267 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 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 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.

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 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 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 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.

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.

To provide an energy conversion device and a safety control method for the same.SOLUTION: An energy conversion device includes a first switch module (10), a motor inverter (20) which has first and second bus terminals respectively connected to first and second terminals of a battery (70), and in which the first switch module (10) controls ON / OFF of the first bus terminal and the first terminal of the battery (70), or controls ON / OFF of the second bus terminal and the second terminal of the battery, or controls ON / OFF of the first bus terminal and the first terminal of the battery (70) and ON / OFF of the second bus terminal and the second terminal of the battery, a motor winding (30) having a first terminal connected to a midpoint terminal of the motor inverter (20), and a second switch module (40) and a first capacitor (50) which are connected in series, and a first terminal and a second terminal of which are connected to a second terminal of the motor winding (30) and the second bus terminal respectively after the series connection is established.SELECTED DRAWING: Figure 1

The embodiment of the present application provides an energy conversion device and a vehicle, the energy conversion device comprises a rectifying module, at least one direct current / direct current (DC / DC) module and a control module, a first end of the rectifying module is connected with a first alternating current end, a second end of the rectifying module is connected with a second alternating current end, a third end of the rectifying module is connected with a first end of the first DC / DC module, a fourth end of the rectifying module is connected with a second end of the first DC / DC module, a third end of the first DC / DC module is connected with a first direct current end, and a fourth end of the first DC / DC module is connected with a second direct current end; in the case that the energy conversion device works in a reverse discharge mode, the control module determines a duty cycle of a switch tube in the first DC / DC module according to a first sampling voltage or a second sampling voltage, and controls conduction or turn-off of a rectifying tube in the rectifying module, so as to realize a direct current / alternating current function of the energy conversion device. The embodiment of the present application can reduce the volume and cost of the energy conversion device.

Provided are a photon up-conversion film, a photon up-conversion body, a laminate, and an energy conversion device, which are capable of high-efficiency up-conversion, and methods of producing the same. The photon up-conversion film according to an embodiment of the present invention includes a color-forming portion containing at least: a sensitizing component capable of absorbing light in a first wavelength region λ1; and a light-emitting component capable of radiating light in a second wavelength region λ2 including wavelengths shorter than those of the first wavelength region λ1. A relaxation time of the photon up-conversion film measured by a spin-echo method through use of time-domain nuclear magnetic resonance (pulse NMR) at 298 K is less than 210 ms.

This invention discloses a long-term self-sustaining energy harvesting device and method with optimized oscillating hydrofoil airfoil profile. The energy harvesting device includes multiple spaced-apart oscillating hydrofoil units arranged in an array. Each oscillating hydrofoil unit includes a hydrofoil shell and a triboelectric nanogenerator. Multiple triboelectric nanogenerators are arranged side-by-side and closely fitted together along the chord length of the airfoil shell. The size of each triboelectric nanogenerator varies with the thickness of the hydrofoil shell, ensuring that the upper and lower arc surfaces of each triboelectric nanogenerator are tangent to the inner wall of the hydrofoil shell. When the oscillating hydrofoil unit pitches or oscillates under the influence of tidal currents, its internal triboelectric nanogenerators capture mechanical energy in real time and generate electricity, replacing the traditional oscillating hydrofoil energy conversion device. This method is simpler in structure, easier to manufacture, lower in cost, and improves energy harvesting efficiency and self-sustainability.

The invention provides a combined heat and power operation method based on supply and demand bilateral collaborative optimization, which relates to the technical field of energy management, and comprises the following steps: decoupling the thermoelectric connection of a combined heat and power system through an energy storage device and a multi-energy conversion device; based on the decoupled cogeneration system, constructing a demand response model; wherein the demand response model comprises an electrical load response and a thermal load response; according to the demand response model, establishing a mathematical model with the purpose of minimizing the sum of the system operation cost and the response compensation cost; wherein equipment operation constraints on the supply and demand sides are introduced into the mathematical model; a mathematical model is converted into mixed integer linear programming, a mathematical modeling tool is used for carrying out model compiling, a commercial solver is called to solve the mathematical model, a combined heat and power operation rule of supply-demand double-side collaborative optimization is obtained, flexible scheduling and efficient energy utilization of a thermoelectric system are achieved, the operation cost is reduced, and the operation efficiency is improved. And the adaptive capacity of the system to renewable energy sources is enhanced.

The application provides a vehicle, an energy conversion device and a charging method thereof. The first switch module and the second switch module are arranged, and the second switch module is arranged between the power battery and the voltage conversion module. When the first switch module is turned on, the power battery, the first switch module, the energy storage module and the external power supply module form a first charging circuit. When the second switch module is turned on, the power battery, the second switch module, the voltage conversion module, the energy storage module and the external power supply module form a second charging circuit. When the high-voltage power supply platform direct-current charging pile is connected, the first charging circuit can be used for direct-current charging, and the charging speed of the power battery is improved. When the low-voltage power supply platform direct-current charging pile is connected, the second charging circuit can be used for step-up charging, and the problem that the power battery cannot be fully charged or cannot be charged by the low-voltage power supply platform direct-current charging pile in the prior art is solved.

The invention discloses an energy conversion structure and a wave energy conversion device, and relates to the technical field of wave energy power generation. The limiting piece is arranged at one end of the guide piece; the damping system is arranged at the other end of the guide piece; the two floating bodies are arranged on the guide piece in a sliding mode, the two floating bodies are connected through an elastic piece, and the floating body close to the damping system is connected with the damping system; and the energy conversion unit is arranged in the floating body, and the energy conversion unit can convert the linear motion of the floating body into electric energy. Compared with an existing single-floating-body structure, the energy conversion device is provided with the two floating bodies, and when the energy conversion device is applied to the wave energy conversion device, the wave energy capturing and converting efficiency of the structure can be effectively improved under the condition of the same space size.

An energy conversion arrangement (10) for an aircraft (1), an energy system (2), and an aircraft (1) comprising an energy conversion arrangement (10) and / or an energy system (2) are provided, wherein the energy conversion arrangement (10) comprises a fuel conversion device (11), in particular a fuel cell system, for converting at least one fuel into electrical and / or mechanical energy; an exhaust gas outlet (13) for discharging exhaust gases (E) generated in the fuel conversion device (11) by the fuel conversion; a further exhaust gas outlet (13) for discharging further exhaust gases (G) from the fuel conversion device (11); and at least one mixing arrangement (42) designed to mix the exhaust gases (E) from the exhaust gas outlet (13) with the further exhaust gases (G) from the further exhaust gas outlet (13).