383 results about "Energy conversion devices" patented technology

The present invention belongs to the technical field of building integrated energy. Disclosed is a virtual energy storage-considered double-layer optimization scheduling method for a building integrated energy system, the method comprising: constructing an energy hub-based low-carbon building integrated energy system containing wind-solar energy storage and energy conversion devices; comprehensively analyzing characteristics of loads of the system to improve the demand response capability thereof; further providing a double-layer optimization model containing an upper-layer energy operator pricing layer and a lower-layer building user optimization layer, building virtual energy storage and building user comfort indicators being considered in said model to improve the system scheduling flexibility so as to construct an overall user satisfaction indicator; and finally, solving the double-layer optimization model to optimize device contributes, demand responses and electricity purchasing and selling plans of the building integrated energy system, so as to obtain an optimal scheduling policy. The present invention can finely regulate and control various loads of the building integrated energy system, thus improving the energy utilization efficiency, alleviating the power supply pressure of the system, and achieving the purposes of energy conservation and emission reduction of buildings.

The present disclosure relates to the technical field of vehicles, and provides a vehicle and an energy conversion device and a control method therefor. The energy conversion device includes a motor controller, a bus capacitor, a first switch module, a motor, and a second switch module. By controlling the first switch module and the second switch module to be turned on / off, a motor driving circuit can be formed by a battery pack, the first switch module, the bus capacitor, the motor controller, and the motor, and a charging and discharging circuit can be formed by the battery pack, the second switch module, the motor, the motor controller, and the bus capacitor.

The invention discloses a porous substrate reinforced anion exchange membrane and a preparation method and application thereof, and relates to the technical field of anion exchange membranes. The porous substrate reinforced anion exchange membrane is prepared by the following steps: uniformly mixing a polyarylene alkylene type cationic polymer solution and a C1-C10 alcohol solvent, then coating two sides of a porous substrate with the mixture, and drying to obtain the porous substrate reinforced anion exchange membrane. And removing the solvent to obtain the product. According to the method, the porous substrate can be well infiltrated by the cationic polymer solution without pre-treating the porous substrate, so that the porous substrate reinforced anion exchange membrane with a sandwich-like structure is obtained. The film has outstanding swelling resistance and excellent mechanical properties, has good electrochemical properties, and has good application prospects in alkaline film energy conversion devices.

The invention discloses a reinforcement learning-based low-carbon building cluster energy management optimization method and system, and relates to the technical field of building cluster comprehensive energy system management, and the method comprises the steps: building a single building environment; the current environment state of single building energy consumption is obtained; outputting actions of energy storage and an energy conversion device according to the current environment state; acquiring an action reward of a single building and an environment state of a next time step; putting a training sample into a buffer area, and maximizing a reward function by using a near-end strategy optimization algorithm; and the comprehensive energy optimization and low-carbon management of the building cluster are converged through a federal reinforcement learning framework. According to the invention, low-carbon management is carried out on a comprehensive energy management system of a single building based on a near-end strategy optimization algorithm. The energy management method can cope with uncertainty caused by environmental changes, and information of any uncertain system parameters and a building thermodynamic model do not need to be known.

The invention discloses a hydrogen energy park planning method and system based on a heuristic algorithm, and relates to the technical field of smart energy management, and the method comprises the steps: constructing a mathematical model of a park comprehensive energy system which is composed of a renewable energy power generation unit, an energy conversion device, a carbon capture and gas power device and a multi-type energy storage unit; based on the mathematical model, with the minimum annual comprehensive cost of the park comprehensive energy system as a target, establishing a cost target function, setting constraint conditions, and formulating an energy management strategy; and according to an energy management strategy, solving according to an improved taboo horse racing optimization algorithm THRO, and planning the hydrogen energy park according to a solving result. According to the invention, not only is the interior of the exterior of the environment realized, but also the maximization of economic benefits is realized.

The invention relates to a controller, a method and a system for energy source selection. Emission management is provided. A controller for vehicle energy source selection is configured to receive an indication of an emission target for a vehicle. The vehicle includes one or more energy conversion devices. The one or more energy conversion devices are configured to generate mechanical motion from the first energy source and the second energy source. The controller is configured to receive an indication of a first emission output corresponding to the first energy source. The controller is configured to receive a second emission output corresponding to the second energy source. The controller is configured to select a first consumption rate for the first energy source and a second consumption rate for the second energy source based on the emission target, the first emission output, and the second emission output.

The invention discloses an energy conversion device, an inversion device and an energy conversion system, and the energy conversion device at least comprises a first transmission interface which comprises a battery connection terminal suitable for being connected to a battery pack; the second transmission interface is arranged to be at least capable of accessing an alternating current power grid; the energy conversion circuit at least can convert the electric energy input by the first transmission interface and then feed the electric energy to the second transmission interface; the controller is at least in communication connection with the first transmission interface and is electrically connected with the energy conversion circuit; wherein the controller is configured to at least control the energy conversion circuit to carry out energy conversion on the energy input by the first transmission interface when the temperature of the battery pack is smaller than or equal to a temperature threshold value, so that the battery pack at least obtains heating heat energy.

The invention relates to the technical field of energy optimization scheduling, in particular to a multi-source microgrid optimization scheduling method and system. The method comprises the following steps: acquiring a mathematical model of each distributed power supply and an energy conversion device of a micro-grid in a to-be-optimized region, and constructing a target function by taking weighted minimization of fuel cost and operation maintenance cost of the micro-grid, pollutant discharge treatment cost of the micro-grid and load control compensation cost of the micro-grid as a target; setting a power balance constraint, an energy storage charge state constraint, a generation power constraint, each distributed power supply output constraint and a ramp rate constraint as constraint conditions, and constructing a day-ahead optimization model; the day-ahead optimization model is solved through the whale-bat algorithm, and the whale-bat algorithm replaces the search stage of the whale algorithm with the improved bat algorithm to solve the day-ahead optimization scheduling strategy. The optimal scheduling strategy obtained by the invention can respond to dynamic changes more quickly while ensuring high precision.

Emissions management is provided. A controller for vehicle energy source selection is configured to receive an indication of an emissions target for a vehicle. The vehicle includes one or more energy conversion devices. The one or more energy conversion devices are configured to generate mechanical movement from a first energy source and a second energy source. The controller is configured to receive an indication of a first emissions output corresponding to the first energy source. The controller is configured to receive a second emissions output corresponding to the second energy source. The controller is configured to select, based on the emissions target, the first emissions output, and the second emissions output, a first consumption rate for the first energy source and a second consumption rate for the second energy source.

The invention discloses a battery equalization control method, controller and system based on reinforcement learning, and belongs to the technical field of battery pack equalization, and the method comprises the steps: deploying a trained equalization strategy model, inputting the SOC state of a battery pack in real time, and enabling the model to output an optimal equalization action, and sending a corresponding switching instruction to an energy conversion device connected with the battery pack according to the optimal equalization action so as to drive the energy conversion device to charge and discharge the batteries in the battery pack until a preset equalization termination condition is met, the equalization strategy model is a reinforcement learning model, the state space of the equalization strategy model is a vector formed by the SOC of each battery in the battery pack, the action space of the equalization strategy model is a vector formed by an instruction for controlling each battery to charge, discharge or stand, and the training reward function of the equalization strategy model is shown in the specification; the action award reflects the single-step operation effect, and the completion award reflects the balance completion efficiency. The invention can provide an intelligent equilibrium training deployment scheme which is adaptive and optimized and takes both efficiency and speed into account.

The invention discloses a hydrogen-powered unmanned aerial vehicle, and belongs to the field of unmanned aerial vehicles, the hydrogen-powered unmanned aerial vehicle comprises a fuselage structure and a power system, the fuselage structure comprises a nacelle fuselage provided with a hydrogen storage bottle, a propeller is installed at the front end of the nacelle fuselage, the power system is installed in the nacelle fuselage, a supporting plate is fixed above the nacelle fuselage, and the two sides of the supporting plate are connected with unmanned aerial vehicle wings; the unmanned aerial vehicle wings are connected with ailerons, the unmanned aerial vehicle wings are connected with the unmanned aerial vehicle empennage through connecting rods, the unmanned aerial vehicle empennage is connected with an elevator and a rudder, and an undercarriage is fixed below the nacelle fuselage. The power system adopts a proton exchange membrane hydrogen fuel cell as an energy conversion device, the fuel cell can efficiently convert hydrogen and oxygen into electric energy and only generate water and heat, the efficiency of the conversion process is far higher than that of a traditional internal combustion engine or a battery, and therefore the cruising ability of the unmanned aerial vehicle is improved, and the unmanned aerial vehicle is reasonable in design, long in service life and low in cost. The energy is saved.

The invention discloses a driving motor thermal management system and a vehicle. The driving motor heat management system comprises a refrigerant pipeline, a condenser, a booster pump, a driving motor and an energy conversion device, wherein the condenser, the booster pump, the driving motor and the energy conversion device are connected through the refrigerant pipeline. A refrigerant outlet of the energy conversion device is connected with a refrigerant inlet of the condenser. A refrigerant in the refrigerant pipeline circularly flows through the condenser, the booster pump, the driving motor and the energy conversion device; a refrigerant in the refrigerant pipeline absorbs heat and is vaporized at the driving motor, the vaporized refrigerant enters the energy conversion device, and the energy conversion device converts energy carried by the refrigerant into electric energy. By the adoption of the scheme, the driving motor can be cooled, normal work of the driving motor is guaranteed, heat generated by the driving motor can be converted into electric energy, energy increase is achieved, the comprehensive efficiency of vehicle lifting driving and heat management is improved, and the endurance mileage of the whole vehicle can be increased.

The invention discloses an oscillating hydrofoil type optimization long-time self-sustaining energy collection device and an energy collection method. The energy collecting device comprises a plurality of oscillating hydrofoil units which are arranged at intervals, and the oscillating hydrofoil units are distributed in an array mode. Each oscillating hydrofoil unit comprises a hydrofoil shell and a friction nano-generator, a plurality of friction nano-generators which are arranged in parallel along the chord length of the hydrofoil chord and cling to each other are arranged in the hydrofoil shell, and the size of each friction nano-generator changes along with the thickness of the hydrofoil shell; and the upper and lower cambered surfaces of each friction nano-generator are tangent to the inner wall of the hydrofoil shell. When the oscillating hydrofoil unit performs pitching or surging under the action of tidal current, the friction nano-generator in the oscillating hydrofoil unit captures mechanical energy in real time and generates power, a traditional oscillating hydrofoil energy conversion device is replaced, the structure is simpler, production is simpler and more convenient, cost is lower, and energy capturing efficiency and self-sustaining performance are improved.

The invention provides an energy conversion device based on buoyancy. The energy conversion device comprises a reservoir, a first rotating wheel, a second rotating wheel, a pulling mechanism and a plurality of buoys. The rotating wheel I is rotatably arranged in the reservoir through a rotating shaft; the center of the rotating wheel II is coaxially connected with the center of the rotating wheel I; each buoy comprises a buoy body with a buoy cavity and a waterproof cloth cover; the longitudinal section of each buoy body is fan-shaped; all the buoy bodies are distributed in one or more than two circular rings; the center of each circular ring is coaxial with the center of the shaft of the rotating wheel I; an air inlet / outlet is formed in the cavity wall of each buoy body; a cover opening is formed in one end of the waterproof cloth cover and covers an opening of a buoy cavity of the buoy body. The other end of the waterproof cloth cover is connected with a pulling mechanism; the pulling mechanism is connected with the second rotating wheel. According to the device, the total capacity of the buoy can be increased, space is fully utilized for water feeding and drainage, and therefore larger buoyancy and energy obtained through buoyancy conversion are obtained, and the energy obtaining efficiency is effectively improved.

An energy conversion device enclosure system and method that, in certain implementations, may include an expandable system for enclosing one or more generators having a first set of mounting members positioned along a support surface, and a second set of mounting members positioned parallel to the first set. Removable enclosure panels may be coupled between the mounting members, with a first panel featuring a fuel access opening and a second panel having an air intake opening with louvers to provide air flow from one side of the energy conversion device enclosure to the other. Telemetry subsystems may be integrated into a third panel, while a fourth panel is substantially perpendicular to the first and second panels. The fourth panel may be removable to facilitate the expansion of the system in response to future increased energy demand.

The utility model discloses an oscillating water column and floater combined high-efficiency wave energy conversion device which is built on a coast or a seawall and can utilize wave energy of the coast more efficiently. The device is characterized by comprising a wave energy collection structure, a wave energy conversion structure and an electric energy collection and transmission structure, the wave energy collecting structure is composed of an oscillation air chamber and an oscillation floater, the wave energy converting structure is composed of a turbine device and a hydraulic device, and the electric energy collecting and transmitting structure is composed of a turbine generator and a solid-solid contact type friction nanometer generator. According to the device, wave energy efficiently captured under the combined action of the oscillation air chamber and the oscillation floater is converted into mechanical energy through the energy conversion device, and then power is generated through the turbine generator, so that energy brought by waves can be more fully utilized, and efficient power generation is achieved.

The invention provides a real-time feedback control method for an arrayed wave energy conversion device, which comprises the following steps of: carrying out numerical modeling and hydrodynamic analysis on the arrayed wave energy conversion device, establishing a time domain motion equation and a space state equation of the arrayed wave energy conversion device, replacing a convolution term of the time domain motion equation with the state-space equation to obtain a motion state of the arrayed wave energy conversion device, and carrying out real-time feedback control on the arrayed wave energy conversion device. According to the method, wave spectrum characteristics and hydrodynamic response characteristics of floaters are combined, hydrodynamic interference among the floaters in an array system is comprehensively considered, a causal mapping relation between floater speed and wave exciting force is constructed, expected floater response speed is calculated, control force is applied to the PTO through a feedback control means, and the wave excitation force is calculated. The device is kept in an approximately optimal resonance state under the action of random waves, so that the speed of each floater is close to the optimal function extraction condition of each wave frequency, and efficient real-time extraction of wave energy is realized.

The present specification relates to an energy conversion device, a speaker, and an audio output device, the energy conversion device including a magnetic circuit system including a magnet assembly and a magnetic flux conducting cover installed to at least partially surround the magnet assembly, and a vibration transmission sheet including a first vibration transmission sheet and a second vibration transmission sheet distributed respectively on both sides of the magnet assembly along the vibration direction of the magnet assembly and elastically supporting the magnet assembly within the magnetic flux conducting cover, the energy conversion device having a resonant peak frequency of less than 300 Hz.

The microgravity anti-oscillation energy conversion device comprises a retainer, a first rack and a second rack which are parallel to each other and are arranged in opposite directions are fixedly mounted on the retainer; the inertia floating block is fixedly provided with a first joint gear and a second joint gear, and the inertia floating block can linearly move relative to the retainer, so that when the inertia floating block and the retainer move relatively, the first joint gear and the first rack are kept meshed, and a rotary motion is generated; the second joint gear is meshed with the second rack, so that a reverse rotation motion is generated; the flywheel is fixedly arranged on the inertia floating block; the first gear transmission system and the second gear transmission system are fixedly arranged on the inertia floating block, and the flywheel is in one-way connection with the first joint gear through the first gear transmission system and in one-way connection with the second joint gear through the second gear transmission system; and the generator is fixedly arranged on the inertia floating block and is always driven by the flywheel in one direction to generate power. According to the device, the wave energy recycling efficiency can be remarkably improved.

The invention relates to an optimized dispatching method for a multi-energy coupling system containing electricity-ammonia conversion, and belongs to the field of optimized dispatching of power system operation. The economic and environment-friendly potential of ammonia energy in a multi-energy coupling system is excavated by carrying out refined modeling on equipment for converting ammonia into electricity, an ammonia fuel cell, ammonia energy storage and the like and considering the thermal power in the ammonia synthesis process. Combining the characteristics of the energy conversion equipment and the energy storage equipment to construct a mathematical model; and constructing an economic dispatching model of the multi-energy coupling system containing electro-ammonia conversion by taking the minimum comprehensive cost as a target. According to the multi-energy coupling system optimal scheduling method based on electro-ammonia conversion, the electro-ammonia conversion efficiency and efficient consumption and diversified utilization of renewable energy sources can be effectively improved.

The preparation method mainly comprises the following steps: dissolving chloroplatinic acid, lanthanum salt and manganese salt in water according to a certain proportion, adding a complexing agent, adjusting the pH value, and carrying out gelation, drying and high-temperature calcination to obtain a perovskite precursor; and treating in a reducing atmosphere, so that platinum atoms are selectively dissolved out from crystal lattices, high-dispersion platinum nanoparticles are formed on the surface, and finally, the composite catalyst with extremely low platinum loading capacity is obtained. According to the method, platinum species are stably anchored through the perovskite carrier, the platinum atom utilization rate and catalytic stability are remarkably improved, excellent electrocatalytic activity and durability are shown in the oxygen reduction reaction, and the method can be widely applied to energy conversion equipment such as zinc-air cells and fuel cells and has important practical application value.

A proton exchange membrane for an energy conversion device, a hydrogen fuel cell stack for a vehicle, and a method for producing a proton exchange membrane. The proton exchange membrane contains a first layer of a perfluorosulfonic acid ionomer. Furthermore, the perfluorosulfonic acid ionomer contains a first additive coated with methoxy nonfluorobutane. The hydrogen fuel cell stack comprises one or more membrane electrode assemblies, each containing a proton exchange membrane.

The invention discloses a method for constructing a carbon hub model containing a high-efficiency energy conversion device, which is used for establishing a carbon hub model containing an energy conversion device with energy production efficiency greater than 1 in an energy station, and the energy production efficiency refers to the ratio of output energy to input energy. According to the flow direction of internal energy of a unit of the energy conversion device with the energy production efficiency larger than 1, carbon emission corresponding to internal loss energy of the high-efficiency energy conversion device is distributed to an energy station; s2, establishing a carbon flow model of all energy conversion devices considering carbon loss in the energy station; s3, under the condition that the high-efficiency energy conversion devices are connected to the energy station, analyzing the relation of carbon emission flow rates in the energy station, solving the carbon flow conversion coefficients of all the energy conversion devices so as to describe the relation of input and output carbon flow rates of all the energy conversion devices, and establishing a carbon hub model of the energy station. According to the method, accurate calculation and responsibility allocation of the carbon emission of the energy station can be realized.

The invention relates to a battery (1) comprising first (2) and second (3) storage members spaced apart from each other by a fixed distance (d') along an axis X, each of the first and second storage members comprising two magnets of inverted polarity along the axis X, at least one of the magnets (13) of the first storage member (2) interacting magnetically with at least one of the magnets (17) of the second storage member (3) in at least one configuration of the battery, and vice versa, the first and second storage members being movable relative to each other between a stable equilibrium configuration, in which the magnetic energy induced by the magnetic interaction between the magnets of the first and second storage members is minimal, and at least one unstable configuration, in which the magnetic energy is greater than the magnetic energy in the stable configuration.

An energy conversion device 100 for an electrolysis system (150) comprises: an adjustable transformer (101) having a primary side (102) connectable to an AC grid (103) via a point of common coupling, a secondary side (104) and a tap switch (105); a rectifier transformer (106, 107) having a primary side (108, 109) configured to provide a secondary side voltage differing by a predetermined phase shift; a thyristor rectifier unit (114, 115, 116, 117) forming a multi-pulse rectifier system (118) that receives the secondary side voltage and provides a DC current to the electrolyser unit (119, 120, 121, 122); and a protection controller unit 133 for connecting / disconnecting the device to / from the power grid as a function of a comparison of the secondary-side voltage to a corresponding secondary-side threshold voltage, where the multi-pulse rectifier system comprises a synchronization control circuit (123, 124, 125, 126) providing thyristor gate pulses at an emission angle synchronized with the secondary-side voltage, and a protection controller unit 133 for connecting / disconnecting the device to / from the power grid as a function of a comparison of the secondary-side voltage to a corresponding secondary-side threshold voltage. And wherein the respective secondary-side threshold voltage is determined from a nominal threshold voltage specified by a grid guideline at the point of common coupling and a physical transformer parameter adjusted according to tap switch position information (129).

A connection system for connecting at least two cables to or from a floating energy converter device is provided, comprising at least two cables, a lower connection structure, and an upper connection structure, at least one longitudinal element joining the lower connection structure and the upper connection structure. The at least two cables run through the lower connection structure and each of the cables are connected to the upper connection structure and each comprises a connectable end at the upper connection structure, wherein the system is non-buoyant, and the at least one longitudinal element is a flexible longitudinal element.

The present invention discloses a Fe-N-C bifunctional catalyst and a preparation method and application thereof. The present invention adopts a synthesis strategy of calcination after a one-pot hydrothermal method, so that dianhydride and diamine are copolymerized with iron compounds while being connected and cyclized by hydrogen bonds, and the electrocatalytic performance and stability of the Fe-N-C oxygen reduction / oxygen evolution reaction bifunctional catalyst are improved by regulating hydrogen bonds. The bifunctional catalyst of the present invention shows excellent oxygen reduction / oxygen evolution reaction electrocatalytic performance under alkaline conditions, and has the advantages of simple preparation method, rich source of raw materials, easy industrial production, low cost, more uniform dispersion of iron elements, etc. Therefore, it has a wide range of application prospects in energy conversion devices such as fuel cells and metal-air batteries.

The invention discloses an energy-saving self-lubricating device and method for an excavator and the excavator. The energy-saving self-lubricating device comprises an oil storage tank, a lubricating pump, an electromagnetic valve, a distributor and an energy conversion device. The oil storage tank is used for containing lubricating grease; an oil inlet of the lubricating pump is communicated with the oil storage tank; a first oil port of the electromagnetic valve is communicated with an oil outlet of the lubricating pump, and a third oil port of the electromagnetic valve is communicated with the oil storage tank; one end of the distributor is communicated with the second oil port of the electromagnetic valve, and the other end of the distributor is communicated with each lubricating point; one end of the energy conversion device is connected with the movable arm, the other end of the energy conversion device is connected to the rotary table, a rotary shaft of the lubricating pump is connected with the energy conversion device, the energy conversion device converts potential energy generated when the movable arm descends into mechanical energy for driving the lubricating pump, lubricating grease is injected into all lubricating point positions, power waste is avoided, and the energy utilization rate is increased. And the device is simple in mechanical structure, low in manufacturing cost, firm and durable, and greatly meets the lubricating requirement of the excavator.

The technical solution of the present application provides a vehicle, an energy conversion device and a control method thereof. The energy conversion device includes a bridge arm converter, a motor winding and an energy storage element. The motor winding, the energy storage element and the battery are connected to form a battery heating circuit. The control method includes: when a battery heating instruction is obtained, the bridge arm converter is controlled at an initial charge and discharge frequency to charge and discharge the battery and the energy storage element so that the battery is self-heated; during the battery heating process, the battery parameters are obtained, the charge and discharge frequency of the battery heating circuit is adjusted according to the battery parameters, and the bridge arm converter is controlled according to the charge and discharge frequency to adjust the current flowing through the battery heating circuit to adjust the heating power of the battery. The present application adjusts the bridge arm converter according to the change of the battery parameters, and at the same time adjusts the charge and discharge frequency of the battery to achieve control of the heating power of the battery, thereby avoiding the problems of low heating efficiency and high noise of the battery during the battery heating process.