282 results about "Electric ship" patented technology

A speed estimation system for watercraft comprising a propulsion unit configured to provide thrust via rotation of a propeller and having an electric motor, a power supply configured to supply electric power to the propulsion unit, and an electronic circuit configured to sense at least one propulsion system parameter from which the propeller torque can be at least implicitly determined, and at least one propulsion system parameter sensed from which the propeller speed can be at least implicitly determined, the electronic circuit configured to determine the watercraft speed based on the sensed parameters.

The invention provides a solar water surface remote control contamination removing ship capable of automatically removing water surface garbage, wherein the ship at least comprises an electric ship and a garbage gathering device, a solar electric power source and a remote control device are installed inside the ship body of the electric ship, the garbage gathering device and a lifting device are installed on the ship body, and the lifting device and the garbage gathering device are positioned at the front end of the ship body. The invention has the advantages of high efficiency, ability of quick travel, convenient operation, labor saving and no secondary pollution.

The invention relates to a novel energy electric ship. The novel energy electric ship comprises a novel energy power generating unit (10), an electric energy storage unit (20), a charging unit (30), an electric propulsion unit (40) and an electricity load as well as a master control unit (50). The electric propulsion unit (40) and the electricity load are direct current loads. Electricity generated by the novel energy power generating unit (10) is stored in the electric energy storage unit (20) through the charging unit (30). The electric energy storage unit (20) is connected with the electric propulsion unit (40) and the electricity load and directly conveys direct current to the electric propulsion unit (40) and the electricity load for providing an operational power supply. The novel energy electric ship provided by the invention can effectively reduce the energy consumption and improve the energy utilization rate, effectively enhance the continuation voyage course, and is free from pollution and low in noise.

The invention discloses an electric ship draft monitoring system, which relates to a ship draft monitoring system. The invention is formed by a slave which is equipped with four electric draft scales, a system host arranged inside a cockpit and a RS485 bus. The system host comprises a microprocessor (100) and external memory storages (600), clock circuits (200), keyboard circuits (300), liquid crystal display circuits (400) and audible and visual alarm circuits (700) which are respectively connected with the microprocessor (100). A first slave (800), a second slave (900), a third slave (1000) and a fourth slave (1100) which are respectively arranged on port forward, starboard forward, port aft and starboard aft are respectively connected with interfaces of host microprocessor (100) through the RS485 bus and interface circuits (500). The invention is capable of automatically collecting the ship draft information, providing the corresponding technical support for the reasonable loading and navigation of the ships. The invention has the advantages of high measuring precision, swift control, reliable communication and good real-time, and can be widely used for the draft monitoring of various ships in rivers and seas.

The invention discloses a water surface robot used for water surface garbage clearing and sorting, and a sorting and fishing method. The water surface robot comprises a ship body of an electric ship;a garbage cabin is formed in the ship body, and a sorting garbage can is detachably mounted in the garbage cabin; a garbage collecting and conveying device is mounted at the bottom of one end of the ship body, one end of the garbage collecting and conveying device is located in the garbage cabin and corresponds to the sorting garbage can in position, and the other end of the garbage collecting andconveying device stretches out of the ship body; the garbage collecting and conveying device comprises a supporting frame rotationally connected to the ship body, a circle of conveyor belt is laid onthe surface of the supporting frame, and a grid is formed on the surface of the conveyor belt; the supporting frame is connected with a lifting device to drive one end of the supporting frame to vertically move, and the conveyor belt is connected with a rotating device to enable the conveyor belt to rotate; fixed baffles are fixedly arranged on the positions, outside the ship body, on the two sides of the end of the supporting frame correspondingly; and movable baffles are arranged on the top end face of the conveyor belt. Water surface garbage is fished and sorted to be dumped into the sorting garbage can, and thus later garbage sorting work is relieved.

The invention relates to a cruising type direct underwater video monitoring system belonging to the field of videography. The cruising type direct underwater video monitoring system comprises an electric ship, a lift towing device, an underwater low-light pick-up device, and the like, wherein the underwater low-light pick-up device comprises a micro-computer (6), a low-light camera (7), an electric zoom lens (8), a waterproof lampshade (10), an underwater compensating and illuminating source (11), a light color controller (12) and a protecting shade, wherein the upper end of the protecting shade is connected with the lift towing device by a bearing member (5), the lower end of the protecting shade is provided with a window (13), a flange platform at the bottom-end periphery of the protecting shade is connected with the waterproof lampshade (10), the underwater compensating and illuminating source (11) and the light color controller (12) are arranged in the waterproof lampshade (10), the low-light camera (7) is arranged on the top of the protecting shade, the upper end of the low-light camera (7) is connected with the micro-computer (6), and the lower end of the low-light camera (7) is connected with the electric zoom lens (8). The cruising type direct underwater video monitoring system can shoot clear video pictures in a muddy water area and is completely controlled in an intelligent mode.

The invention relates to a portable on-line three-dimensional coordinate water quality detection system for turbid water areas. The system comprises an electric ship (1), a device platform (2) and an on-line water body water quality detection device and is characterized in that the on-line water body water quality detection device comprises a water quality detection sensor (6), a foldable device (5), a combined cable, a data storage device (19), a wireless signal transmission device and an integrated and visualized system of a ground control interface, wherein the water quality detection sensor (6) is connected with the lower end of a lifting traction device by the foldable device (5); the input end of the water quality detection sensor (6) is connected with an embedded control system (9) via a cable in the combined cable; the embedded control system (9) is connected with a direct-current power supply (18); and the output end of the water quality detection sensor (6) is respectively connected with the data storage device (19) and a wireless signal transmission device by other cables in the combined cable. By the adoption of the portable on-line three-dimensional coordinate water quality detection system, the complete intellectualization of system control and three-dimensional water quality detection can be realized, and the portable on-line three-dimensional coordinate water quality detection system can be widely applied to fields, such as centers for disease control, aquaculture industry, the environment monitoring of rivers, lakes, ocean water bodies and the like.

An integrated power system for a battery-only electric ship comprises a hull of the battery-only electric ship, wherein the hull comprises a plurality of groups of energy storage power supply systems,electric propulsion systems, propellers, inverters and pure sine wave devices mounted in a cabin body of a ship body; the plurality of groups of energy storage power supply systems comprise supercapacitor modules and lithium battery modules and used for supplying power to the entire ship; the electric propulsion systems comprise water-cooled-motor-driven variable-frequency devices and variable-frequency motors and used for controlling the power supply systems to supply power to the propellers; the propellers are straight-blade omnidirectional propellers combining rudders with paddles and usedfor propelling the ship to navigate and controlling the course; and the inverters and the pure sine wave devices are used for inverting and filtering DC to AC to obtain the three-phase three-wire ACpower supply with 380 V and 50 Hz and the single-phase two-wire AC power supply with 220 V and 50 Hz for the entire ship. The integrated power system for the battery-only electric ship has higher integration, driving force and flexibility, so as to has a broader application prospect in the field of ships.

The invention discloses a method, system and device for treating thermal runaway of an electric ship battery system. According to the scheme of the invention, different treatment methods are adopted for different thermal runaway stages of a battery system, and the thermal runaway in different stages is processed in a graded manner according to the smoke concentration detected by a smoke sensor, temperature signals at different detection points of a battery pack, and voltage signals of a battery pack lug. If the primary treatment condition is satisfied and the secondary treatment condition is not satisfied, an axial flow fan is controlled to operate at a low speed to perform forced ventilation and heat dissipation on the battery pack. If the secondary treatment condition is satisfied and the tertiary treatment condition is not satisfied, a battery management system is controlled to cut off the power output of the battery pack, and the axial flow fan is controlled to operate at a high speed. If the tertiary treatment condition is satisfied, a battery discarding device is controlled to throw the battery pack into water for rapid fire extinguishing, so that the damages to a ship causedby the battery pack fire can be minimized in the shortest time. Moreover, the discarded battery pack can be salvaged to eliminate the pollution to the water quality.

The invention relates to an electric ship power assembly system combined by a super capacitor and a power lithium battery. A main controller is respectively connected with a ship speed control manual operator, a main logic controller, a BMS (Battery Management System) and a propeller driving controller through an internal data bus channel; a coupler of the super capacitor and the power lithium battery is used for achieving energy providing for a super capacitor group and a power lithium battery group; when a ship generates a power requirement and needs to be provided with instant energy, the super capacitor group provides instantaneously outputting high-power energy; when the ship generates a braking requirement, the super capacitor group converts kinetic energy into electrical energy for storage; energy between the super capacitor group and the power lithium battery group is constantly interacted; the super capacitor group is provided with a super capacitor automatic balance system; and the power lithium battery group is provided with the BMS. The electric ship power assembly system combined by the super capacitor and the power lithium battery has the advantage of meeting the requirements of power and continuous cruising ability which are needed by the ship.

A comprehensive energy-charging long-distance all-electric ship with a storage battery is disclosed, comprising a ship body, a console and an electric propulsion device at stern, a battery pack is mounted at the bottom of the ship body, the console is respectively connected with the storage battery and the electric propulsion device via cables, the storage battery is connected with a charger via the console, a solar panel and a wind power generator are mounted on the top of the ship body and are respectively connected with the storage battery via the console; a thermoelectric generating set or a fuel battery is connected with a distribution board having a rectifier, the distribution board is connected with the console and the battery pack. The device can utilize a plurality of comprehensive energies like fuel oil, fuel gas, wind energy, light energy and shore power to form a ship electric station with the storage battery centered in a charging way in order to take the place of mechanical propelling and realize full-power propelling, can meet the demands of long-distance transportation, and has the advantages of high comfort, simple and accurate operation, convenient management, less workload of maintenance, environmental protection, energy conservation, high endurance, high reliability and price performance, optimized spatial arrangement, fast reaction and great mobility and flexibility.

The invention provides a no-actuator motor direct-drive propelling electric ship; the structure of the invention consists of a preposed electric auxiliary rudder and a rear propeller; the preposed auxiliary rudder consists of a hollow bracket, an auxiliary rudder motor and a screw propeller; the screw propeller is fixed at the shaft part of the auxiliary rudder motor; the lower end of the hollow bracket is fixed with the shell of the auxiliary rudder motor; the upper end of the hollow bracket is fixed on the upper part of an auxiliary rudder cylinder; the power wire of the auxiliary rudder motor passes through the hollow bracket and is connected with a controller which is arranged inside a cab; the rear propeller consists of a steering machine, a hollow shaft, a propeller motor and a screw propeller; the hollow shaft is arranged at the tail rudder part of the ship body by a shaft sleeve; the lower end of the hollow shaft is connected with the shell of the propeller motor shell; the upper end of the hollow shaft is connected with the steering machine; the power wire of the propeller motor passes through the hollow shaft and is connected with the ship-used generator or accumulator. Compared with the prior art, the no-actuator motor direct-drive propelling electric ship has the advantages of reasonable design, simple structure, improving power, saving energy source, increasing the space in the cabin, easy maintenance, and the like, thereby having extremely good generalization and usage values.

The invention provides a system and a method for supplying natural energy as power to an electric ship. The embodiment of the invention transforms solar energy and wind energy into electrical energy through a wind-light mixed power station, and is used by a wharf energy-adding station and used for charging a storage battery container hold of the electric ship; at the same time, the system is also connected with a commercial-power electric-fence; when the weather is fine in the daytime and the wind is heavy, the generated energy of the wind-light mixed power station is sufficient, the excess electric quantity can be merged into the commercial-power electric-fence for the use of other loads; when the weather is wet at night or in the daytime and the wind is light, the alternating current of the commercial-power electric-fence can be transformed into direct current so as to be used by the wharf energy-adding station and also used for charging the storage battery container hold of the electric ship; the wind-light mixed power station and the commercial-power electric-fence complement each other, so the natural energy supplied as power to the electric ship stably and reliably, the dependence on non-renewable energy resources such as petroleum, coals, etc. as well as the ship noise pollution can be reduced, energy crisis is relieved, and the atmosphere and the marine environment are protected.

The invention discloses a charging management method and a charger for a lithium ion battery pack, relating to application of the lithium ion battery pack on power equipment. In order to solve the defects of the security, the cycle life and the low temperature charging capacity of the lithium ion battery pack in the prior art, the invention provides the charging management method for the lithium ion battery pack. In the method, the lithium ion battery pack is charged in the manner of periodicity, i.e. each period consists of a charging phase and a standing phase. For the noncontinuous charging method, the concentration polarization and the electrochemical polarization are great in charging, but the concentration polarization and the electrochemical polarization are balanced very quickly due to molecular motion when power is cut off, therefore, the polarization of the battery can be reduced or eliminated, the security of the battery pack is greatly improved, the cycle life is prolongedand the low temperature charging capacity is enhanced. The charging method can be applied to the lithium ion battery pack of electric equipment, such as an electric bicycle, an electric automobile, an electric ship, an electric plane, a submarine, a torpedo, and the like.

The invention relates to a comprehensive charging system of a large inland river electric ship. The comprehensive charging system comprises a charging station, an outdoor integrated centralized shoreelectricity box and a charging gun module. The charging station provides an alternating current power supply and a direct current power supply to the outdoor integrated centralized shore electricity box and the charging gun module. The outdoor integrated centralized shore electricity box is used for collecting a wharf shore base alternating current power supply and direct current power supply, charging or supplying electricity to the ship in a centralized mode, and monitoring the charging or electricity supplying state. The charging gun module is used for enabling the integrated centralized shore electricity box to be in butt joint with the large pure electric ship and meanwhile conducting alternating current electricity supplying and direct current electricity supplying. By adopting the comprehensive charging system, the number of electricity transmission conducting wires required for direct current electricity transmission lines with the same transmission power is small, resistance heating and electric energy loss are small, reactive power loss of inductive reactance and capacitive reactance is avoided, the transmission power is greatly increased through reducing of the electricity transmission unit loss, and the energy saving effect in electricity transmission is improved.

An oil-electric combined charge long-distance all-electric ship with storage battery is disclosed, a pilothouse of a ship body is inside provided with a console, an electric propulsion device is arranged at stern, a battery pack is mounted at the bottom of the ship body, and the ship body is also provided with a thermoelectric generating set that is connected with a distribution board having a rectifier. By mounting the battery pack and the thermoelectric generating set on the ship, the invention can utilize two energies including shore power and high energy fuel, and can sufficiently utilize clean energy at locations where the shore power is present, in order to reduce smoke dust, noise, odor and oil / water pollution and to improve working environment on the ship. The invention regards the high energy fuel and the shore power as a composite energy to achieve energy balance, forms a ship electric station with the storage battery centered in a charging way in order to realize full-power propelling, and integrates the advantages of storage battery electric ship and traditional internal combustion engine ship with a view to double index of environment protection and energy conservation as well as endurance. The invention has the characteristics of accuracy control, high endurance, environment protection, energy conservation, and simple and convenient management and operation, and is the electric ship similar to oil-electric hybrid electric vehicle.

An electric ship Hybrid main power supply system and a control method are disclosed, the main power supply is composed of a supercapacitor bank and a main lithium ion battery pack, DC / DC interface convert and supercapacitor bank are combined into an integrated energy storage device, and that hybrid main pow supply system of an electric ship is divided into three structures, namely, a DC bus DC electric propulsion main power supply system, a DC bus AC electric propulsion main pow supply system, and an AC bus AC electric propulsion main power supply system. The hybrid main power supply system comprises a DC bus DC electric propulsion main power supply system, a DC bus AC electric propulsion main power supply system and a DC bus AC electric propulsion main power supply system. A supercapacitor and a lithium ion battery with that characteristic of high power density, short char time, large instantaneous output power, absorbable regenerative energy and the like are adopted to compose a mixed main power supply, and the advantages of the supercapacitor and the lithium ion battery are complemented by utilizing respective characteristics, thereby lightening the burden of the lithium ion battery, prolonging the service life of the supercapacitor and playing the role of stabilizing the ship power network.

A watercraft includes a pair of inflatable pontoons. Releasably affixed atop each of the pontoons and aligned therewith are inner and outer lengthwise frame members. Forward and aft beamwise frame members are affixed to the inner and outer lengthwise frame members. Primary arch members are affixed to the forward and aft beamwise frame members. A main fabric panel is stretched between the pair of primary arch frame members, the forward beamwise frame member, and the aft beamwise frame member. A motor mount is affixed centrally to the aft beamwise frame member, the motor mount being configured to removably support a motor assembly. Aft panel side members are rotatably-lockably affixed to the aft beamwise frame member and joined by an aft panel top member. An aft fabric panel is stretched between the aft panel side members, the aft beamwise frame member, and the aft panel top member.

An electric boat comprising a boat housing with a rechargeable battery bank; two wind turbines disposed in sides of the boat housing, the wind turbines are driven by oncoming wind; a first turbine system operatively connected to the wind turbines via a first drive shaft; a transformer's power inverter / charge controller operatively connected to the rechargeable battery and to the first turbine system; an electric motor operatively connected to the transformer's power inverter / charge controller or rechargeable battery; jet pump for propelling the boat, the jet pump is operatively connected to the electric motor; and a plurality of solar panels disposed on the boat housing operatively connected to the rechargeable battery.

The invention relates to a propulsion unit of contra-rotating propellers of an electric ship, which is a world most advanced ship power propulsion unit which takes an electromotor (direct current or alternating current) as a main engine to directly drive a gear case the transmission ratio of which is 3:1-40:1, can realize carbon-free zero emission (or reduce carbon emission), complies with the state energy and environmental protection policy and is suitable for various types and power, wherein the gear case is jointly combined with high-efficiency energy-saving contra-rotating propellers. Since the electromotor per se has the aheading function, the backing-up function and the frequency-change speed regulation function, the gear case only has the speed reducing function and the power distributary function, and even the electromotor directly drives two pairs of rotating propellers only by a power distributary mechanism without speed reduction. Moreover, all pieces in the case are symmetrically arranged, and the electromotor transfers the power to the two pairs of rotating propellers by means of a straight line via the gear case, and therefore, the propulsion unit has simpler and more compact structure, stable operation and low noise, automatic-regulation adaptation capability and overload protection capability. The energy saving value of the whole propulsion unit of the contra-rotating propellers can reach 12-15 percent, and the navigational speed and the propulsion efficiency are increased by 10-12 percent. The invention is the most ideal environmental-protection scheme for the propulsion upgrading and updating of modern ships.

The invention discloses a main power supply storage battery grouping type independent power supply and charging system of an electric ship. Main power supply storage batteries are divided into n groups 1G-nG; the output ends of the storage battery groups are subjected to short circuit protection through fuses and then are connected with respective segmented busbars; the segmented busbars are usedfor mutual backup; each storage battery group is configured with a charger and is provided with n main switches 1Q-nQ; each segmented busbar is connected with the wire inlet end of one main switch; and the wire outlet ends of the main switches 1Q-nQ are connected to a direct-current busbar. According to the system, an existing method for parallel power supply of multiple storage battery groups based on a DC / DC converter is replaced with independent power supply of the grouped main power supply storage batteries of the electric ship, so that the technical problem that the multiple storage battery groups are directly connected in parallel to form a circulating current is solved; and the grouped storage batteries are simultaneously and independently charged, so that the problem that the charging power is excessively high in the prior art is solved, and the technical problem that the charging time is excessively long due to the fact that the multiple storage batteries are charged in sequence is solved.

The invention relates to an electric ship water-surface battery replacing and charging station. The electric ship water-surface battery replacing and charging station comprises a fixed pile, a floating table and a charging device; and the fixed pile is fixed to the designated water area position, the floating table is fixed to a water area through the fixed pile, the floating table is provided with a plurality of clamping positions for docking of battery ships, the charging device is arranged on the floating table, and the charging device is provided with charging power supplies provided for docked battery ships of all the clamping positions of the floating table. The electric ship water-surface battery replacing and charging station can allow the battery ships (namely electric ships) to use on the water area for a long time, or serves as a midway charging station or a battery replacing station when the electric ships voyage, and thus the ships can sail farther.

The invention provides an energy-saving pneumatic / electric boat capable of making hydrogen and removing carbon dioxide bubbles. According to the technical scheme of the invention, firstly, a gasoline engine on a fishing boat is dismantled the fishing boat is transformed into an electric boat or a pneumatic boat, such as a jet aircraft, a propeller is changed to a position near a bow, the water resistance at the bottom of the boat is reduced by more than 30% through the bubble increment scheme; secondly, a screw rod at a buttock is still remained, the electric motor transformation is arranged in the position where the gasoline engine is removed, transformation is implemented on the existing boat as soon as possible and the corresponding effects can be obtained as early as possible. Furthermore, the boat above the medium size can use surplus offshore electricity to make hydrogen, a small part of electricity is used for fresh-keeping of aquatic products and the like, and a large part of electricity is stored in a container with two copper safety valves and can be sold after the boat is harbored; furthermore, the carbon dioxide removing boat which can generate electricity for sale when the boat is harbored is a ultra-safe and stable boat which comprises a lightning protection rod and an anti-transverse wave gas container.

The invention discloses a self-powered self-oxygen-supply unmanned surface vehicle. The unmanned surface vehicle comprises an electric ship powered by a lithium battery, wherein a solar panel for collecting solar energy and converting the collected solar energy into electricity is laid on the upper surface of the electric ship; a semi-circle supporting frame is arranged at the middle part of the electric ship; a wind-driven generator is hung under the semi-circle supporting frame; a gasoline generator is fixedly arranged in a cabin of the electric ship; an output end of the solar panel, an output end of the wind-driven generator and an output end of the gasoline generator are respectively connected with the lithium battery through a hybrid power controller to charge the lithium battery; and an ultra micron bubble generator is fixedly arranged on the electric ship, and a spray is arranged at the bottom end of the ultra micron bubble generator. According to the self-powered self-oxygen-supply unmanned surface vehicle disclosed by the invention, a hybrid power function of wind power generation, solar power generation and gasoline generation is adopted, so that the self-powered self-oxygen-supply unmanned surface vehicle is free from great influence of a cloudy and rainy weather or working capacity, the efficiency is improved, and manual cost is reduced; and through the ultra micron generator, in-situ oxygen supply or surface-source oxygen supply in any water area is realized, so that the water quality is purified, and oxygen dissolving environment of the whole water area is improved.

The invention relates to a microgrid energy storage-based wireless charging apparatus for a pure electric ship. The direct current output end of a microgrid system is connected with the direct current input end of a chopping wave power oscillator; the alternating current output end of the chopping wave power oscillator is connected with the signal input end of an electromagnetic field transmitting coil module; the signal input end of a chopping wave power oscillation controller is connected with the signal output end of the chopping wave power oscillator; the control signal output end of the chopping wave power oscillation controller is connected with the control end of the chopping wave power oscillator; the signal output end of an electromagnetic field receiving coil module is connected with the signal input end of a rectifying and filtering chopper; the signal output end of the rectifying and filtering chopper is connected with the signal input end of an electric energy storage apparatus; and the charging end of the electric energy storage apparatus is used for charging the pure electric ship. The invention provides a novel microgrid energy storage-based wireless charging way, which is energy-saving, environment-friendly, and high in efficiency, for the pure electric ship.

The invention discloses an improved electric ship provided with a brake device and used for municipal administration. The improved electric ship comprises a ship body. A first motor is fixed to the middle portion of the ship body. An eccentric block is connected with the first motor and is driven by the first motor to rotate. A push plate is arranged behind the first motor. An arc groove is formed in the side, facing the first motor, of the push plate. The outer end edge of the eccentric block abuts against the arc groove and exerts pushing force. Sliding pillars are arranged on the side, opposite to the arc groove, of the push plate. The ship body is further provided with sliding grooves matched with the sliding pillars. The sliding grooves are internally provided with springs which are used for abutting against the ends of the sliding pillars. The sliding grooves are further provided with limiting blocks which are used for limiting the sliding pillars to prevent the sliding pillars from sliding out of the sliding grooves. Two drive assemblies are symmetrically arranged on the two sides of the ship body. The ship body is pushed through the reciprocating movement of a driving plate, so that the technical problem that in the prior art, a ship body propeller can be stuck by weed is solved; and the structural design is reasonable, and practicability is achieved.

The invention relates to the field related to ships, in particular to a water charging device for an electric ship. The water charging device for the electric ship comprises a floating component, a drainage component, a waterproof component, a charging component and a controller. The floating component comprises a loading bin and two floating air bags, the loading bin is of a rectangular hollow structure with an open top end, a middle-layer plate is also arranged in the loading bin, the middle-layer plate is fixedly installed in the loading bin, the two floating air bags are arranged at the bottom ends of the two sides of the loading bin, the two floating air bags bear the loading bin to float on the water surface in the working state, the drainage component is installed in the loading bin, the drainage component is positioned below the middle-layer plate, the waterproof component is fixedly installed on the middle-layer plate, the charging component and the controller are both arranged in the waterproof component, the whole set of charging component floats in water through the floating component, an electric wire is pulled from the shore and is connected with the whole set of charging component, the waterproof component is arranged outside the charging component, thus the charging component is protected, and the problem that the electric ship cannot be charged in water is solved.

The invention provides a pure electric ship charging plug which comprises a main body, an end cover, an elastic hinge, a sealing adhesive strip, a buckle, a clamping groove, pressing plates, supporting plates, claws, return springs, a rectifier filter, a printed circuit, a switching tube, a voltage transformer and a high-frequency rectifier filter. The end cover is fixed on the upper end surface of the main body by the elastic hinge. The sealing adhesive strip is installed at the edge of the lower end surface of the end cover. The buckle is installed on a corner portion of the lower end face of the end cover. The clamping groove is mounted in the upper end surface of the main body, and the return springs are mounted on the side surfaces of the main body. The supporting plates are mounted on the upper end surfaces of the return springs, and the pressing plates are mounted on the right sides of the upper end surfaces of the supporting plates. The claws are fitted on the right end surfaces of the supporting plates. A DC output mechanism is arranged in the main body. The voltage transformer is connected to the high-frequency rectifier filter through a power supply line. The pure electric ship charging plug of the invention is reasonable in structure, good in waterproof performance, high in charging efficiency, convenient to operate, and is safe and reliable.

The invention provides an all-electric ship economic dispatching method and system based on virtual energy storage. The method comprises the following steps: a virtual energy storage establishment step: establishing a strong nonlinear relationship between the power required by an electric propulsion load and the ship speed; a physical energy storage establishing step: establishing a storage battery as a shipborne physical energy storage charging and discharging equation; a diesel generator building step: defining an oil consumption formula of the diesel generator per hour; an all-electric ship economy scheduling model establishing step: according to the strong nonlinear relationship and the oil consumption formula, setting an objective function of lowest fuel cost and carbon emission of the all-electric ship; and a virtual energy storage all-electric ship economy scheduling model establishing step: according to the target function, solving the economy scheduling problem of the all-electric ship by adopting a particle swarm optimization algorithm. Through virtual energy storage, the comprehensive electric propulsion system can be better utilized, and the fuel efficiency of the diesel generator is improved, so that the fuel cost is reduced, and the environmental friendliness is improved.