343results about "Power plants using propulsion unit combinations" patented technology

The invention relates to a ship hybrid power energy management method and device, ship equipment and a medium, and belongs to the technical field of energy management.The ship hybrid power energy management method comprises the steps that operation data of a hybrid power ship are obtained, and a hybrid power ship model is constructed based on the operation data of the hybrid power ship; the operation cost and the pollutant discharge cost of the hybrid power ship are calculated based on the hybrid power ship model, and the comprehensive cost is determined based on the operation cost and the pollutant discharge cost; according to the method, the minimum comprehensive cost is taken as an objective function, constraint conditions are set, and parameters of the hybrid power ship model are optimized by adopting a particle swarm optimization algorithm, so that energy management of the hybrid power ship is realized, and optimal energy utilization is realized.

A marine AC generator system includes a marine generator driven by an internal combustion engine and configured to generate an AC current and a rectifier configured to rectify the AC current to provide a DC current. At least one battery is configured to receive and be charged by the DC current. A battery powered inverter is configured to be powered by the at least one battery and to generate a variable current output frequency such that an AC electrical power is provided to a load when the marine generator is not running.

The invention aims to provide a solid hydrogen storage fuel cell underwater vehicle hybrid power system coupled with a water management system, and belongs to the field of hybrid power. According to the invention, the hydrogen fuel cell is combined with a common cell, sufficient, stable and efficient power supply is provided for the underwater vehicle, the limitation of a traditional single energy system in the aspects of cruising ability, power output, energy density and the like is solved, and the comprehensive performance of the underwater vehicle is remarkably improved. A water supply and return integrated circulating water pump is adopted, and efficient and rapid circulation of water inside and outside the underwater vehicle is achieved by integrating water supply and drainage functions. The solid hydrogen storage material is adopted to release hydrogen, one part of hydrogen is conveyed to the fuel cell and participates in reaction to provide power output needed by the underwater vehicle, the other part of hydrogen is recycled and assists the hydrogen storage material in injection, and the underwater closed circulation mode of the underwater vehicle is achieved. And efficient operation and effective utilization of energy are ensured.

The invention relates to the technical field of ship power and propulsion control. The invention provides a multi-source cooperative propulsion control method and system based on hybrid power and a straight wing steering oar. The method comprises the following steps: collecting ship motion state parameters and environment parameters in real time; constructing a multi-objective joint optimization model, and solving an optimal power distribution proportion and an optimal thrust vector under the current working condition by adopting a dynamic programming algorithm; based on the optimal power distribution proportion, a fuzzy PID controller is adopted to dynamically adjust the torque coupling ratio of the diesel engine and the motor; according to the optimal thrust vector calculation result, vector synthesis is carried out on the propulsive force and the steering torque; and predicting the motion state of the ship based on an extended Kalman filter, and correcting the weight coefficient of the multi-target joint optimization model on line in combination with the change rate of the channel boundary distance. The problem that adaptability to complex working conditions is insufficient due to the fact that a traditional control strategy does not fully fuse ship motion states and environment parameters is solved.

The invention discloses a device for starting management of a marine range extender and a control method of the device. The device comprises a storage module, an interactive communication module, an output enabling module, a control module and a man-machine interaction display module. According to the control method, by obtaining working parameters after a system is awakened, whether high voltage is applied or not, whether faults exist or not and shutdown duration are judged, and a pre-starting mode or a to-be-started mode is decided to be entered. During pre-starting, the ISG motor is enabled, parameters are limited, the rotating speed, the torque, the fuel pressure and the like are monitored, and starting is completed or faults are prompted. The range extender can be started after long-term shutdown, response speed and reliability are improved, ship dynamic property and battery safety are guaranteed, and user experience is optimized.

The invention discloses a methanol fuel ship hybrid power system coupled with carbon dioxide in-situ capture and utilization. The methanol fuel ship hybrid power system comprises an SOFC / GT system, a supercritical carbon dioxide cycle power generation system, an organic Rankine cycle power generation system and a carbon dioxide in-situ utilization system. Exhaust gas of a gas turbine in the SOFC / GT system serves as a heat source to be sequentially used for heating cycle working media of the supercritical carbon dioxide cycle power generation system and the organic Rankine cycle power generation system and then enters the carbon dioxide in-situ utilization system. Exhaust gas received by the carbon dioxide in-situ utilization system is condensed through a condenser to separate H2O and then enters a cathode of the porous solid electrolytic cell, the cathode comprises a KOH solution and an anion exchange membrane, an anode comprises water and a cation exchange membrane, an electrode catalyst is bismuth oxide, anode exhaust gas enters the SOFC / GT system, and formic acid discharged by a middle interlayer enters a formic acid storage tank. According to the invention, the carbon dioxide in the waste gas is captured in situ on the methanol fuel ship to generate a high-added-value product, and the energy of a power system is comprehensively utilized.

A multi-power-source vehicle control system comprises: a first power control device configured with one or more power management components, each for generating a corresponding power control signal; a plurality of control units, one of the plurality of control units being connected to the first power control device, the connection among the plurality of control units being configurable to enable a plurality of driving devices to work cooperatively or independently, and each of the plurality of control units being configured to analyze a corresponding power control signal; a plurality of power controllers being correspondingly connected with the plurality of control units and used for outputting drive signals to the corresponding power devices according to the power control signals analyzed by the corresponding control units.

The invention provides an energy management strategy verification platform for a plug-in series hybrid power ship propulsion system. The energy management strategy verification platform comprises a power source module, a power output module, a load simulation module, a transmission module, a sensor measurement module and a control system module, the power source module outputs electric energy through multi-energy cooperation; the power output module generates propelling power according to the electric energy; the load simulation module simulates load characteristics according to the propulsion power; the transmission module is connected with the power source module and the power output module as well as the power output module and the load simulation module; the sensor measurement module collects operation parameters of the verification platform; and the control system module executes an energy management strategy according to the operation parameters and outputs a control instruction. A graphical programming environment is constructed by adopting a modeling code automatic generation system, and a strategy rapid prototype development verification closed loop is formed in combination with a range extender intelligent start-stop control strategy and a multi-mode power generation control strategy.

The invention discloses a range-extended hybrid motorboat system and a control method, and relates to the technical field of new energy engineering, and the system comprises a man-machine interaction unit which is used for receiving an operation instruction and displaying a system state; the system control unit is used for receiving a user instruction and feedback information and issuing a control instruction to the corresponding unit; the high-low voltage unit is used for storing, converting and distributing the electric energy; and the power integration unit is used for providing a fuel power source for the range extending mode and comprises an engine, an engine controller, an electric control ISG motor, an electric control driving motor, a cooling device, a fuel tank and a liquid level sensor. The range-extended hybrid power mode of fuel power generation and motor driving is adopted, the battery is continuously charged or the electric control driving motor is directly supplied with power when the electric quantity is insufficient, energy can be quickly supplemented through refueling, the problems that a pure electric motorboat is short in endurance and inconvenient to charge are effectively solved, and the service life of the pure electric motorboat is prolonged. The advantages of low noise and zero emission of pure electric drive and long endurance of fuel power are achieved.

The utility model discloses a gearbox for an oil-electricity double-engine ship. The gearbox comprises a box body, the diesel oil input component comprises a first input shaft, a first driving gear is sleeved on the first input shaft, and the first input shaft is provided with a first transmission gear and a first clutch; the reversing shaft part comprises a reversing shaft, a second driving gear is sleeved on the reversing shaft, the reversing shaft is provided with a second transmission gear and a second clutch, and the second transmission gear is meshed with the first transmission gear; the motor input component comprises a second input shaft, the second input shaft is sleeved with a third driving gear in an empty mode, the third driving gear is meshed with a first driven gear, the second driving gear is fixedly sleeved with the first driven gear, and the second input shaft is provided with a third clutch; the output shaft component comprises an output shaft and a second driven gear, and the second driven gear is meshed with the first driving gear and the second driving gear. According to the scheme, the diesel engine or the motor is independently used for driving, intelligent switching of the diesel engine and the motor can be achieved at any speed, oil consumption is reduced, and power performance is improved.

The invention provides a multi-working-condition dynamic adaptive ship hybrid power dispatching system, which is applied to the technical field of ship power systems and energy management, and comprises a data exchange module, a working condition module, a hybrid power generation module and an energy management module, wherein the data exchange module realizes cross-protocol data analysis and unified timestamp packaging, and ensures the consistency and real-time performance of data exchange between modules; the working condition module is used for collecting ship working conditions and generating working condition conversion signals, an EMS in the energy management module is used for calculating a scheduling strategy, and the hybrid power generation module executes power distribution and charge-discharge control of the diesel generator set, the axle generator and the battery pack according to the scheduling strategy. Through the data exchange module, the problems of data delay and errors caused by complex protocol fusion and non-uniform clocks are solved, and the dynamic adaptation and response capability of the ship under complex working conditions is effectively improved.

The invention discloses a fuel cell-turbofan engine hybrid power system for a cross-medium aircraft, and relates to the technical field of aero-engines, the system comprises a solid oxide fuel cell, a turbofan engine, a lithium battery, an energy management module, a motor, a propeller, a reforming hydrogen production device and a medium self-adaptive oxidant supply subsystem. In an air flight mode, the system adopts autothermal reforming hydrogen production, a fuel cell and a turbofan engine to cooperatively work, a high-efficiency low-oil-consumption low-speed cruise and high-thrust acceleration mode is provided, and meanwhile, a lithium battery is charged. In the underwater submerging and water surface sailing mode, a turbofan engine flow channel is closed, steam reforming hydrogen production is adopted, a hybrid power system composed of a fuel cell and a lithium battery is used for driving a propeller, the fuel cell provides stable power, and the lithium battery meets the instantaneous high-power requirement. The system solves the problems that a traditional power system is low in efficiency, poor in cruising ability, single in working mode and the like.

The invention relates to the technical field of ship propulsion control, in particular to a ship propulsion motor rotating speed control method based on a long short-term memory network, which comprises the following steps of: collecting historical data in a ship operation process within a period of time, preprocessing the historical data and persisting the historical data into a database; reading historical data in the database, and training a long short-term memory (LSTM) network model; a sensor is used for collecting operation parameters of the propulsion motor in real time, and the operation parameters are converted into an input parameter format of the LSTM model. According to the ship propulsion motor rotating speed control method based on the long short-term memory network, key parameters such as the current value and the frequency of a propulsion motor, the rotating speed of a steam turbine and the rotating speed of the propulsion motor are collected in real time, an LSTM model is used for modeling system dynamic characteristics, and an optimal control instruction is generated in combination with an optimization algorithm; and the precision, stability and adaptability of ship propulsion motor rotating speed control are improved.

The invention discloses a multi-mode wave propulsion unmanned vehicle, which relates to the technical field of unmanned vehicles and comprises a vehicle main body, a dynamic buoyancy adjusting module, a multifunctional intelligent sensing and communication system, a flexible solar power generation unit, an emergency load rejection device, a hanging cable and a dual-mode propulsion system. The wave energy capturing efficiency is improved through the wing body fusion or rotary body wing adding design of the navigation body main body; the dynamic buoyancy adjusting module controls the diving speed and depth through double closed loops; the multifunctional intelligent sensing and communication system integrates a multi-source sensor and a multi-mode communication unit, improves the environment sensing capability and the information transmission efficiency, and has a hierarchical threat response mechanism and the like. The underwater vehicle has the multi-mode movement capacity of water surface cruising, near-water-surface navigation, underwater sneaking and the like, integrates multiple functional modules of wave energy propelling, active propelling, intelligent sensing, dynamic buoyancy adjusting and the like, and aims at improving the cruising ability, the environmental adaptability and the autonomous operation capacity of the underwater vehicle.

To provide a propulsion system, a control program, and a control method for a vessel capable of suppressing deterioration in fuel consumption along with load variation in a propulsion propeller in a vessel including an engine and a rotary machine.SOLUTION: A propulsion system for a vessel includes an engine, a rotary machine, a power converter, and a controller, the controller acquires torque of the engine, torque of the rotary machine, angular speed of the rotary machine, and prefixed moment of inertia for rotational axis conversion of the rotary machine, calculates an estimation value for load torque of the propulsion propeller by using equation of motion for the rotary axis system of the rotary machine, generates a torque command value regarding the torque to be generated by the rotary machine from the propulsion force command value, and compensates the torque command value to cancel fluctuation component of the estimation value of the load torque.SELECTED DRAWING: Figure 2

A hybrid ship propulsion machine includes an internal-combustion-drive propulsion part, a fixing bracket configured to fix the internal-combustion-drive propulsion part to a ship, an electric propulsion part, an elevating device configured to elevate and lower the electric propulsion part; and an attachment bracket attaching the electric propulsion part and the elevating device to the fixing bracket. The elevating device is configured to elevate and lower the electric propulsion part between a position where a second propeller of the electric propulsion part sinks below a water surface and a position where the second propeller comes out of the water surface.

The invention discloses a liquid hydrogen high-temperature superconducting motor and magnetofluid dual-power propulsion system, and aims to solve the problems that an existing ship propulsion system is single in power mode and insufficient in power density. The system comprises a liquid hydrogen storage and supply unit, a cooling unit, an energy conversion unit, a superconducting motor propulsion unit and a magnetofluid propulsion unit, the liquid hydrogen storage and supply unit conveys liquid hydrogen to the superconducting part through the cooling loop, the liquid hydrogen is converted into hydrogen through the heat exchanger after being cooled, the energy conversion unit converts the hydrogen into electric energy and outputs the electric energy in a matched mode, and the superconducting motor propulsion unit and the magnetic fluid propulsion unit generate mechanical energy or electromagnetic force through the electric energy to drive a ship. And the superconducting component is cooled by the cooling loop. The liquid hydrogen in the system has the dual functions of a cooling medium and fuel, a coolant and fuel do not need to be additionally configured, the requirements for silence, high thrust and rapid maneuvering are met, the power density is high, the environmental protection property is good, and the system is suitable for high-performance propelling scenes such as ships, especially submarines.

To provide a vessel capable of improving propulsion performance of each method when a hull is propelled by a wind power propulsion unit and when the hull is propelled by a propeller.SOLUTION: A vessel 1 comprises: a propeller 12 that generates thrust for a hull 11; and a wind power propulsion unit 10 that propels the hull 11 by means of wind power. Thus, the vessel 1 can propel the hull 11 by the wind power propulsion unit 10 when wind is strong, and propel the hull 11 by the propeller 12 when wind is weak. The hull 11 is propelled toward a bow during machine traveling where the hull 11 is propelled by the propeller 12, and the hull 11 is propelled toward a stern during sailing where the hull 11 is propelled by the wind power propulsion unit 10. In this case, the vessel 1 can be structured so as to suit the machine traveling for propulsion of the vessel 1 toward the bow. The vessel 1 can be structured so as to suit the sailing for propulsion of the vessel 1 toward the stern.SELECTED DRAWING: Figure 3

The application discloses a multi-mode switching security joint control method, system, device and storage medium suitable for a hybrid system ship, and belongs to the technical field of automatic control of a ship hybrid system. The control method comprises the following steps: when the hybrid system security fails, if the mode switching device operates normally, stopping the mode conversion work of the hybrid system, controlling the main engine remote control system, the motor remote control system and the energy management system to enter the main engine mode, if the main engine also fails, continuing to detect the working state of the shaft motor, if the shaft motor can operate normally, entering the PTH working mode, otherwise, repairing the hybrid system of the ship; after the hybrid system of the ship fails, the application coordinates the main engine remote control system, the motor remote control system and the energy management system, and unifies the switching to the main engine mode or the PTH mode, so that the working modes of various devices of the hybrid system are synchronously matched, and accidents endangering the safety of the hybrid system are avoided.

A ship propulsion machine (1) includes a propeller (2), an engine (4) configured to rotate the propeller (2), the engine (4) serving as a first power source, a motor (17) configured to rotate the propeller (2), the motor (17) serving as a second power source, an inverter (19) configured to control driving of the motor (17), an engine drive shaft (21) connected to a crank shaft (6) of the engine (4), a motor drive shaft (22) connected to an output shaft (18) of the motor (17), a transmission shaft (23) connected to a propeller shaft (3) provided with the propeller (2), and a power switching mechanism (24) configured to switch a connection mode of the engine drive shaft (21), the motor drive shaft (22), and the transmission shaft (23) to switch a power source for rotating the propeller (2) between the engine (4) and the motor (17).

To avoid a situation where a fuel cell ship is stopped on the sea during navigation even when a failure of fuel cells occurs or the fuel cell reaches a device life during navigation of the fuel cell ship.SOLUTION: A fuel cell ship includes: a propulsion device for generating a propulsion force in a hull by power; a power supply part for supplying the power to the propulsion device; and a degradation rate control part for adjusting a degradation rate. The power supply part has a plurality of fuel cells for generating power by an electrochemical reaction of a fuel, and at least one storage cell.SELECTED DRAWING: Figure 2

The present invention relates to a ship propulsion system wherein, when a change in the output of a main engine occurs or is expected, a controller variably controls the power withdrawal force of a shaft generator in a direction in which the change in the output of the main engine is counterbalanced, thereby maintaining the output of the main engine to be smooth, and the main engine's fuel efficiency and power supply stability engine can thus be improved.

The present disclosure relates to a coupling arrangement (8) comprising: an input shaft (12) and an output shaft (14), the input shaft (12) and the output shaft (14) being aligned along an axis of rotation (28); a rotor (30) of the electric machine (6), which is arranged concentrically with the rotation axis (28); a sleeve-shaped first piston (36); a sleeve-shaped second piston (38); a first coupling sleeve (40) connected to the first piston (36) and arranged to releasably couple the input shaft (12) to the output shaft (14); a second coupling sleeve (42) connected to the second piston (38) and arranged to releasably couple the rotor (30) of the electric machine (6) to the output shaft (14); and a fixed section (44) arranged between the first piston (36) and the second piston (38). The first piston and the second piston are double acting pistons arranged to be displaced relative to the fixed section.

This invention discloses a range-extended hybrid motorboat system and control method, belonging to the field of new energy engineering technology. The system includes: a human-machine interface unit for receiving operation commands and displaying system status; a system control unit for receiving user commands and feedback information and issuing control commands to corresponding units; a high- and low-voltage unit for storing, converting, and distributing electrical energy; and a power integration unit for providing fuel power for the range-extended mode, including an engine, engine controller, electronically controlled ISG motor, electronically controlled drive motor, cooling device, fuel tank, and liquid level sensor. This invention adopts a range-extended hybrid mode that uses fuel to generate electricity and the motor for drive. When the battery is low, it continuously charges the battery or directly powers the electronically controlled drive motor. Energy can be quickly replenished by refueling, effectively solving the problems of short range and inconvenient charging of pure electric motorboats. It combines the advantages of low noise and zero emissions of pure electric drive with the long range of fuel power.

The present disclosure relates to a marine propulsion unit, comprising at least one motor for rotating a pitchable propeller around an axis, the pitchable propeller being connected with a first shaft and a second shaft, the first shaft being rotated by a first power way and the second shaft being rotated by a second power way, wherein the first power way and the second power way are controllable independently of each other so that a first rotation speed (rpm) of the first shaft and a second rotation speed (rpm) of the second shaft can vary in relation to each other, wherein a coupling is arranged between the first shaft, the second shaft and the pitchable propeller for changing a pitch angle of the pitchable propeller when the first rotation speed and / or second rotation speed vary in relation to the other.

The invention discloses a method for testing and analyzing hybrid driving performance of an LNG dual-fuel power one-driving-two trailing suction dredger. The method comprises the following steps: preparing before testing; setting a plurality of types of test conditions in combination with the operation process of the trailing suction dredger; setting a power supply mode of the trailing suction dredger; the performance of the trailing suction dredger is tested in a fuel oil mode and a fuel gas mode of the trailing suction dredger; calculating fuel consumption per unit voyage and fuel consumption per unit power in the fuel oil mode and the fuel gas mode, and drawing a corresponding energy consumption curve; and determining an optimal working condition setting scheme of the trailing suction hopper dredger based on the unit voyage fuel consumption, the unit power fuel consumption and the corresponding energy consumption curve. According to the method, the operation process of the trailing suction dredger is combined, all possible operation working conditions are considered, testing is carried out under the fuel oil mode and the fuel gas mode, performance indexes of the trailing suction dredger under different actual working conditions are evaluated, and a quantitative basis can be provided for design optimization and scheduling strategy formulation of the LNG power engineering ship.

The invention provides a cylindrical permanent magnet linear wave power generation system for a hybrid power system of an extended-range unmanned ship, and belongs to the technical field of wave power generation-energy storage. A generator comprises a straight shaft, a rotor iron core, a permanent magnet, a stator iron core and an armature winding; the straight shaft, the rotor iron core and the permanent magnet form a rotor part of the motor, the stator iron core and the armature winding form a stator part of the motor, and the rotor and the stator are separated by an air gap; the rotor iron core is distributed on the straight shaft, the stator iron core adopts an auxiliary tooth structure at the stator end part, and the armature winding adopts a single-layer fractional slot winding mode and is wound in armature teeth of the stator iron core. The flywheel energy storage system and the battery energy storage system form a hybrid power system, the advantages of the flywheel energy storage system and the battery energy storage system are fully played, the application requirements under different working conditions are met, and the cruising ability of the unmanned ship and the load electricity utilization reliability and stability can be effectively improved by combining the flywheel energy storage system and the battery energy storage system.

A hybrid power module for ship propulsion relates to the field of marine power technology. To address the problems of existing ship propulsion modules, which often employ electric motors, traditional heat engines, and parallel gearboxes for propulsion, resulting in large, complex systems with low space utilization and poor operational stability, this invention utilizes a highly integrated parallel reduction gearbox, a flexible coupling, and an electric motor. This achieves high power density and reduces the size by half compared to existing ship propulsion modules, improving hull space utilization. Furthermore, it can directly drive the propeller shaft without external power. With increased power, a diesel engine or gas turbine can be introduced to drive the propeller shaft in parallel with this module. The forward and reverse rotation of the propeller shaft can be achieved by engaging or disengaging forward and reverse clutches. This module enables operation and switching of six different main engine modes, providing high redundancy in the power system and ensuring operational stability. It has a wide range of applications. This invention is applicable to ships.

The embodiment of the utility model provides an extended-range electric ship, and relates to the technical field of electric ships. The extended-range electric ship comprises a ship body and a power module. The ship body comprises a bow, a bearing cabin and a stern which are sequentially arranged in the length direction of the ship body, an outboard outboard engine is arranged at the end, away from the bow, of the stern, the power module is arranged at the stern and comprises a power battery assembly, a fuel storage assembly and a fuel power generation assembly, and the fuel power generation assembly is connected with the fuel storage assembly. The fuel power generation assembly is used for supplying power to the power battery assembly. Under the condition that the power battery assembly has the same battery capacity, the fuel storage assembly and the fuel power generation assembly can improve the cruising ability of ship driving. The power modules are all arranged at the stern, the integration level of the power modules is improved, and when the fuel power generation assembly charges the power battery assembly, a short conveying cable can be arranged, so that the loss of electric quantity during charging is reduced, and the cruising ability of the ship during running is further improved.