CN217969882U - Multi-path electrically propelled ship - Google Patents
Multi-path electrically propelled ship Download PDFInfo
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- CN217969882U CN217969882U CN202222329776.0U CN202222329776U CN217969882U CN 217969882 U CN217969882 U CN 217969882U CN 202222329776 U CN202222329776 U CN 202222329776U CN 217969882 U CN217969882 U CN 217969882U
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Abstract
The utility model discloses a multichannel electric propulsion's boats and ships, it includes: marine propulsion system and daily load propulsion system, marine propulsion system includes: at least two marine propulsion units; the ship propulsion unit comprises: the variable frequency motor is used for driving the ship to run; the input end of the propelling frequency converter is connected with the first battery pack, and the output end of the propelling frequency converter is connected with the variable frequency motor and used for driving the variable frequency motor to work; two adjacent ship propulsion units are connected through a first busbar switch; the commodity load propulsion system includes: at least two commodity load propulsion units; the daily load propulsion unit comprises: the input end of the daily inverter is connected with the second battery pack, and the output end of the daily inverter is connected with the daily load of the ship and used for supplying power to the daily load of the ship; two adjacent daily load propulsion units are connected through a second busbar switch; through the design, when the first battery pack breaks down, the daily load power supply of the ship is not affected; when the second battery pack is in failure, the operation of the ship is not affected.
Description
Technical Field
The utility model relates to a boats and ships technical field particularly, relates to a multichannel electric propulsion's boats and ships.
Background
With the continuous enhancement of environmental awareness in recent years, the market demand of domestic new energy ships is continuously increased by virtue of the advantages of zero emission and low noise of electric ships, and particularly the gradual maturity of power battery technology and the continuous reduction of cost enable the development of the electric ship industry to have basic conditions. However, in the prior art, a group of batteries simultaneously supplies power for the operation of the ship and the daily load of the ship, and when the batteries are in problem, the ship can not operate, and the daily load can not work normally.
Aiming at the problems that in the prior art, a group of batteries simultaneously supply power for the operation of a ship and the daily load of the ship, and when the batteries are in failure, the ship can not operate, and the daily load can not work normally, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an embodiment provides a multichannel electric propulsion's boats and ships to solve all be a set of battery among the prior art and supply power for the daily load of the operation of boats and ships and boats and ships simultaneously, when the battery goes wrong, boats and ships can not move, problem that each daily load also can not normally work.
In order to achieve the above object, the utility model provides a multichannel electrically-propelled boats and ships, it includes: marine propulsion systems and commodity load propulsion systems; the marine propulsion system includes: a marine propulsion unit; the number of the ship propulsion units is at least two; the marine propulsion unit includes: the variable frequency motor is arranged in an engine room of the ship and used for driving the ship to run; the propulsion frequency converter is arranged in a power distribution room of the ship, the input end of the propulsion frequency converter is connected with the first battery pack, and the output end of the propulsion frequency converter is connected with the variable frequency motor and used for driving the variable frequency motor to work; two adjacent ship propulsion units are connected through a first busbar switch; the daily load propulsion system comprises: a daily load propulsion unit; the daily load propulsion units are provided with at least two; the daily load propulsion unit comprises: the daily inverter is arranged in the distribution room of the ship, the input end of the daily inverter is connected with the second battery pack, and the output end of the daily inverter is connected with the daily load of the ship and used for supplying power to the daily load of the ship; two adjacent daily load propulsion units are connected through a second busbar switch; the propulsion frequency converter and the daily inverter are integrated on a direct current distribution board; the direct current distribution board is arranged in a distribution room of the ship.
Optionally, the marine propulsion unit further comprises: a first high pressure tank; the input end of the first high-voltage box is connected with the output end of the first battery pack; the daily load recommendation unit further comprises: a second high pressure tank; and the input end of the second high-voltage box is connected with the output end of the second battery pack.
Optionally, the marine propulsion unit further comprises: a first busbar; the input end of the first busbar is connected with the output end of the first high-voltage box, and the output end of the first busbar is connected with the input end of the propulsion frequency converter; two adjacent first busbars are connected through the first busbar switch; the first busbar and the first busbar switch are arranged on the direct current distribution board; the daily load propulsion unit further comprises: a second busbar; the input end of the second busbar is connected with the output end of the second high-voltage box, and the output end of the second busbar is connected with the input end of the daily inverter; two adjacent second busbars are connected through the second busbar switch; the second busbar and the second busbar switch are arranged on the direct current distribution board.
Optionally, the marine propulsion unit further comprises: a first input switch; the first input switch is arranged between the first busbar and the first high-voltage box; the daily load propulsion unit further comprises: a second input switch; the second input switch is arranged between the second busbar and the second high-voltage box.
Optionally, the marine propulsion unit further comprises: a first direct current fuse; the first direct current fuse is arranged between the first input switch and the first busbar; the first direct current fuse is arranged between the first busbar and the propulsion frequency converter; the daily load propulsion unit further comprises: a second direct current fuse; the second direct current fuse is arranged between the second input switch and the second busbar; and the second direct current fuse is arranged between the second busbar and the daily inverter.
Optionally, the method further includes: propelling the main controller; the propulsion main controller is arranged in a cab of the ship; the propulsion main controller is connected with the direct current distribution board and used for controlling the operation of the direct current distribution board.
Optionally, the method further includes: a machine side control box; the engine side control box is arranged in an engine room of the ship, is respectively connected with the propulsion frequency converter and the propulsion main controller, and is used for controlling the propulsion frequency converter to operate when the propulsion main controller fails.
Optionally, the daily load propulsion unit further comprises: an alternating current distribution board; the input end of the alternating current distribution board is connected with the daily inverter, and the output end of the alternating current distribution board is connected with the daily load of the ship and used for receiving the sine wave output by the daily inverter and transmitting the sine wave to the daily load of the ship.
Optionally, the first battery pack and the second battery pack are provided with input ends for connecting with a shore-based charging pile; the shore-based charging pile is used for charging the first battery pack and the second battery pack.
Optionally, the method further includes: the energy management system is connected with the battery management system and used for acquiring a first electric quantity value of the first battery pack in each ship propulsion unit, judging whether the first battery pack breaks down or not according to the first electric quantity value, and if so, closing the first busbar switch; and acquiring a second electric quantity value of the second battery pack in each daily load propulsion unit, judging whether the second battery pack breaks down or not according to the second electric quantity value, and if so, closing the second busbar switch.
The utility model has the advantages that:
the utility model provides a multichannel electric propulsion's boats and ships, it includes: marine propulsion systems and commodity load propulsion systems; the marine propulsion system includes: a marine propulsion unit; the number of the ship propulsion units is at least two; the ship propulsion unit includes: the variable frequency motor is arranged in an engine room of the ship and used for driving the ship to run; the propulsion frequency converter is arranged in a power distribution room of the ship, the input end of the propulsion frequency converter is connected with the first battery pack, and the output end of the propulsion frequency converter is connected with the variable frequency motor and used for driving the variable frequency motor to work; two adjacent ship propulsion units are connected through a first busbar switch; the commodity load propulsion system includes: a daily load propulsion unit; the daily load propulsion units are provided with at least two; the daily load propulsion unit comprises: the daily inverter is arranged in the distribution room of the ship, the input end of the daily inverter is connected with the second battery pack, and the output end of the daily inverter is connected with the daily load of the ship and used for supplying power to the daily load of the ship; two adjacent daily load propulsion units are connected through a second busbar switch; through the design, when the first battery pack breaks down, the daily load power supply of the ship is not influenced; when the second battery pack breaks down, the operation of the ship is not affected. The problem of all be a set of battery simultaneously for the operation of boats and ships and the daily load power supply of boats and ships among the prior art, when the battery goes wrong, boats and ships can not move, and each daily load also can not normally work is solved. Furthermore, the propulsion frequency converter and the daily inverter are integrated on a direct current distribution board; the direct current distribution board is arranged in the distribution room of the ship, and by means of the design, the capacity and the weight of the cabin are saved, and the cabin layout is simplified.
Drawings
Fig. 1 is a circuit diagram of a multi-path electrically propelled ship according to an embodiment of the present invention.
Description of the symbols:
the device comprises a variable frequency motor-1, a propulsion frequency converter-2, a first battery pack-3, a first busbar switch-4, a daily inverter-5, a second battery pack-6, a second busbar switch-7, a direct current distribution board-8, a first high-voltage box-9, a second high-voltage box-10, a first busbar-11, a second busbar-12, a first input switch-13, a second input switch-14, a first direct current fuse-15, a second direct current fuse-16, a first DC/DC converter-17, a second DC/DC converter-18 and an alternating current distribution board-19.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
With the continuous enhancement of environmental protection consciousness in recent years, the market demand of domestic new energy ships is continuously increased by virtue of the advantages of zero emission and low noise of the electric ships, and especially the gradual maturity of the power battery technology and the continuous reduction of the cost enable the development of the electric ship industry to have basic conditions. However, in the prior art, a group of batteries simultaneously supplies power for the operation of the ship and the daily load of the ship, and when the batteries are in problem, the ship can not operate, and the daily load can not work normally.
Therefore, the utility model provides a multi-path electric propulsion ship, which divides the operation of the ship and the daily load of the ship into two independent parts, supplies power for the operation of the ship through the first battery pack 3, and supplies power for the daily load of the ship through the second battery pack 6; fig. 1 is a circuit diagram of a multi-path electrically-propelled ship according to an embodiment of the present invention, as shown in fig. 1, the multi-path electrically-propelled ship includes: marine propulsion systems and commodity load propulsion systems;
the marine propulsion system includes: a marine propulsion unit; the ship propulsion units are provided with at least two (in the utility model, the ship propulsion units are provided with two, namely a first ship propulsion unit and a second ship propulsion unit); the marine propulsion unit includes:
the variable frequency motor 1 is arranged in an engine room of the ship and used for driving the ship to run;
specifically, the variable frequency motor 1 drives a propeller of the ship to operate.
The propulsion frequency converter 2 is arranged in a distribution room of the ship, the input end of the propulsion frequency converter is connected with the first battery pack 3, and the output end of the propulsion frequency converter is connected with the variable frequency motor 1 and used for driving the variable frequency motor 1 to work;
specifically, the first battery pack 3 is disposed in the No. 1 battery compartment.
Two adjacent ship propulsion units are connected through a first busbar switch 4;
the marine propulsion unit further comprises: a first high-pressure tank 9; the input end of the first high-voltage box 9 is connected with the output end of the first battery pack 3;
further, the boat propulsion unit further includes: a first busbar 11; the input end of the first busbar 11 is connected with the output end of the first high-voltage box 9, and the output end of the first busbar 11 is connected with the input end of the propulsion frequency converter 2; two adjacent first busbars 11 are connected through the first busbar switch 4; the first busbar 11 and the first busbar switch 4 are arranged on the direct current distribution board 8;
further, the boat propulsion unit further includes: a first input switch 13; the first input switch 13 is arranged between the first busbar 11 and the first high-voltage box 9;
still further, the boat propulsion unit further includes: a first direct current fuse 15; the first dc fuse 15 is disposed between the first input switch 13 and the first busbar 11; the first direct current fuse 15 is arranged between the first busbar 11 and the propulsion converter 2;
the current selective protection can be realized when the direct current power grid is in short circuit by arranging the first direct current fuse 15, and the continuity of ship power supply is ensured when the short circuit occurs.
In the present invention, a first DC/DC converter 17 is provided between the first input switch 13 and the first high-voltage tank 9; the first DC/DC converter 17 functions to stabilize the output voltage regardless of the battery voltage at the input terminal. Thus, even if the first busbar switch 4 is touched by mistake to close the first busbar switch, at this time, the discharging currents of the first battery packs 3 in the two ship propulsion units sequentially pass through the first high-voltage box 9 and the first DC/DC converter 17, the currents are equal, the two circuits (namely, the circuit formed by connecting the first battery packs 3, the first high-voltage box 9 and the first DC/DC converter 17 in series in the first ship propulsion unit, and the circuit formed by connecting the first battery packs 3, the first high-voltage box 9 and the first DC/DC converter 17 in series in the second ship propulsion unit) are equivalent to parallel connection, and the currents cannot flow backwards.
The circuit diagram of the present invention is described below by a specific embodiment:
line 1: the output of the first battery pack 3 in the first marine propulsion unit is connected with the input of the first high pressure tank 9 in the first marine propulsion unit; the output end of a first high-voltage box 9 in the first ship propulsion unit is connected with the input end of a first busbar 11 in the first ship propulsion unit through a first DC/DC converter 17, a first input switch 13 and a first DC fuse 15 in sequence; the output end of a first busbar 11 in the first ship propulsion unit is connected with the input end of a propulsion frequency converter 2 in the first ship propulsion unit through a first direct-current fuse 15 and a first output switch in sequence; the output end of a propulsion frequency converter 2 in the first ship propulsion unit is connected with the input end of a variable frequency motor 1 in the first ship propulsion unit; the variable frequency motor 1 in the first ship propulsion unit is used for driving a ship to run;
line 2: the output of the first battery pack 3 in the second marine propulsion unit is connected with the input of the first high pressure tank 9 in the second marine propulsion unit; the output end of a first high-voltage box 9 in the second ship propulsion unit is connected with the input end of a first busbar 11 in the second ship propulsion unit sequentially through a first DC/DC converter 17, a first input switch 13 and a first DC fuse 15; the output end of a first busbar 11 in the second ship propulsion unit is connected with the input end of a propulsion frequency converter 2 in the second ship propulsion unit through a first direct current fuse 15 and a first output switch in sequence; the output end of a propulsion frequency converter 2 in the second ship propulsion unit is connected with the input end of a variable frequency motor 1 in the second ship propulsion unit; the variable frequency motor 1 in the second ship propulsion unit is used for driving the ship to run;
a first busbar 11 in the first marine propulsion unit is connected with a first busbar 11 in the second marine propulsion unit through a first busbar switch 4.
Under normal conditions, inverter motors 1 in two boats and ships propulsion units operate by sections, and when first group battery 3 in first boats and ships propulsion unit broke down, arrange switch 4 closure with first mother this moment, two way inverter motors 1 operation are driven to first group battery 3 in the second boats and ships propulsion unit.
The daily load propulsion system comprises: a daily load propulsion unit; the daily load propulsion units are provided with at least two (in the utility model, the daily load propulsion units are provided with two, namely a first daily load propulsion unit and a second daily load propulsion unit); the daily load propulsion unit comprises:
the daily inverter 5 is arranged in the distribution room of the ship, the input end of the daily inverter is connected with the second battery pack 6, and the output end of the daily inverter is connected with a daily load of the ship and is used for supplying power to the daily load (such as an air conditioner, a water pump and the like) of the ship;
specifically, the second battery pack 6 is disposed in the No. 2 battery compartment.
The input end of the daily inverter 5 is connected with the second battery pack 6, and is used for converting the direct-current power supply output by the second battery pack 6 into a sine wave. The daily load propulsion unit further comprises: an alternating current distribution board 19; the input end of the alternating current distribution board 19 is connected with the output end of the daily inverter 5, and the output end of the alternating current distribution board 19 is connected with the daily load of the ship and used for receiving the sine wave output by the daily inverter 5 and transmitting the sine wave to the daily load of the ship, so that the power is supplied to the daily load of the ship.
Further, a transformer is arranged between the output end of the daily inverter 5 and the input end of the alternating current distribution board 19, because the output end of the alternating current distribution board 19 is connected with the daily load of the ship, the current ratio is large at the moment of starting the load and can exceed four to seven times of the rated current of the load, the daily inverter 5 is mainly composed of a plurality of transistors, the impact resistance is not good enough, if the daily load is directly connected with the daily inverter 5, the current can be fed back to the daily inverter 5 at the moment of starting the daily load, so that the daily inverter 5 is damaged, and therefore, a transformer needs to be arranged between the output ends of the daily inverter 5 and the alternating current distribution board 19 to prevent the current from being fed back to the daily inverter 5.
Two adjacent daily load propulsion units are connected through a second busbar switch 7;
the daily load recommendation unit further includes: a second high-pressure tank 10; the input of the second high-voltage box 10 is connected to the output of the second battery pack 6.
The daily load propulsion unit further comprises: a second busbar 12; the input end of the second busbar 12 is connected with the output end of the second high-voltage box 10, and the output end of the second busbar 12 is connected with the input end of the daily inverter 5; two adjacent second busbars 12 are connected through the second busbar switch 7; the second busbar 12 and the second busbar switch 7 are arranged on the direct current distribution board 8.
Further, the daily load propulsion unit further comprises: a second input switch 14; the second input switch 14 is disposed between the second busbar 12 and the second high-voltage box 10.
Further, the daily load propulsion unit further includes: a second direct current fuse 16; the second dc fuse 16 is disposed between the second input switch 14 and the second busbar 12; and the second dc fuse 16 is provided between the second busbar 12 and the daytime inverter 5.
The second direct current fuse 16 can realize current selective protection during short circuit of a direct current power grid, and continuous power supply of the ship is ensured when the short circuit occurs.
In the present invention, a second DC/DC converter 18 is provided between the second input switch 14 and the second high-voltage tank 10; the second DC/DC converter 18 functions to stabilize the output voltage regardless of the battery voltage at the input terminal. In this way, even if the second bus bar switch 7 is erroneously touched to be closed, the discharge current of the second battery pack 6 in the two daily load propulsion units is equal to the discharge current after sequentially passing through the second high-voltage box 10 and the second DC/DC converter 18, and the two circuits (i.e., the circuit in which the second battery pack 6, the second high-voltage box 10, and the second DC/DC converter 18 are connected in series in the first daily load propulsion unit, and the circuit in which the second battery pack 6, the second high-voltage box 10, and the second DC/DC converter 18 are connected in series in the second daily load propulsion unit) are connected in parallel, and the current does not flow backward.
The circuit diagram of the present invention is described below by a specific embodiment:
line 3: the output terminal of the second battery pack 6 in the first solar load propulsion unit is connected to the input terminal of the second high-pressure tank 10 in the first solar load propulsion unit; the output end of a second high-voltage box 10 in the first solar load propulsion unit is connected with the input end of a second busbar 12 in the first solar load propulsion unit through a second DC/DC converter 18, a second input switch 14 and a second DC fuse 16 in sequence; the output end of a second busbar 12 in the first daily load propulsion unit is connected with the input end of a daily inverter 5 in the first daily load propulsion unit through a second direct current fuse 16 and a second output switch in sequence; the output terminal of the daily inverter 5 in the first daily load propulsion unit is connected to the input terminal of the ac distribution board 19; the output of the ac distribution board 19 is connected to the daily loads of the ship for supplying power to a plurality of daily loads of said ship.
And a line 4: the output end of the second battery pack 6 in the second daily load propulsion unit is connected with the input end of the second high-voltage tank 10 in the second daily load propulsion unit; the output end of a second high-voltage box 10 in the second daily load propulsion unit is connected with the input end of a second busbar 12 in the second daily load propulsion unit through a second DC/DC converter 18, a second input switch 14 and a second direct current fuse 16 in sequence; the output end of a second busbar 12 in the second daily load propulsion unit is connected with the input end of a daily inverter 5 in the second daily load propulsion unit through a second direct current fuse 16 and a second output switch in sequence; the output of the domestic inverter 5 in the second domestic load propulsion unit is connected to the input of the ac distribution board 19; the output of the ac distribution board 19 is connected to the daily loads of the ship for supplying power to a plurality of daily loads of said ship.
The second bus bar 12 in the first daily load propulsion unit is connected with the second bus bar 12 in the second daily load propulsion unit through a second bus bar switch 7.
Under normal conditions, the daily inverter 5 only needs to run all the way, when the second battery pack 6 in the first daily load propulsion unit breaks down, the second battery pack 6 in the second daily load propulsion unit is started at the moment to drive the daily inverter 5 on the circuit to run, and then the daily load of the ship is supplied with power. Certainly, the second busbar switch 7 can also be closed, and the second battery pack 6 in the second daily load propulsion unit drives the two daily inverters 5 to operate, so as to supply power to the daily load of the ship.
The propulsion frequency converter 2 and the daily inverter 5 are integrated on a direct current distribution board 8; the dc distribution board 8 is provided in a distribution room of the ship.
In an alternative embodiment, the multi-way electrically-propelled vessel further comprises: propelling the main controller; the propulsion main controller is arranged in a cab of the ship; the propulsion master controller is connected with the dc distribution board 8, and is used for controlling the operation of the dc distribution board 8.
In an alternative embodiment, the multi-path electrically propelled vessel further comprises: a machine side control box; the machine side control box is arranged in an engine room of the ship, is respectively connected with the propulsion frequency converter 2 and the propulsion main controller, and is used for controlling the propulsion frequency converter 2 to operate when the propulsion main controller fails.
In an alternative embodiment, the first battery 3 and the second battery 6 are provided with inputs for connection to shore based charging poles; the shore-based charging pile is used for charging the first battery pack 3 and the second battery pack 6.
Specifically, the current of the shore-based charging pile is input into the first battery pack 3 through the charging socket on the ship and the first high-voltage box 9, so that the first battery pack 3 is charged, and the charging time of the first battery pack 3 is about 4 hours. Similarly, the current of the shore-based charging pile is input to the second battery pack 6 through the charging socket on the ship and through the second high-voltage box 10, thereby charging the second battery pack 6, and the charging time of the second battery pack 6 is about 4 hours.
In an alternative embodiment, the multi-path electrically propelled vessel further comprises: a battery management system and an energy management system;
the battery management system is arranged in the first high-voltage box 9 and the second high-voltage box 10 and is respectively used for detecting the electric quantity of the first battery pack 3 and the second battery pack 6 in real time;
the energy management system is connected with the battery management system and used for acquiring a first electric quantity value of the first battery pack 3 in each ship propulsion unit, judging whether the first battery pack 3 breaks down or not according to the first electric quantity value, if so, cutting off the first input switch 13 and closing the first busbar switch 4; and acquiring a second electric quantity value of the second battery pack 6 in each daily load propulsion unit, judging whether the second battery pack 6 fails or not according to the second electric quantity value, if so, cutting off the second input switch 14, and closing the second busbar switch 7.
In the utility model, the variable frequency motor 1 is arranged in the engine room of the ship and used for driving the ship to run; the propulsion frequency converter 2 and the daily inverter 5 are integrated on a direct current distribution board 8, and the direct current distribution board 8 is arranged in a distribution room of the ship; the propulsion main controller is arranged in a cab of the ship; the machine-side control box is arranged in an engine room of the ship; the first battery pack 3 is arranged in a No. 1 battery cabin of the ship; second group battery 6 set up in No. 2 battery compartment of boats and ships through with each distributed arrangement of equipment, makes boats and ships occupation space reduce by a wide margin, make full use of the cabin space of boats and ships, the shipment is gone into cabin nimble safety, and later maintenance is simple and convenient.
The utility model has the advantages that:
the utility model provides a multichannel electric propulsion's boats and ships, it includes: marine propulsion systems and commodity load propulsion systems; the marine propulsion system includes: a marine propulsion unit; the number of the ship propulsion units is at least two; the ship propulsion unit comprises: the variable frequency motor 1 is arranged in an engine room of the ship and used for driving the ship to run; the propulsion frequency converter 2 is arranged in a distribution room of the ship, the input end of the propulsion frequency converter is connected with the first battery pack 3, and the output end of the propulsion frequency converter is connected with the variable frequency motor 1 and used for driving the variable frequency motor 1 to work; two adjacent ship propulsion units are connected through a first busbar switch 4; a daily load propulsion system comprising: a daily load propulsion unit; the daily load propulsion units are provided with at least two; the daily load propulsion unit comprises: the daily inverter 5 is arranged in a power distribution room of the ship, the input end of the daily inverter is connected with the second battery pack 6, and the output end of the daily inverter is connected with a daily load of the ship and used for supplying power to the daily load of the ship; two adjacent daily load propulsion units are connected through a second busbar switch 7; by means of the design, when the first battery pack 3 breaks down, the daily load power supply of the ship is not affected; when the second battery pack 6 fails, the operation of the ship is not affected. The problem of all be a set of battery simultaneously for the operation of boats and ships and the daily load power supply of boats and ships among the prior art, when the battery goes wrong, boats and ships can not move, and each daily load also can not normally work is solved. Further, the propulsion frequency converter 2 and the daily inverter 5 are integrated on a direct current distribution board 8; the direct current distribution board 8 is arranged in the distribution room of the ship, and by means of the design, the capacity and the weight of the cabin are saved, and the cabin layout is simplified.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A multi-way electrically propelled watercraft, comprising: marine propulsion systems and commodity load propulsion systems;
the marine propulsion system includes: a marine propulsion unit; the number of the ship propulsion units is at least two; the marine propulsion unit includes: the variable frequency motor is arranged in an engine room of the ship and used for driving the ship to run; the propulsion frequency converter is arranged in a power distribution room of the ship, the input end of the propulsion frequency converter is connected with the first battery pack, and the output end of the propulsion frequency converter is connected with the variable frequency motor and used for driving the variable frequency motor to work; two adjacent ship propulsion units are connected through a first busbar switch;
the daily load propulsion system comprises: a daily load propulsion unit; the daily load propulsion units are provided with at least two; the daily load propulsion unit comprises: the daily inverter is arranged in the distribution room of the ship, the input end of the daily inverter is connected with the second battery pack, and the output end of the daily inverter is connected with the daily load of the ship and used for supplying power to the daily load of the ship; two adjacent daily load propulsion units are connected through a second busbar switch;
the propulsion frequency converter and the daily inverter are integrated on a direct current distribution board; the direct current distribution board is arranged in a distribution room of the ship.
2. The multi-path electrically-propelled marine vessel of claim 1, wherein:
the marine propulsion unit further comprises: a first high pressure tank; the input end of the first high-voltage box is connected with the output end of the first battery pack;
the daily load recommendation unit further comprises: a second high pressure tank; and the input end of the second high-voltage box is connected with the output end of the second battery pack.
3. The multi-path electrically-propelled marine vessel of claim 2, wherein:
the marine propulsion unit further comprises: a first busbar; the input end of the first busbar is connected with the output end of the first high-voltage box, and the output end of the first busbar is connected with the input end of the propulsion frequency converter; two adjacent first busbars are connected through the first busbar switch; the first busbar and the first busbar switch are arranged on the direct current distribution board;
the daily load propulsion unit further comprises: a second busbar; the input end of the second busbar is connected with the output end of the second high-voltage box, and the output end of the second busbar is connected with the input end of the daily inverter; two adjacent second busbars are connected through the second busbar switch; the second busbar and the second busbar switch are arranged on the direct current distribution board.
4. The multi-path electrically-propelled marine vessel of claim 3, wherein:
the marine propulsion unit further comprises: a first input switch; the first input switch is arranged between the first busbar and the first high-voltage box;
the daily load propulsion unit further comprises: a second input switch; the second input switch is arranged between the second busbar and the second high-voltage box.
5. The multi-way electrically-propelled marine vessel of claim 4, wherein:
the marine propulsion unit further comprises: a first direct current fuse; the first direct current fuse is arranged between the first input switch and the first busbar; the first direct current fuse is arranged between the first busbar and the propulsion frequency converter;
the daily load propulsion unit further comprises: a second direct current fuse; the second direct current fuse is arranged between the second input switch and the second busbar; and the second direct current fuse is arranged between the second busbar and the daily inverter.
6. The multi-path electrically-propelled marine vessel of claim 1, further comprising: propelling the main controller;
the propulsion main controller is arranged in a cab of the ship; the propulsion main controller is connected with the direct current distribution board and used for controlling the operation of the direct current distribution board.
7. The multi-path electrically-propelled marine vessel of claim 6, further comprising: a machine side control box;
the engine side control box is arranged in an engine room of the ship, is respectively connected with the propulsion frequency converter and the propulsion main controller, and is used for controlling the propulsion frequency converter to operate when the propulsion main controller fails.
8. The multi-path electrically-propelled marine vessel of claim 4, wherein said domestic load propulsion unit further comprises: an alternating current distribution board;
the input end of the alternating current distribution board is connected with the daily inverter, and the output end of the alternating current distribution board is connected with the daily load of the ship and used for receiving the sine wave output by the daily inverter and transmitting the sine wave to the daily load of the ship.
9. The multi-way electrically-propelled watercraft of claim 1, wherein: the first battery pack and the second battery pack are provided with input ends used for being connected with a shore-based charging pile; the shore-based charging pile is used for charging the first battery pack and the second battery pack.
10. The multi-path electrically-propelled marine vessel of claim 5, further comprising: a battery management system and an energy management system;
the battery management system is arranged in the first high-voltage box and the second high-voltage box and is respectively used for detecting the electric quantity of the first battery pack and the second battery pack in real time;
the energy management system is connected with the battery management system and used for acquiring a first electric quantity value of the first battery pack in each ship propulsion unit, judging whether the first battery pack breaks down or not according to the first electric quantity value, and if so, closing the first busbar switch; and acquiring a second electric quantity value of the second battery pack in each daily load propulsion unit, judging whether the second battery pack breaks down or not according to the second electric quantity value, and if so, closing the second busbar switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222329776.0U CN217969882U (en) | 2022-09-02 | 2022-09-02 | Multi-path electrically propelled ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222329776.0U CN217969882U (en) | 2022-09-02 | 2022-09-02 | Multi-path electrically propelled ship |
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| CN217969882U true CN217969882U (en) | 2022-12-06 |
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| CN202222329776.0U Active CN217969882U (en) | 2022-09-02 | 2022-09-02 | Multi-path electrically propelled ship |
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