2289results about "Propulsion power plants" patented technology

The invention provides a ship shaft power generation and lithium battery coordinated multi-working-condition energy optimization management system, which is applied to the technical field of ship power systems and energy management and comprises a data acquisition module, an energy optimization processing module and a power regulation and control module, wherein the energy optimization processing module is provided with a prediction unit, a working condition identification unit, a loss evaluation unit and a decision-making unit, the prediction unit is used for predicting a ship load demand in a preset period, the working condition identification unit is used for identifying a ship operation working condition, and the loss evaluation unit is used for determining a life loss factor by combining a prediction result and an energy storage unit state; the decision-making unit generates a regulation and control instruction based on the life loss factor and the state of the power generation unit to realize power distribution of the power generation unit and the energy storage unit; according to the system, multi-working-condition energy consumption requirements of the ship are met, meanwhile, comprehensive optimization of fuel consumption cost and energy storage unit service life loss cost is achieved, the energy utilization rate is increased, the service life of the energy storage unit is prolonged, and the full-life-cycle operation cost of the ship is reduced.

The invention discloses a control method and system based on transient impact suppression in main and auxiliary power switching, and relates to the technical field of ship power system.The method comprises the steps that dynamic parameters of a ship main and auxiliary power system are collected in real time through a multi-source sensor, transient feature extraction and correlation analysis are carried out on the dynamic parameters, and transient impact suppression is carried out on the dynamic parameters; constructing a multi-dimensional impact feature library containing an impact strength quantized value, a power sudden change gradient and an energy compensation demand; and based on the impact feature library, generating a hybrid energy storage cooperative control instruction set through a dynamic weight distribution algorithm, executing a staged transient suppression control sequence in a preset time window, and executing the staged transient suppression control sequence in the preset time window. According to the control method and system based on transient impact suppression in main and auxiliary power switching, stable operation of a ship power system is guaranteed, and meanwhile the service life of equipment is prolonged.

The utility model discloses a water area propeller and water area movable equipment. The water area propeller comprises a machine body, an operation device and a locking module. A propelling device used for outputting propelling force for propelling the water area carrier to move is arranged at the end of the machine body. The operation device is rotationally connected to the end, away from the propelling device, of the fuselage body through a transverse connecting shaft, can be folded or unfolded with the fuselage body and is used for being operated by a user to control the water area propeller to operate. The locking module comprises a first locking unit and a second locking unit, and the first locking unit and the second locking unit are arranged in the operation device and the machine body respectively. The operation device and the machine body are locked by the meshing force between the first locking unit and the second locking unit at the position between the transverse connecting shaft and the propelling device, and the operation device forms a suspension beam capable of loading the machine body between the transverse connecting shaft and the locking module.

The utility model discloses a water area propeller and water area movable equipment. The water propeller is used for connecting a water carrier to propel the water carrier to move in the water. The water area propeller comprises a body and an operation device. A propelling device used for outputting propelling force for propelling the water area carrier to move is arranged at the end of the machine body. The operation device is rotationally connected to the end, away from the propelling device, of the fuselage body through a transverse connecting shaft, can be folded or unfolded with the fuselage body and is used for being operated by a user to control the water area propeller to operate. The operation device is provided with a first locking unit, the machine body is provided with a second locking unit, and when the operation device and the machine body are in a folded state, the first locking unit and the second locking unit lock the operation device and the machine body at the position between the transverse connecting shaft and the propelling device. And a suspension beam capable of loading the fuselage main body is formed between a locking position of the operating device between the first locking unit and the second locking unit and a connecting position of the operating device on the transverse connecting shaft.

The invention relates to a ship power supply management method based on a particle swarm algorithm. The method comprises the steps of constructing a sample set R, outputting a load prediction curve function based on current data, executing genetic algorithm global coarse search, searching an elite solution set P, executing particle swarm fine search, and judging whether continuous G generations in the particle swarm fine search update an optimal solution gbest or not. According to the ship power supply management method based on the particle swarm algorithm, through cooperation of genetic algorithm global coarse search and particle swarm fine search, high-dimensional space coverage and fine optimization precision are considered, compared with a single particle swarm algorithm search mode, the efficiency is higher, multi-target weight dynamic adjustment is matched, and the power supply efficiency is improved. According to the method, the single deviation that efficiency neglects cost preferentially or cost neglects stability preferentially is avoided, and a catastrophe mechanism and a closed-loop iteration mode are adopted to adapt to ship dynamic working conditions, so that the problems that high-dimensional space search efficiency is low, local extremum is easy to sink, and multi-target optimization deviates to a single target are solved.

A tiller is for a marine drive. The tiller has a tiller arm and a grip on the tiller arm, the grip being rotatable out of a center position to control speed of the marine drive. The grip is operable in a right-hand mode in which the grip is only rotatable in a right-hand rotational range away from the center position and the grip is alternately operable in a left-hand mode in which the grip is only rotatable in a left-hand rotational range away from the center position, wherein the right-hand rotational range is diametrically opposite of the left-hand rotational range. A switching device is movable into a right-hand switch position in which the grip is operable in the right-hand mode and alternatively movable into a left-hand switch position in which the grip is operable in the left-hand mode.

The utility model discloses a water area propeller and water area movable equipment. The water area propeller comprises a machine body, an operation device and a locking module. A propelling device used for outputting propelling force for propelling the water area carrier to move is arranged at the end of the machine body. The operation device is rotationally connected to the end, away from the propelling device, of the fuselage body through a transverse connecting shaft, can be folded or unfolded with the fuselage body and is used for being operated by a user to control the water area propeller to operate. The locking module comprises a first locking unit and a second locking unit, and the first locking unit and the second locking unit are arranged in the operation device and the machine body respectively. The locking module locks the operation device and the machine body main body at the position between the transverse connecting shaft and the propelling device through the insertion force between the first locking unit and the second locking unit, and the operation device forms a cantilever beam capable of loading the machine body main body between the transverse connecting shaft and the locking module.

The invention discloses a new energy unmanned ship battery power control method and system, and the method comprises the steps: an unmanned ship total system sends a start-stop instruction to a BMS, and carries out the automatic awakening and starting of a battery pack; after the BMS is started, the voltage of a battery module, the current of a main loop and the temperature of key components are detected, and if normal, a pre-charging circuit is started to pre-charge a high-voltage loop capacitor; after pre-charging is completed, the BMS disconnects the auxiliary contactor and closes the main contactor, and the battery module supplies power to the electric equipment; during operation, the BMS acquires operation data in real time and uploads the operation data to the unmanned ship total system for monitoring through an external CAN bus; when the multiple battery packs are connected in parallel, cooperative charging and discharging control is carried out through an external CAN bus; the unmanned ship main system sends a shutdown instruction, and the BMS cuts off the main contactor; when abnormity is monitored, the BMS triggers the main fuse to fuse and cuts off self power supply. According to the method, the problem of safe starting is solved, the battery state monitoring precision is improved, a multi-dimensional safety protection system is constructed, and multi-battery-pack cooperative control is optimized.

The invention provides a ship LNG fuel supply and tail gas carbon dioxide capture system. The ship LNG fuel supply and tail gas carbon dioxide capture system comprises an LNG storage tank, a CO2 separation device, a CO2 compressor, an ejector, an LNG vaporization heater, a mixed gas heat exchanger, a flash tank, a liquid CO2 storage tank, a flue gas heat exchanger and an engine. According to the system, LNG cold energy and engine tail gas heat energy can be effectively utilized, and the energy consumption of the system is reduced.

The invention relates to the technical field of power batteries, in particular to an energy management method for a power battery echelon utilization system, which comprises the following steps: a dynamic parameter synchronous acquisition step: synchronously acquiring operation parameters of each battery monomer in a ship energy storage system and working condition environment parameters representing a ship motion state, and establishing a time synchronization relationship for all the parameters; a health state dynamic correction step; calculating the maximum output power; and a self-adaptive power distribution step: calculating the dynamic weight of each battery cluster based on the total demand power of the system, the real-time maximum output power of each battery cluster and the consistency degree of the internal health state of each battery cluster, and distributing the total demand power to each battery cluster to execute output according to the dynamic weight of each battery cluster. By accurately and synchronously collecting and associating parameters of battery operation and ship motion states, the states of the battery and the working environment of the battery can be comprehensively mastered in real time, accurate data support is provided for subsequent health state evaluation and energy management, and misjudgment caused by information lag or inconsistency is avoided.

The invention discloses a marine wind-solar hybrid driving device and a control method, and relates to the technical field of ship power systems, and the driving device comprises a wind energy collection unit, a solar energy collection unit, a conduction unit and a power distribution structure. According to the marine wind-solar hybrid driving device and the control method, efficient cooperative utilization of wind energy and solar energy is realized by constructing a real-time energy flow network and adopting a model prediction control algorithm; under typical working conditions, compared with a traditional scheme, the wind-solar cooperative power generation efficiency is remarkably improved, and the energy switching loss is greatly reduced; and secondly, a self-adaptive adjustment mechanism is designed for an extreme environment, so that stable and efficient operation of the system under special conditions such as high temperature and low temperature is effectively guaranteed, and the problem that the energy conversion efficiency in a traditional system is greatly reduced is avoided.

A method for controlling a marine drive configured to propel a marine vessel. The method includes receiving a destination for the marine vessel, receiving a demand request for operating the marine drive, and operating the marine drive at an actual demand corresponding to the demand request. The method further includes determining a required energy for the marine drive to propel the marine vessel to the destination at the actual demand and determining a remaining energy of an energy source available for operating the marine drive. The method further includes comparing the required energy to the remaining energy and, when the remaining energy is less than the required energy, automatically iteratively reducing the actual demand for operating the marine drive until the remaining energy equals or exceeds the required energy determined for the marine vessel to reach the destination.

An antenna arrangement for a watercraft is disclosed. In an embodiment, the antenna arrangement comprises a first antenna configured to wirelessly communicate with a wireless user device, the first antenna for securement to a top-side of a watercraft; a second antenna configured to wirelessly communicate with a wireless control unit, the second antenna for securement to an underside of the watercraft to place the second antenna in juxtaposed relationship with a third antenna of a wireless control unit; and a radio frequency (RF) transmission line conductively coupling the first antenna and the second antenna.

An input device for navigational control of a marine vessel has processing circuitry to obtain a requested input device input in response to a maneuvering of the input device; obtain a distance between the marine vessel and a closest obstacle located in a direction indicated by the requested input device input; and control saturation of the input device at least based on the distance. The processing circuitry is integrated in the input device and configured to control the saturation independently of control circuitry of the marine vessel external to the input device.

The utility model discloses a water area propeller and water area movable equipment. The water area propeller comprises a machine body, an operation device and a locking module. A propelling device used for outputting propelling force for propelling the water area carrier to move is arranged at the end of the machine body. The operation device is rotationally connected to the end, away from the propelling device, of the fuselage body through a transverse connecting shaft, can be folded or unfolded with the fuselage body and is used for being operated by a user to control the water area propeller to operate. The locking module comprises a first locking unit and a second locking unit, and the first locking unit and the second locking unit are arranged in the operation device and the machine body respectively. The suction force between the first locking unit and the second locking unit of the locking module locks the operating device and the fuselage body at the position between the transverse connecting shaft and the propelling device, and the operating device forms a cantilever beam capable of loading the fuselage body between the transverse connecting shaft and the locking module.

An outboard motor includes a steering mechanism including a pinion located in a central portion of an outboard motor body in a right-left direction and operable to rotate together with the outboard motor body, a rack operable to linearly move to rotate the pinion, and a rack position detector on a first side of the rack opposite to the pinion to detect a position of the rack.

The invention discloses a dynamic power management method for an all-electric ship hybrid energy storage system. The method comprises the following steps: S1, establishing a direct-current voltage dynamic model and a ship hybrid energy storage system model based on a ship micro-grid structure of a ship; s2, establishing a multi-working-condition propulsion power model based on the movement mechanism of the ship; s3, establishing a joint SOC-SOP estimation model based on the nonlinear relationship among the state of charge, the battery power characteristics and the ambient temperature; s4, on the basis of the direct-current voltage dynamic model, the ship hybrid energy storage system model and the multi-working-condition propulsion power model, establishing a dynamic power distribution model; and S5, estimating an available power range of the battery through a combined SOC-SOP estimation model, inputting the available power range into the dynamic power distribution model, obtaining a dynamic power distribution strategy, and realizing dynamic power distribution of the ship hybrid energy storage system. According to the method, the dynamic power management of the hybrid energy storage system of the all-electric ship under the uncertain navigation condition is optimized, and the stability and the economical efficiency of a ship power system are improved.

The invention provides a resetting system and a resetting control method for an offshore floating energy island, and the resetting system comprises a counterweight adjusting module which comprises a servo motor, an annular mooring chain track and a counterweight block. The buoyancy adjusting module comprises air supply equipment and an air bag. And the thrust adjusting module comprises a horizontal thrust adjusting module and a vertical thrust adjusting module. And the monitoring module comprises a plurality of groups of sensors to monitor the position information of the energy island in real time. When the energy island is in vertical unbalance, the servo motor drives the balancing weight to move along the annular mooring chain track, and first-stage reset adjustment is carried out; further, the air supply equipment inflates and deflates the air bag for secondary reset adjustment; further, a vertical thrust adjusting module provides vertical thrust to carry out three-stage reset adjustment; when the energy island is horizontally unbalanced, the horizontal thrust adjusting module provides horizontal thrust and pushes the floating body main structure to achieve horizontal reset adjustment. According to the scheme of the invention, through a multi-stage reset strategy, the reset efficiency of the energy island and the adaptability in an extreme environment are improved.

A transportable outboard motor has a tiller which is pivotable about a lateral tilt axis into a plurality of tilt positions and also pivotable about an axial yaw axis into a plurality of yaw positions. The tiller is pivotable about the axial yaw axis into a straight-ahead position, into a port yaw position which is oriented towards the port side relative to the straight-ahead position, and into a starboard yaw position which is oriented towards the starboard side relative to the straight-ahead position. The tiller is pivotable downwardly about the lateral tilt axis from the port yaw position, and downwardly about the lateral tilt axis from the starboard yaw position. Pivoting the tiller into the plurality of yaw positions creates space for a user to manually grasp a swivel tube and thereby lift the transportable outboard motor from a rear-laydown position.

The present invention relates to an ammonia recovery / discharge system and a control method therefor. The ammonia recovery / discharge system of the present invention is designed for a ship using ammonia as fuel and comprises: an ammonia tank; an engine; a fuel supply unit; a fuel recovery unit; an air supply line; an air discharge line; and a working fluid circulation unit, wherein the working fluid circulation unit comprises an ejector that supplies high-pressure working fluid to circulate air or ammonia in the working fluid circulation unit.

An outboard propulsion unit (10) mountable on a watercraft structure (3) such as a transom comprises a main body (12, 14) and a propulsion leg (16) carrying a thrust generator (18) and being rotatable relative to the main body for steering. The propulsion unit (10) comprises a helical actuator (32) for rotating the propulsion leg relative to the main body. This provides for a more compact motor with a lower body, which allows the motor to be tilted horizontally aft of the transom and facilitates towing.

In one aspect, a wireless remote controller for a personal watercraft is provided that includes a watertight housing forming a watertight compartment. The housing includes a through hole extending through the housing from an upper side of the housing to a lower side of the housing. The remote controller includes a throttle interface removably attached to the housing such that the throttle interface is movable between a first position and a second position and at least a portion of the throttle interface positioned within the through hole of the housing. The remote controller further includes a sensor positioned within the watertight compartment of the housing to detect a position of the throttle interface.

A marine drive includes a torpedo housing having an open end and an electric motor assembly with an electric motor configured to power a propulsor for propelling the marine drive in water. The electric motor assembly includes a motor housing which is nested in the open end such that such that a first portion of the motor housing extends into the torpedo housing and such that a second portion of the motor housing extends from the torpedo housing and is exposed to the water for cooling thereof. The torpedo housing defines an opening which partially exposes the first portion of the motor housing to the water for cooling thereof.

A marine drive assembly is configured for propelling a marine vessel in a body of water. The marine drive assembly may include a drive unit having a propulsor for generating a thrust force in the body of water, a mounting bracket for mounting the drive unit to the marine vessel, the mounting bracket having an exterior facing portion outside the marine vessel and an interior facing portion inside the marine vessel, and a heat exchanger configured to exchange heat between water from the body of water and a cooling fluid for cooling a component of the marine drive assembly, wherein the heat exchanger is coupled to the exterior of the mounting bracket.

The present invention relates to a fuel processing system and a ship comprising the same, comprising: a fuel supply unit for supplying fuel discharged from a fuel storage tank to a demand site; a fuel recovery unit that recovers the remaining fuel returned from the demand location; and a fuel processing unit for collecting the fuel output from the fuel supply unit or the fuel recovery unit, the fuel processing unit including a plurality of absorption tanks for generating waste water by collecting the fuel with water, the fuel output from the fuel supply unit or the fuel recovery unit sequentially passes through the plurality of absorption tanks and is dissolved in water stored in the absorption tanks, thereby converting the fuel into waste water.

The invention provides a blade-fused full-rotation shaftless rim propeller, and relates to the technical field of propellers, the blade-fused full-rotation shaftless rim propeller comprises a propeller body, the propeller body comprises a propeller shell, a first driving mechanism and a blade assembly, and the propeller shell is provided with a cylindrical mounting shell and a containing space located on the inner side of the mounting shell; the first driving mechanism comprises a stator assembly and a rotor assembly which are coaxially arranged on the inner side of the accommodating space; the paddle assembly comprises a plurality of main paddles and a plurality of auxiliary paddles, the main paddles are evenly distributed along the inner circumference of the rotor assembly, the guide edges of the main paddles are of zigzag bionic structures, the auxiliary paddles are located between the adjacent main paddles, the chord length of the auxiliary paddles is 30%-50% of the chord length of the main paddles, and the front edges of the auxiliary paddles are arranged close to the guide edge sides of the main paddles. Through the collaborative design of the main paddle and the auxiliary paddle, the sawtooth-shaped guide edge is used for damaging the vortex continuity, the auxiliary paddle guides secondary flow and inhibits pressure fluctuation, and the technical problems that a traditional propeller is high in noise, low in efficiency and disordered in flow field in a closed flow channel environment are solved.

A marine drive may include a frame configured to support the marine drive with respect to the marine vessel, a cowling enclosing a portion of the frame in a cowling interior, a steering arm configured such that movement of the steering arm causes rotation of the marine drive with respect to the steering axis, and a flexible rigging connector extending from the cowling interior to a location in the marine vessel. The flexible rigging connector may extend through a guide passage in the steering arm. Additionally or alternatively, the steering arm may include a base member and a mounting member selectively movable relative to the base member to adjust the length of the steering arm.

A transportable outboard motor has a midsection and a tiller extending forwardly from the midsection. The tiller is pivotable about a lateral tilt axis into a downward tilt position in which the tiller is oriented transversely to the lateral and longitudinal directions. The tiller in the downward tilt position is configured to permit manual carrying of the transportable outboard motor.

The invention provides a propulsion system and an electric kayak. The propelling system comprises a shell, a main shaft, a propeller, an electric driving device and an electric control device. The shell is provided with a cavity. The main shaft is rotatably mounted on the shell and extends from the cavity of the shell to the outside of the shell. The propeller is arranged outside the shell and connected to one end of the main shaft. The electric driving device is connected to the other end of the spindle and drives the spindle to drive the propeller to rotate. The electric control device is electrically connected to the electric driving device and controls the propelling system.

An electric propulsion device includes a motor for rotating a propeller and a cooling device for cooling the motor. The cooling device includes a first cooling system and a second cooling system. The first cooling system includes a heat exchanger that uses water from outside the electric propulsion device as cooling water and cools refrigerant, and a supply passage that supplies the water from outside the electric propulsion device as the cooling water to the heat exchanger. The second cooling system includes a motor cooling jacket that is provided in the motor and cools the motor with the refrigerant, and a circulation passage that circulates the refrigerant between the heat exchanger and the motor cooling jacket.