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530 results about "Energy transformation" patented technology

Energy transformation, also known as energy conversion, is the process of changing energy from one form to another. In physics, energy is a quantity that provides the capacity to perform work (e.g. lifting an object) or provides heat. In addition to being convertible, according to the law of conservation of energy, energy is transferable to a different location or object, but it cannot be created or destroyed.

Construction method of hydrogen turbulent combustion thickened flame surface model

The invention provides a method for constructing a thickened flame surface model of hydrogen turbulent combustion, which belongs to the technical field of hydrogen fuel engines, and specifically comprises the following steps: modeling a diffusion enhancement effect and a flame surface wrinkle effect caused by multi-scale turbulent flow by constructing a hydrogen fuel turbulent flame speed scale rate under a wide working condition; and the combustion process of the hydrogen fuel can be described more accurately. In addition, on the basis of a thin reaction zone combustion mode, key physical quantities are extracted, a combustion efficiency function is optimized, multi-scale turbulence and a difference diffusion effect are considered, and the thickened flame surface model is further perfected. The development of the method provides powerful technical support for the forward design of the hydrogen fuel engine based on numerical simulation, promotes the engineering application of the hydrogen fuel engine, and assists the hydrogen fuel engine to play a greater role in efficient, clean and safe energy transformation.
Owner:TAIHANG NATIONAL LABORATORY

Wide-temperature-range active temperature control lithium battery energy storage system

The invention relates to the technical field of electrochemical energy storage, in particular to a wide-temperature-range active temperature control lithium battery energy storage system which comprises a lithium battery energy storage unit, an active temperature control unit, a battery management unit and an energy conversion system unit. According to the invention, through AI prediction and multi-source cooperative precise temperature control, distributed micro-domain regulation and energy recovery technologies, and in combination with multi-physical field perception, deep learning state evaluation, cloud digital twinborn optimization and graded safety early warning, dynamic adaptation and precise control of the working temperature of the lithium battery in a wide temperature range environment are realized; the battery state evaluation precision and the safe operation reliability are improved, the system energy consumption is reduced, and the service life of the battery is prolonged.
Owner:JIANGSU JINYUAN NEW ENERGY TECH CO LTD

Reactor waste heat export, recovery and comprehensive utilization system and method based on heat pipe

PendingCN121306614AEnergy production using thermoelectric elementsCooling arrangementNuclear reactorPower efficient
The invention relates to the technical field of nuclear reactor safety, and particularly discloses a reactor waste heat export, recovery and comprehensive utilization system and method based on a heat pipe, and the system comprises a nuclear energy generation system, a secondary loop energy conversion system, a primary loop waste heat discharge system, a secondary loop waste heat discharge system, and a waste heat recovery and comprehensive utilization system. According to the waste heat recycling system, the heat pipe can be used for heat transfer and storage under the peak regulation operation condition, the nuclear heat use efficiency is remarkably improved, the requirements of various types of energy sources such as electricity and heat are met, and passive export of reactor core waste heat can be achieved through multi-natural-circulation coupling cooperative operation under the condition of a whole-field outage accident. By means of the efficient heat transfer characteristic and the modularization characteristic of the heat pipes, independent operation of the heat pipes can be achieved, the problem of single-point failure of the system can be avoided, meanwhile, separation of a reactor coolant and a cooling medium of a waste heat removal system can be achieved, the inherent safety of a nuclear reactor is remarkably improved, and the requirements of multi-purpose scenes are met; and the purpose of fully utilizing resources is achieved.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

Wind power generation and gravity energy storage combined power supply system and power supply method

The invention discloses a wind power generation and gravity energy storage combined power supply system and method, and the system comprises a wind power generation unit, a gravity energy storage unit and an intelligent control unit. The gravity energy storage unit is dynamically controlled to store or release energy according to the difference value between the wind power generation real-time power and the threshold value, so that the combined output power is stable. The gravity energy storage unit adopts a symmetrical double-slope supporting tower and double-energy-storage structural design, and bidirectional conversion between electric energy and gravitational potential energy is achieved through a clutch mechanism. And the intelligent control unit dynamically adjusts the floating threshold by combining the predicted wind speed and the historical power fluctuation rate, so that the adaptability of the system to different wind fields is improved. The intermittent problem of wind power generation is solved through cooperative control of power generation and energy storage, the fluctuation amplitude of output power is reduced, peak clipping and valley filling can be achieved through a two-way energy conversion mechanism, energy release and power supply are achieved in the power demand peak period, energy storage is achieved in the valley period, the overall energy efficiency of a power grid is improved, and waste of energy in the power generation peak period is avoided.
Owner:BEIJING YINGDONG DATA TECH CO LTD

Waste heat recovery strategy analysis method and related equipment

The invention discloses a waste heat recovery strategy analysis method and related equipment, and the method comprises the steps: firstly obtaining the flow and inlet temperature of each waste heat medium, and calculating the theoretical waste heat recovery power hour by hour in combination with environmental parameters and discharge temperature limitation; an energy conversion model is established based on the power and the equipment performance parameters, and a cascade framework is constructed according to the waste heat grade; and finally, by taking system energy efficiency maximization as a target, establishing an optimization model containing multiple types of constraints for solution, and obtaining an optimal equipment configuration and operation strategy. According to the cascade structure, efficient matching of waste heat and equipment is achieved, and recycling waste caused by mismatching is avoided; variable heat utilization requirements can be dynamically responded through hourly calculation and load constraint, and accurate space-time matching of waste heat and the requirements is achieved; the multi-constraint model enhances the multi-target optimization capability and makes up for the optimization deficiency in the prior art; the system planning process solves the problem of systematicness shortage of an existing method, the waste heat potential is effectively excavated, and the efficiency of the waste heat utilization comprehensive energy system is improved.
Owner:ANNING BUREAU OF ULTRA HIGH VOLTAGE TRANSMISSION

Multi-element energy storage system anti-disturbance cooperative control method and system and medium

The invention discloses a multi-element energy storage system anti-disturbance cooperative control method and system and a medium, and the method comprises the steps: obtaining the real-time operation data of a multi-element energy storage system which comprises an energy conversion and storage device, the energy conversion and storage device comprises an electric energy-heat energy conversion device, an electric energy-hydrogen energy conversion device, an electric energy storage device, a heat energy storage device, a hydrogen energy storage device and a superconducting magnetic energy storage device; constructing a multi-energy complementary comprehensive energy system model containing a minimum total operation cost objective function based on the real-time operation data; solving the multi-energy complementary comprehensive energy system model, and generating an anti-disturbance cooperative control strategy; and the charging and discharging instruction is controlled to be sent to the multi-element energy storage system based on the anti-disturbance cooperative control strategy to control cooperative operation of the multi-element energy storage system, so that real-time power balance of the multi-element energy storage system is realized, new energy output fluctuation and user load sudden change can be quickly responded, and the operation stability and anti-risk capability of the multi-element energy storage system are improved.
Owner:STATE GRID GANSU ELECTRIC POWER CO JIUQUAN POWER SUPPLY CO

Direct current energy storage control system of distributed sodium ion battery

The invention is suitable for the technical field of energy storage control, and provides a direct current energy storage control system of a distributed sodium ion battery, which comprises a distributed energy storage unit, a direct current bus network, an intelligent monitoring unit and an energy management unit, the distributed energy storage unit is connected with the direct current bus network; the intelligent monitoring unit is connected with the sodium ion battery module in the distributed energy storage unit, and transmits monitored data to the energy management unit through the CAN communication module; the energy management unit is connected with the non-isolated bidirectional DC converter in the distributed energy storage unit, performs fault analysis based on the received parameters, generates a duty ratio adjustment instruction, and dynamically adjusts the duty ratio of the non-isolated bidirectional DC converter according to the duty ratio adjustment instruction. And the bus voltage of the direct-current bus network is adaptively adjusted within the preset range. According to the method, the loss in the energy conversion process is reduced, and the energy utilization efficiency is improved by flexibly configuring the energy storage capacity in a direct-current load scene.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD

Wind-solar-storage integrated direct-current micro-grid device and control method

The invention discloses a wind-solar-storage integrated direct-current micro-grid device and a control method, and relates to the technical field of rural distributed energy. The device comprises a perovskite photovoltaic module array, a vertical axis fan set, a lithium iron phosphate energy storage module, a direct-current power distribution unit, an intelligent control module and a household direct-current terminal, each energy unit and a load are directly connected through a direct current bus, AC / DC conversion loss is reduced, the intelligent control module dynamically adjusts a wind-solar-storage cooperative operation strategy based on illumination, wind speed and electrical load data, and the functions of five-hour stable off-grid power supply and peak-valley arbitrage are achieved. The method adapts to a rural farm house roof resource concentration scene, solves the problems of high loss and poor off-grid stability of a traditional alternating current micro-grid, remarkably improves the energy utilization efficiency, reduces the electricity utilization cost of farmers, and can be widely applied to energy transformation projects in rural areas such as coastal areas.
Owner:林桂枝

Temperature control power generation device, seat and vehicle

The invention relates to a temperature control power generation device, a seat and a vehicle, and the temperature control power generation device is used for being connected with an external power supply and comprises an energy storage device, an energy conversion assembly and a mode switching device. The energy storage device is used for storing and releasing energy, and the energy conversion assembly is connected with the energy storage device and an external power supply. The mode switching device is connected with the energy conversion assembly, the energy storage device and an external power supply, and the mode switching device is used for conducting the energy conversion assembly and the energy storage device, so that the energy conversion assembly converts heat energy into electric energy and charges the energy storage device. Or the mode switching device is used for conducting the energy conversion assembly and the external power supply, so that the energy conversion assembly absorbs heat or releases heat based on the electric energy provided by the external power supply. According to the temperature control power generation device, the mode switching device is utilized, so that the temperature control power generation device can achieve the temperature control effect, energy recycling can be achieved, heat energy is converted into electric energy, the energy storage device is charged, and energy waste is reduced.
Owner:BYD CO LTD

Multi-heat-source combined energy storage and auxiliary heating system and method of nuclear fusion device

The invention provides a multi-heat-source combined energy storage and auxiliary heating system and method for a nuclear fusion device, and belongs to the field of energy conversion and utilization of the nuclear fusion device, and the system comprises a high-temperature heat source storage and supply system which is used for receiving and storing heat of a cladding and a multiplication region coolant, and continuously outputting a high-temperature heat source during the operation and pause of a fusion reactor; the medium-temperature heat source and auxiliary supply system is used for receiving the heat of the divertor coolant and supplementing and outputting the medium-temperature heat source through a medium-temperature auxiliary heater during the suspension period of the fusion reactor; the low-temperature heat source and auxiliary supply system is used for receiving heat of the vacuum chamber coolant and supplementing and outputting a low-temperature heat source through a low-temperature auxiliary heater during the suspension period of the fusion reactor; the high-temperature heat source storage and supply system, the medium-temperature heat source and auxiliary supply system and the low-temperature heat source and auxiliary supply system operate independently. According to the invention, high-temperature heat, medium-temperature heat and low-temperature heat are simultaneously, continuously and stably supplied to the outside during operation and pause of the fusion reactor.
Owner:聚变新能(安徽)有限公司

Control method, device and system of T-connection direct-current transformer and storage medium

The invention relates to a T-connection direct current transformer control method, device and system, a computer readable storage medium and a computer program product. The T-connection direct-current transformer comprises n-phase direct-current conversion modules, and n is larger than or equal to 4. Each phase of DC conversion module comprises a bridge arm formed by connecting a plurality of energy conversion sub-module cascade structures and an electric reactor in series, and two groups of switches, and a common connection end of the two groups of switches connected in series is connected with a first end of the bridge arm; the external connection end of the DC conversion module is used for connecting the high-voltage end, the low-voltage end and the grounding end, and comprises a first end, a second end, a common connection end and a second end of the bridge arm after the two groups of switches are connected in series. The method comprises the following steps: receiving a commutation instruction; in the commutation period, the conduction state of the switch is switched, so that at least an i-phase direct current conversion module is conducted with the low-voltage end at the same moment; 2 < = i < = n-2. By adopting the method, the magnitude of the current which needs to be tolerated by each device can be reduced, so that the T-connection type direct-current transformer meets the requirement of high-capacity application.
Owner:THREE GORGES (BEIJING) RENEWABLE ENERGY RES INST CO LTD +1

Space radiation energy collection and conversion system

The invention discloses a space radiant energy collection and conversion system, which relates to the technical field of energy conversion, and comprises a motor, a main shaft, a steam turbine, an expansion machine and a synchronous generator, a clutch I and a clutch II are respectively mounted on the main shaft on the right side of the motor and the left side of the steam turbine; and a transmission I, a transmission II and a transmission III are sequentially mounted on the main shaft between the clutch I and the clutch II. According to the space radiant energy collection and conversion system, energy sources are infinite, and radiant energy in air and water is utilized and is an inexhaustible energy source; the cost is extremely low: the cost of generating one kilowatt-hour can be reduced to one minute; the system does not depend on fossil fuel, and pollution of exhaust emission to the nature is avoided.
Owner:彭海明

Dynamic energy-carbon coupling modeling and collaborative optimization method for wind and light storage and charging system

The invention relates to the technical field of energy internet and intelligent micro-grids, and discloses a dynamic energy-carbon coupling modeling and collaborative optimization method for a wind and light storage and charging system, which comprises the following steps of: a, acquiring operation data of the wind and light storage and charging system; b, calculating to obtain the equipment-level dynamic real-time carbon potential of the output port of the energy conversion equipment; step c, updating the virtual total carbon load by using the state data of the energy storage unit and the real-time carbon potential; step d, constructing and solving a rolling horizon optimization problem to obtain an optimal control strategy covering the prediction horizon; and step e, issuing and executing a control instruction, and repeating the step a to the step e. According to the method, the physical working condition and the real efficiency of the equipment are dynamically mapped, the carbon emission intensity and the equipment operation state are associated in real time, and then static emission factors are replaced, so that the influence of the equipment on the carbon flow is accurately and dynamically reflected, and the precision and the real-time performance of microscopic carbon accounting are improved.
Owner:JIANGSU ANENGJIA ENERGY TECHNOLOGY CO LTD

New energy facility intelligent operation and maintenance and adaptive control method

The invention discloses an intelligent operation and maintenance and adaptive control method for new energy facilities, and the method achieves the collaborative optimization scheduling of multi-source equipment, reduces the start-stop frequency of a conventional generator set, and improves the charging and discharging efficiency of an energy storage system. An equipment health monitoring mechanism reduces the risk of sudden failures, and a self-adaptive control strategy enhances the stability of the system under external disturbance. Wind and light power generation prediction and real-time scheduling are combined, the utilization rate of renewable energy sources is improved, meanwhile, the overall operation cost is reduced through data-driven fine control, fine control over the charging and discharging process of the energy storage equipment is achieved, the system power adjustment requirement and the battery health protection requirement are effectively balanced, and the system reliability is improved. Energy conversion in a low-efficiency period is avoided in charge and discharge opportunity selection, efficiency loss caused by a battery polarization effect is reduced in charge and discharge rate control, and meanwhile, the risks of over-charge, over-discharge and overheating of the battery are reduced through a real-time monitoring and dynamic adjustment mechanism.
Owner:POWER CHINA KUNMING ENG CORP LTD

Self-energized acceleration sensor system based on wind-induced vibration plectrum

The invention relates to a self-energized acceleration sensor system based on a wind-induced vibration pick, and the system comprises a wind-induced vibration energy collection module which is used for collecting wind energy, converting the wind energy into vibration energy, and transmitting the vibration energy to an energy conversion and storage module; the energy conversion and storage module is used for realizing energy conversion and storage through piezoelectric-electromagnetic-triboelectric hybrid conversion and self-adaptive impedance matching based on vibration energy; the multi-parameter sensing module is used for monitoring acceleration, wind speed and tower body deformation based on the electric energy provided by the energy conversion and storage module; and the control management module is used for managing the wind-induced vibration energy acquisition module and the energy conversion and storage module according to monitoring data of the multi-parameter sensing module. The system can make full use of low-medium speed wind power resources in the northeast region, solves the power supply problem of a traditional sensor, improves the monitoring precision and environmental adaptability, and is suitable for long-term monitoring of complex environments such as power transmission towers.
Owner:SIPING POWER SUPPLY COMPANY OF STATE GRID JILINSHENG ELECTRIC POWER SUPPLY

Air volume control method for multiple air blowers connected in parallel

The invention relates to the technical field of non-variable-capacity pump set parallel control, and discloses a multi-blower parallel air volume control method, which comprises the following steps of: acquiring the real-time rotating speed and the real-time input power of a driving frequency converter of each single blower in a parallel system, and superposing a periodic rotating speed perturbation signal at a common pressure given value to obtain a multi-blower parallel air volume control result; power response amplitudes of all single blowers are extracted synchronously, the change rate of real-time power relative to the rotating speed is calculated to generate a power response gradient representing the energy conversion characteristic of the unit, the unbalanced blowers are recognized according to deviation parameters of the power response gradient relative to the global average value, the rotating speed instruction gain of the blowers is reduced, and the unit energy conversion characteristic is obtained. According to the method, load distribution is converted into an active adjustment mechanism based on the physical characteristics of the impeller, accurate identification of the offset of the physical operation sites of the parallel unit is achieved, and the accuracy of the offset of the physical operation sites of the parallel unit is improved on the premise that branch flow sensing hardware is not needed. And the recessive surge risk caused by single-machine performance discretization is inhibited.
Owner:贵州中航华强科技有限公司

Wind turbine generator performance anomaly detection method and system

The invention provides a wind turbine generator performance anomaly detection method and system, and the method comprises the steps: collecting an operation state data set of a wind turbine generator in a continuous operation period, constructing a dynamic energy topological graph which reflects the energy conversion and transmission process of the wind turbine generator based on the operation state data set, and mapping the operation state data set to the dynamic energy topological graph, analyzing and extracting an energy flow feature vector representing the transfer characteristic of energy between the components through a topological structure; calling a pre-constructed historical health state energy flow model to perform dynamic matching processing on the energy flow feature vector, and calculating an energy flow deviation degree between a current energy flow mode and a historical health mode; and according to the energy flow deviation degree and the wind speed environment parameters collected in real time, optimizing an anomaly judgment threshold value, and outputting a wind turbine generator performance anomaly detection result based on the optimized anomaly judgment threshold value. According to the method, the performance anomaly detection of the wind turbine generator can be more accurately and reliably realized.
Owner:DATANG RENEWABLE ENERGY RES INST CO LTD

Communication lightweight multi-micro energy network cooperative control method for large model assisted reward recovery

The invention belongs to the technical field of multi-micro-energy-network cooperative control, and particularly relates to a communication lightweight multi-micro-energy-network cooperative control method for reward recovery assisted by a large model, and the method comprises the following steps: S1, constructing a mathematical model of distributed energy in a micro-energy network, and enabling the mathematical model to be used for describing the dynamic behaviors of energy conversion, storage and constraint; s2, modeling a micro energy network cooperative control problem as a partially observable Markov decision process POMDP; s3, solving the POMDP of the step S2 by using an optimized MAPPO method to obtain a cooperative control scheme; and issuing to each micro-energy network terminal for execution. The method can break through the limitation of the communication bottleneck on the premise of ensuring the learning quality of the control strategy.
Owner:CHONGQING UNIV

Method for efficiently generating high-brightness gamma radiation

The invention discloses a method for efficiently generating high-brightness gamma radiation, and belongs to the technical field of radiation. A relativistic electron beam is injected into the porous microstructure foam target material, and high-brightness gamma ray radiation is generated. According to the method, the used device is simple, only the single relativistic electron beam and the porous microstructure foam target material are needed to interact, compared with a traditional uniform-density solid material, the energy conversion efficiency in the interaction process of the electron beam and a substance can be remarkably improved, and the energy conversion efficiency can be remarkably improved through the effective constraint effect of a high-intensity magnetic field. And the problems of low energy conversion rate, low light source brightness, poor radiation directivity, complex device or difficulty in experiment implementation and the like of the existing high-energy gamma ray radiation source are solved.
Owner:SHENZHEN TECH UNIV

Combined low-frequency vibration energy collector

The invention relates to the technical field of energy collection systems, and discloses a combined low-frequency vibration energy collector which comprises a lower-layer structure and an upper-layer structure which are combined to form an upper-layer and lower-layer coupled structure. The lower layer structure is an arc-shaped flexible beam, and the arc-shaped flexible beam is used for collecting piezoelectric energy generated by bending deformation; the upper layer structure is a T-shaped cantilever beam, the T-shaped cantilever beam is used for responding to bending modes in different directions and realizing multi-point energy collection, and the energy collection efficiency is improved by introducing mass load to regulate and control structural dynamic behaviors; the first end of the arc-shaped flexible beam is used for being fixed to the edge of a base to conduct energy conversion, the second end of the arc-shaped flexible beam supports the upper layer structure through the first mass block and is combined to form an integrally-connected composite vibration system used for transmitting inertial response, and the first mass block is used for adjusting the inherent frequency to be matched with a low-frequency vibration source.
Owner:TIANJIN INST OF ADVANCED TECH +2

Hybrid game-based integrated energy system multi-agent operation scheduling method and system

The invention discloses an integrated energy system multi-body operation scheduling method and system based on a mixed game, and the method comprises the steps: building a multi-energy cooperation system architecture based on the characteristics and energy conversion relation of each energy body in an integrated energy system, and building each energy body model; based on each energy main body model, designing a three-layer mixed game model which comprises an upper-layer master-slave game model, a middle-layer cooperative game model and a lower-layer non-cooperative game model; the three-layer mixed game model forms closed-loop linkage through information interaction between layers; and solving the three-layer mixed game model, performing benefit distribution and settlement on each energy main body based on a solving result, and realizing operation scheduling of each energy main body. According to the method, the problem that a traditional single game framework cannot cover multi-level requirements is effectively solved, and the multi-agent collaboration efficiency and the market activeness are remarkably improved.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

Water tank of splitting solar water heater

InactiveCN101294748AEfficient use ofReduce heat transfer medium capacityFluid heatersSolar heat devicesSolar waterConfined water
The invention discloses a divided water tank device for an internal heat exchanger of a split type solar water heater. Butt welding is carried out by utilizing an end enclosure of a stainless steel confined water bank inner bag; the end enclosure is used as the heat exchanger to play the role of a water tank partition board; the water tank is divided into independent divided cavities; the heat exchanger is sealed with the inner bag of the water tank; the adjacent cavity bodies communicate with each other via draught tubes; the medium circulation and the medium supplement, namely unconfined running of the heat exchanging part, are carried out safely and reliably via an upper circulating pipe and a heat collecting part; and the device can fully improve heat energy transformation and reduce heat loss.
Owner:江苏元升太阳能集团有限公司

Magnetic-mechanical-electric coupling amplitude-change pole simulation method based on finite element analysis

The invention discloses a magnetic-mechanical-electric coupling amplitude-change pole simulation method based on finite element analysis, and relates to the technical field of magnetoelectric antenna simulation. The magnetic-mechanical-electric coupling amplitude-change pole simulation method based on finite element analysis comprises the steps that parametric modeling is carried out, and a multi-physical field environment is imported; defining material attributes; solid mechanics, an electrostatic field and a magnetic field are coupled, and piezoelectric and piezomagnetic effects are started; dividing grids and configuring a solver; executing simulation calculation; and evaluating displacement and stress results and performing iterative optimization. According to the magnetic-mechanical-electric coupling amplitude-change pole simulation method based on finite element analysis, through multi-physics field coupling simulation, electric-mechanical-magnetic energy conversion is accurately simulated, the problem of traditional simulation distortion is solved, a high-performance amplitude-change pole capable of amplifying the amplitude of a permanent magnet sheet to 9 micrometers is guided to be designed, and the radiation capacity and reliability are remarkably improved.
Owner:HONGHE POWER SUPPLY BUREAU OF YUNNAN POWER GRID

Wind turbine assemblies and deployment methods

Wind energy assemblies and deployment methods are provided that include a telescoping mast, an energy conversion system, and a carriage assembly. The telescoping mast has a top and a bottom, a mast roller system, and a plurality of mast sections. At least one of the mast sections is an internal mast section, and at least one of the mast sections is an external mast section. The energy conversion system is mounted to the top of the telescoping mast and includes a steering system, a wind instrument mast, a drive assembly, a rotor hub, a disc brake, and a plurality of blades extending from the rotor hub. The carriage assembly supports the telescoping mast. The mast roller system enables the at least one internal mast section to be pulled out from the at least one external mast section, thereby facilitating extension of the telescoping mast. A hydraulic ram assembly may be provided to rotate the telescoping mast to a vertical position.
Owner:UPRISE ENERGY LLC

High-frequency high-voltage power supply system

The invention discloses a high-frequency high-voltage power supply system, and relates to the technical field of high-frequency high-voltage power supplies. An energy conversion assembly in the high-frequency high-voltage power supply system is used for converting input alternating current into high-voltage electric energy; the energy conversion assembly is arranged in the insulating part, and the insulating part is used for electrically isolating the energy conversion assembly; the detection device is arranged in the insulating part and is adjacent to the energy conversion assembly; the detection device is used for detecting parameters of the energy conversion assembly; the control device is connected with the energy conversion assembly and the detection device, and the control device is configured to regulate and control working parameters of the energy conversion assembly based on at least one of the temperature parameter, the current parameter and the voltage parameter. By applying the high-frequency high-voltage power supply system disclosed by the invention, a closed-loop control system for controlling and adjusting based on the detection result can be constructed, the adjusting capability of the high-frequency high-voltage power supply system is improved, the problems caused by partial discharge or local temperature rise are reduced, the stability of the system is improved, and the service life of the system is prolonged.
Owner:CHINA INSTITUTE OF ATOMIC ENERGY

Virtual power plant low-carbon economic dispatching method considering cooperation of hydrogen energy storage and liquid air energy storage

A virtual power plant low-carbon economic dispatching method considering cooperation of hydrogen energy storage and liquid air energy storage comprises the steps that firstly, a hydrogen energy storage model is established, hydrogen energy serves as extension of the electricity-to-gas technology, and part of natural gas is replaced with the electricity-to-hydrogen and hydrogen gas turbine technology; secondly, establishing a liquid air energy storage (LAES) model, and stabilizing the output fluctuation of the unit by using the high-capacity and long-period electricity storage and discharge capability of the LAES model; and finally, hydrogen energy storage and liquid air energy storage are brought into an overall optimization scheduling framework, an electricity-gas-heat-hydrogen multi-energy complementary virtual power plant (VPP) model is constructed, and an improved mixed grey wolf optimization algorithm is used for solving. According to the invention, various energy conversion and energy storage devices are coupled, and wind power and photovoltaic power can be flexibly scheduled in a cross-time manner and fully utilized through joint optimization scheduling, so that collaborative optimal configuration of internal multi-energy resources is realized, the operation cost of the system is reduced, and carbon emission is reduced.
Owner:CHINA THREE GORGES UNIV

Comprehensive energy system transformation and optimization method based on digital twin body

The invention relates to the technical field of comprehensive energy transformation, in particular to a digital twin-body-based comprehensive energy system transformation optimization method, which comprises the following steps of: constructing a digital twin body comprising a building thermal model and an energy equipment system model on the basis of static data, dynamic operation data and external environment data of a target area; global optimization with a preset objective function as a guide is carried out, an optimal system capacity configuration and architecture scheme is determined, and then local equipment type selection and control strategy optimization are carried out; issuing the optimized control strategy to a physical energy system for execution, and continuously collecting feedback data to calibrate the digital twin to form closed-loop optimization; a sensing-analysis-decision-execution-learning closed-loop system is constructed, an energy system of a physical world is deeply coupled with a digital model of a virtual world, global and local layered collaborative optimization is realized through a digital twin, and dynamic adaptability is improved through closed-loop operation.
Owner:YINGSHENG (SUZHOU) INTEGRATED ENERGY SERVICES CO LTD

Compressed air energy storage power station black start system, method, equipment and medium

The invention relates to the technical field of compressed air energy storage power station black start, in particular to a compressed air energy storage power station black start system, method, equipment and medium, and the compressed air energy storage power station black start system comprises an energy conversion module which is used for converting high-pressure gas energy in a gas storage medium into electric energy; the electric energy distribution module is connected with the output end of the energy conversion module and used for distributing electric energy to the plant load; the power supply switching module is connected with the electric energy distribution module and an external power supply and is used for realizing switching of power supplies; the dynamic adjusting module is connected with the energy conversion module and the electric energy distribution module and used for controlling and maintaining stable operation of the system through gas flow. The method has the beneficial effects that the potential of the high-pressure gas in the gas storage chamber of the energy storage power station and the energy storage equipment is fully utilized, the equipment cooperative starting logic and the rapid operation process of the plant power are optimized, the reliability and efficiency of black start are improved, and the stable supply of the plant power is ensured.
Owner:GUIZHOU POWER GRID CO LTD

Hybrid wave energy harvester

The application discloses a hybrid wave energy collection device, which comprises a spherical shell assembly composed of an upper spherical shell and a lower spherical shell, a wave energy capturing module arranged in the spherical shell assembly and used for capturing multi-directional wave energy and converting the wave energy into mechanical energy, and an energy conversion module used for converting the mechanical energy into electric energy. The wave energy capturing module converts wave motion into relatively straight-line motion and variable-radius swing motion. The wave energy capturing module comprises a moving rod, a top end of which is rotatably connected with an inner wall top end of the upper spherical shell; a support assembly, which comprises an upper support, a lower support and a plurality of connecting supports, a middle part of the upper support is provided with a through hole, a center of the lower support is provided with a mounting hole, and a bottom of the lower support is provided with a connecting rod; a sliding body, which is rotatably connected with the connecting rod, a lower end surface of the sliding body is a spherical surface and is matched with an inner wall of the lower spherical shell; the moving rod passes through the through hole of the upper support of the support assembly and is embedded in the mounting hole of the lower support; and the moving rod is coincident with a central axis of the support assembly. The application has the characteristics of strong working condition adaptability, high recovery efficiency, high power output density, high space position utilization rate and stable electric energy output and can provide power supply for low-power wireless sensors and provide a reliable technical scheme for realizing self-driving of wireless sensing equipment in water areas.
Owner:LIAOCHENG UNIV