one emergency stop button 9 are respectively carried on different positions of the ship.

[0024] In the embodiment, the terminals of the domain management box 7 are connected to the charging and discharging board, the central control box of the main propulsion motor 6 control system, and the lithium battery start-stop control panel of the main propulsion motor 6 control system, respectively. The propulsion power start-stop control, daily power start-stop control, and emergency stop of the main propulsion motor 6 are realized by connecting the lithium battery start-stop control panel of the main propulsion motor 6 control system, and the emergency stop alarm is sent out.

[0025] The power supply circuit two and the power supply circuit one are the same in composition and connection mode, including the high-voltage direct-current subsystem two electrically connected to the main propulsion motor 16 and used for adjusting voltage, the charging socket box two electrically connected to the high-voltage direct-current subsystem two, and the circuit control subsystem two electrically connected to the high-voltage direct-current subsystem two.

[0026] The high-voltage direct-current subsystem two includes the high-voltage box 12 electrically connected to the charging socket box two and the circuit control subsystem two, the lithium battery pack 11 electrically connected to the high-voltage box 12 and used for power supply, and the propulsion frequency converter two electrically connected between the high-voltage box 12 and the main propulsion motor 16. The high-voltage box 12 is further electrically connected to the inverter power supply 20. The circuit control subsystem two includes the domain management box 17 electrically connected to the high-voltage box 12 and externally connected to the control circuit two, and the lithium battery pack 11 emergency stop control circuit electrically connected to the domain management box 17.

[0027] In the embodiment, the high-voltage box 12 is further electrically connected to two battery cabin temperature sensors 14, and the terminals of the inverter power supply 20 are connected to the central control box of the main propulsion motor 16 control system installed in the ship, the DC 24V power supply, and the AC distribution board, respectively. The lithium battery pack 11 emergency stop control circuit includes the first lithium battery pack 11 emergency stop button 18 electrically connected to the domain management box 17 and the second lithium battery pack 11 emergency stop button 19 connected in series with the first lithium battery pack 11 emergency stop button 18, and the emergency shutdown of the lithium battery pack 11 is realized by the first lithium battery pack 11 emergency stop button 18 and the second lithium battery pack 11 emergency stop button 19. In the embodiment, the first lithium battery pack 11 emergency stop button 18 and the second lithium battery pack 11 emergency stop button 19 are respectively carried on different positions of the ship.

[0028] In the embodiment, the terminals of the domain management box 17 are connected to the charging and discharging board, the central control box of the main propulsion motor 16 control system, and the lithium battery start-stop control panel of the main propulsion motor 16 control system, respectively. The propulsion power start-stop control, daily power start-stop control, and emergency stop of the main propulsion motor 16 are realized by connecting the lithium battery start-stop control panel of the main propulsion motor 16 control system, and the emergency stop alarm is sent out.

[0029] The utility model discloses a power supply circuit, comprising power supply circuit one, power supply circuit two, high voltage direct current subsystem one, high voltage direct current subsystem two, main propulsion motor one 6, main propulsion motor two 16, circuit control subsystem one and circuit control subsystem two.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above with the preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make some changes or modifications to the equivalent embodiments with the disclosed technical content without departing from the technical solution of the utility model. Any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, which does not depart from the technical solution of the utility model, still belongs to the scope of the technical solution of the utility model.

Claims

1. A new energy vessel electric propulsion system, characterized in that, The power supply circuit one for supplying power for the main propulsion motor one, the power supply circuit two for supplying power for the main propulsion motor two, the power supply circuit one comprises a high-voltage direct-current subsystem one electrically connected with the main propulsion motor one and used for adjusting voltage, a charging socket one electrically connected with the high-voltage direct-current subsystem one and a circuit control subsystem one electrically connected with the high-voltage direct-current subsystem one; The power supply circuit two comprises a high-voltage direct-current subsystem two electrically connected with the main propulsion motor two and used for adjusting voltage, a charging socket box two electrically connected with the high-voltage direct-current subsystem two and a circuit control subsystem two electrically connected with the high-voltage direct-current subsystem two.

2. A new energy ship electric propulsion system according to claim 1, characterized in that, The high-voltage direct-current subsystem one comprises a high-voltage box one electrically connected with the charging socket one and the circuit control subsystem one, a lithium battery pack one electrically connected with the high-voltage box one and used for power supply, and a propulsion frequency converter one electrically connected between the high-voltage box one and the main propulsion motor one.

3. A new energy ship electric propulsion system according to claim 2, characterized in that, The circuit control subsystem one comprises a domain management box one electrically connected with the high-voltage box one and externally connected with a control circuit one, and a lithium battery pack one emergency stop control circuit electrically connected with the domain management box one.

4. The new energy ship electric propulsion system according to claim 2, characterized in that, The high-voltage direct-current subsystem two comprises a high-voltage box two electrically connected with the charging socket box two and the circuit control subsystem two, a lithium battery pack two electrically connected with the high-voltage box two and used for power supply, and a propulsion frequency converter two electrically connected between the high-voltage box two and the main propulsion motor two.

5. A new energy ship electric propulsion system according to claim 4, characterized in that, The circuit control subsystem two comprises a domain management box two electrically connected with the high-voltage box two and externally connected with a control circuit two, and a lithium battery pack two emergency stop control circuit electrically connected with the domain management box two.

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