340 results about "Energy storage efficiency" patented technology

The invention discloses a circulating type gravity energy storage transportation system which comprises a master controller, an annular rail, a high-position storage yard and a low-position storage yard, a transportation train is composed of a plurality of carriages which are flexibly connected and arranged on the annular rail, a low-position running rail is arranged on the annular rail, the high-position running rail is provided with a linear loading and unloading section, and the low-position running rail is provided with a linear loading and unloading section. A plurality of grabbing parts are arranged on the high-position storage yard and the low-position storage yard and move back and forth between the loading and unloading section and the stacking area, and the hoisting device is electrically connected with the master controller. By means of the double-circulation design of train circulation operation and heavy block rapid loading and unloading, the core pain points that an existing gravity energy storage system is not coherent in operation and low in efficiency are effectively solved, and the energy storage efficiency is improved. And a reliable system solution is provided for realizing large-scale, high-efficiency and fast-response gravity energy storage commercialized application.

The invention discloses an optical storage layered collaborative optimization control method coupling photovoltaic priority absorption and time-of-use electricity price, and relates to the technical field of new energy power system optimization control. The method comprises the following steps: taking a photovoltaic generating capacity prediction value, a load electricity consumption prediction value and peak and valley electricity price information as input data; carrying out rolling optimization by utilizing a model prediction control framework, and generating a light storage plan table; and calculating a photovoltaic output regulation value and energy storage charging and discharging power based on the generated light storage plan table in combination with the photovoltaic power generation power and the load power consumption power which are acquired in real time, executing corresponding energy storage charging and discharging and photovoltaic output processing by applying a decision tree control mechanism, and optimizing light storage control according to a processing result. According to the method, the photovoltaic preferential consumption strategy is executed, the light abandoning amount is reduced, the photovoltaic consumption rate is improved, the time-of-use electricity price dynamic response mechanism and the energy storage efficiency compensation and light abandoning punishment mechanism are combined, peak-valley arbitrage is maximized, meanwhile, the comprehensive electricity utilization cost is reduced, and the power purchase demand of a power grid is reduced.

The invention discloses an air conditioner energy storage system based on intelligent control and a peak-valley electricity price utilization method, and relates to the technical field of air conditioner control. Comprising an energy storage module, an air conditioner module and an intelligent control module. And the intelligent control module is set to dynamically solve an optimal control sequence through a model prediction control algorithm based on predicted environmental parameters, electricity price information and user requirements in a future time period by taking the lowest operation cost as a target, and to control the start, stop and power of the valve, the refrigeration host and the associated water pump, so that the optimal control sequence is obtained. Therefore, the system preferentially charges the energy storage module in the electricity price valley section and preferentially utilizes the energy storage module to supply energy in the electricity price peak section, the load can be accurately predicted, the energy storage state can be sensed in real time, the air conditioner host and the energy storage device can be dynamically and intelligently coordinated in the whole operation period based on a multi-target optimization algorithm, and the energy storage efficiency is improved. Therefore, the peak-valley price difference is utilized to the maximum extent on the premise of ensuring the comfort of the user.

The invention relates to a pumped storage and compressed air energy storage coupled scheduling method, which comprises the following steps of: establishing a multi-stage data system based on input data of multiple time scales; constructing a multi-time scale scheduling model; when the load of the pumped storage mixed compressed air energy storage power station is lower than a first preset threshold value, electricity is abandoned preferentially, water pumping and compression are conducted, and when the load is larger than a second preset threshold value, the pumped storage mixed compressed air energy storage power station is controlled to conduct combined energy release. The nonlinear relation between the pumped storage efficiency and the water level and the nonlinear relation between the compressed air energy storage power and the pressure are converted into linear constraints, solving is conducted by dividing the water level interval and the pressure level, and a scheduling strategy is obtained. Therefore, the problems of relatively low energy storage efficiency, insufficient scheduling refinement, relatively high system standby cost and the like caused by the problems that pumped storage water scheduling and CAES energy management are separated, a standby capacity coordination mechanism is lacked and the like in a hybrid system scheduling method in related technologies are solved.

The invention discloses an energy storage monitoring method and system, electronic equipment and a storage medium, and relates to the technical field of energy storage. The method comprises the following steps: acquiring voltage data and temperature data of a plurality of different types of battery units; generating a voltage response curve of the corresponding battery unit based on each voltage data, and generating a temperature response curve of the corresponding battery unit based on each temperature data; dividing each battery unit into a plurality of battery packs with different charging and discharging characteristics according to each voltage response curve and each temperature response curve, and calculating the residual electric quantity value of each battery unit in each battery pack; in each battery pack, determining an electric quantity difference value between the battery units in combination with the residual electric quantity value of each battery unit, and taking each battery unit of which the electric quantity difference value is greater than an electric quantity threshold value as a target battery pair; and performing concurrent equalization adjustment on the power parameters of each target battery pair until the electric quantity difference value of each target battery pair is smaller than the electric quantity threshold value. By implementing the technical scheme provided by the invention, the overall energy storage efficiency can be improved.

The invention discloses an aquifer energy storage dynamic pressure regulation and control system and method based on multi-parameter feedback, and relates to the field of pressure regulation and control. Data normalization is ensured through a standardized parameter type set, and high-quality input is provided for a subsequent model; a pressure mapping model trained based on historical data can accurately predict pressure response under an injection-production strategy, and deviation caused by experience dependence is avoided; through partition clustering and mean value calculation, the aquifer with high heterogeneity is converted into a regulation and control unit with uniform characteristics, and the pertinence of an injection-production strategy is remarkably improved; through dynamic adjustment of a pressure interval, the energy storage efficiency reduction caused by an overpressure risk or underpressure is effectively prevented; an introduced physical intervention mechanism breaks through the limitation of pure data optimization, and the hydrogeological condition is directly improved when model adjustment is invalid; the three purposes of stabilizing the pressure of the aquifer, improving the energy storage efficiency and preventing and controlling geological risks are achieved, and scientific support is provided for long-term sustainable energy storage operation.

The invention belongs to the technical field of functional ceramic materials, and provides a lead-free high-entropy relaxor ferroelectric material and a preparation method thereof.The raw materials of the lead-free high-entropy relaxor ferroelectric material comprise ceramic powder and oxide; the chemical general formula of the ceramic powder is (1-x) (Bi < 0.2 > Na < 0.2 > Ba < 0.2 > Sr < 0.2 > Ca < 0.2 >) TiO < 3-x > La (Mg < 1 / 2 > Zr < 1 / 2 >) O3. The ceramic powder is prepared through a high-entropy strategy, a slender ferroelectric hysteresis loop is obtained at the room temperature, the breakdown field strength of the material is obviously improved, meanwhile, high energy storage density and energy storage efficiency are obtained, the energy storage density reaches 13.5 J cm <-3 >, the energy storage efficiency is 94.6%, and the breakdown electric field reaches up to 750 kV cm <-1 >. According to the material design based on the high-entropy strategy, the relaxation characteristic of the material is remarkably improved, the dielectric loss of the ceramic is effectively reduced, and the practical application potential is shown.

The invention provides a heat and cold storage water body system based on a multi-head water distributor and a working method of the heat and cold storage water body system, and belongs to the technical field of water body heat storage. High-temperature water is stably injected into the upper layer of a water body through the suspended water distributor at the top, and low-temperature water is injected through the exposed water distributor at the middle lower part, so that mixing of cold water and hot water is reduced to the greatest extent, and stable temperature stratification is quickly formed and maintained. Therefore, the invalid mixing loss of cold and heat is obviously reduced, and the effective heat storage / cold storage capacity and the heat exchange efficiency of the water storage device are greatly improved. The floating type heat preservation top cover directly covers the water surface, upward evaporation heat dissipation and convection heat dissipation on the water surface are effectively blocked, heat loss of the water body is greatly reduced, the heat preservation performance of the system is excellent, and the energy storage efficiency is high.

The invention discloses an LED energy storage street lamp management method and system combined with Internet of Things perception, relates to the technical field of Internet of Things and intelligent illumination, and solves the problem that it is difficult to use the Internet of Things to monitor, collect and process various data in real time so as to predict maximum brightness demand values of street lamps in different time periods. The influence of shelters on the illumination intensity of the street lamp is difficult to analyze; the battery state and the energy storage efficiency of the LED energy storage street lamp are difficult to evaluate; a charging and discharging control strategy is difficult to generate; the energy consumption under the charge and discharge control instruction is difficult to optimize by using digital twinning, and the optimized charge and discharge control instruction is difficult to execute. Various sensing data are collected and processed through the Internet of Things, the brightness requirement of the street lamp is predicted by using a multiple linear regression model, a dynamic shielding coefficient is analyzed, and the battery state and energy storage efficiency of the LED energy storage street lamp are evaluated, so that an intelligent charging and discharging control strategy and a digital twin model simulation energy consumption optimization strategy are generated; and the energy consumption of the LED energy storage street lamp is reduced.

The invention discloses a control method for a photovoltaic energy storage system, and the method comprises the steps: selecting an operation mode, the operation mode comprises a first mode, and in the first mode, step 1, judging whether the power generation amount of a photovoltaic system is sufficient or not; 2, if the phase change material is sufficient, the photovoltaic system supplies power to the inverter compressor, the operation frequency of the inverter compressor is controlled, the inverter compressor is shut down until the phase change material in the photovoltaic energy storage system reaches the set temperature, and in the process, the battery is charged with surplus electricity; 3, if not, the operation frequency of the inverter compressor is controlled according to the photovoltaic generating capacity at the current moment and the preset temperature condition, and the inverter compressor is shut down until the phase-change material reaches the set temperature; 4, judging whether the photovoltaic generating capacity at the current moment meets the requirement that the inverter compressor operates at the lowest frequency of the standard working condition or not; and 5, if not, power is supplied to the inverter compressor through the battery and the photovoltaic system at the same time, and the inverter compressor is made to operate at the lowest frequency of the standard working condition and shut down until the phase change material reaches the set temperature or the voltage of the battery is lower than the set voltage value. The technical effect that the endurance of the energy storage system can be greatly prolonged while enough energy storage efficiency is guaranteed is achieved.

The invention relates to the technical field of vehicle power systems, in particular to a solid hydrogen storage device containing a low-temperature cold-start hydrogen storage cylinder and a fuel cell collaborative power assembly, and the device comprises a heat flow modulation module, a balance driving module, a release coordination module, a power matching module and a power assembly control module. In the hydrogen storage process, through real-time linkage judgment of the interface temperature difference and the heat flux change, directional feedback of energy in different areas is achieved, the stable hydrogen release condition of the hydrogen storage material is maintained, differentiated distribution is conducted on heating power according to the heat flux density deviation, invalid energy consumption and local energy accumulation are avoided, and the energy storage efficiency is improved. Dynamic balance is constructed between the hydrogen release rate and the phase change medium energy absorption rate, the hydrogen supply process is corrected through filtering estimation, the release flow is more stable and controllable, finally, the hydrogen supply stability and the load requirement are combined in the power output link, dynamic matching of the galvanic pile power and the external working condition is achieved, and the energy efficiency is improved. And the response flexibility and the energy conversion efficiency of the power system are improved.

The invention discloses a multiphase coexisting high-entropy glass ceramic material and a preparation method thereof, and the method comprises the following steps: step 1, uniformly mixing Na2CO3, K2CO3, BaCO3, SrCO3, CaCO3, Bi2O3, TiO2, Nb2O5 and SiO2 to obtain a mixture A; 2, the mixture A is added into a crucible preheated to 1200 DEG C, then the temperature is increased to 1450 DEG C, heat preservation is conducted to enable the mixture A to be completely molten till no bubble is generated, a melt is obtained, then the melt is poured into a mold preheated to 300 DEG C, and a product B is obtained after forming; 3, transferring the product B to an annealing furnace which is heated to 500-600 DEG C in advance, preserving heat, and cooling along with the furnace to obtain a glass sample; and step 4, putting the glass sample into a muffle furnace, heating from room temperature to 850-950 DEG C at a heating rate of 5 DEG C / min, preserving heat, crystallizing the glass sample, and cooling along with the furnace to obtain the multi-phase coexisting high-entropy glass ceramic material. The preparation method is simple in process, and the prepared high-entropy glass ceramic has high breakdown strength and excellent energy storage density and energy storage efficiency.

The invention discloses a compressed air energy storage system utilizing a segmented air inlet type multi-stage axial flow turbine and a control method, the system comprises an air storage unit, a compression unit, an expansion unit, a heat exchange unit and a control unit, a segmented air inlet type axial flow turbine structure is adopted, and multi-stage compression and indirect cooling, air storage, pre-segment reheating and multi-segment expansion are cooperatively operated, so that the energy storage efficiency is improved, and the energy storage efficiency is improved. And efficient storage and controllable release of compressed air under multiple working conditions are achieved. According to the control method, two operation strategies of sequential expansion and segmented expansion are set, the turbine segment to be started can be selected according to the gas storage pressure, inlet air temperature optimization is achieved by adjusting the flow of the heat-conducting medium of each segment in real time, and therefore the system energy efficiency and the operation stability are improved. Through the design of the segmented air inlet type axial flow turbine, the variable working condition adaptability and the energy utilization efficiency of the compressed air energy storage system are improved, the equipment complexity and the investment cost are reduced, and the coupling capacity with renewable energy sources is enhanced.

The electric steam boiler system is characterized in that a water supplementing pipeline is connected with an electrode boiler through a fourth valve, the output of the electrode boiler is connected with a spherical tank through a pipeline and a first valve, and saturated steam directly discharged from the spherical tank is connected with a user side through a pipeline and a tenth valve; and the output of the spherical tank passes through the solid energy storage superheater before being connected with the user side through a pipeline and a third valve. The system is high in energy storage efficiency, long in service life and high in safety, the solid energy storage superheater directly heats saturated steam stored in the spherical tank, simultaneous charging and discharging can be achieved, the electric steam boiler system can rapidly adapt to changes of different heat using scenes and requirements, and the electric steam boiler system can produce both saturated steam and superheated steam.

The invention discloses a strontium-doped bismuth titanate-based ferroelectric film and a preparation method thereof, and belongs to the technical field of dielectric energy storage materials. The chemical composition of the film is Ba < 1-x > Sr < x > Bi < 4 > Ti < 4 > O < 15 >, wherein x ranges from 0.025 to 0.1. The preparation method comprises the following steps: mixing ethylene glycol monomethyl ether and ethylene glycol, adding bismuth nitrate, barium acetate, strontium acetate and butyl titanate, fully stirring and filtering to obtain a precursor solution, aging, dripping to the center of a substrate for spin coating, heating a spin-coated sample to obtain a dry film, and annealing to obtain the ferroelectric film. The method is low in technological condition requirement, and the thin film obtains the optimal energy storage density by changing the doping proportion of Sr. According to the ferroelectric film, when x is equal to 0.075, the leakage current density of Ba0. 925Sr0. 075Bi4Ti4O15 (BBST75) is only 1.59 * 10 <-7 > A / cm < 2 >, the breakdown field strength is as high as 3.22 MV / cm, and at the moment, the film has the energy storage density of 28.2 J / cm < 3 > and the energy storage efficiency of 80.36%.

The invention discloses a distributed energy storage system cooperative control method based on data fusion, and belongs to the field of power system energy storage control. The edge layer performs dimensionality reduction on multi-source data through kernel principal component analysis, the cloud constructs a space-time correlation model by combining a graph neural network with a long-short-term memory network, and data privacy is guaranteed by means of federal learning distributed updating. An upper layer model prediction control framework is combined with an improved whale algorithm to solve multi-target optimization of system economy, energy storage life and power grid stability; the lower-layer power type energy storage adopts self-adaptive droop control, and the energy type energy storage model predicts, controls and quantifies the degradation cost of the battery. When communication is interrupted, the analytic hierarchy process and the consistency algorithm cooperate to disperse power distribution; and when the equipment fails, convolutional neural network diagnosis is combined with alliance chain redundancy switching. Multi-source deep correlation, characteristic differentiation regulation and control and high robustness are realized, the energy storage efficiency is improved, the service life of equipment is prolonged, and the method is suitable for micro-grids, smart grids and other scenes.

The invention discloses a surface scraping type energy storage heat exchanger and a working method thereof, and relates to the technical field of energy accumulators, the surface scraping type energy storage heat exchanger comprises a heat exchanger body and a heat exchanger support, and the heat exchanger body comprises a heat exchanger outer shell, a heat exchanger inner shell, a heat production device, a stirring device, a surface scraping device, a pressurizing device and a protective net; a heat exchange sealed space is formed between the heat exchanger outer shell and the heat exchanger inner shell, a heat transfer working medium inlet and a heat transfer working medium outlet are formed in the heat exchanger outer shell, and a heat conduction medium and a phase change material are contained in the heat exchanger inner shell. The pressurizing device is used for pressing the phase-change material in the solid phase, and the surface scraping device is used for scraping the phase-change material which is attached to the inner wall of the heat exchanger inner shell and becomes the solid phase. The heat transfer efficiency during heat absorption and heat release can be improved, the energy storage efficiency is improved, and the actual use requirement that a heat source is a solid heat flow boundary with a fixed heat load and a fluid temperature boundary with a fixed temperature can be met.

The invention discloses a shared energy storage fine scheduling method considering multi-scene uncertainty and hierarchical decision, and the method comprises the steps: building system power-energy constraint modeling based on a typical scene set; modeling is carried out based on a typical scene set and system power-energy constraint, electricity purchasing and selling, energy storage efficiency and life degradation cost are comprehensively counted in multiple scenes, a multi-target scheduling model is formed, and opportunity constraint is introduced to ensure supply and demand reliability; based on a multi-target scheduling model, constructing a hierarchical decision-making model which takes a shared energy storage operator as a main part and takes a plurality of micro-grids / communities as an auxiliary part, and establishing a coupling constraint and power balance relation of energy storage charging and discharging-energy state-capacity leasing price; an energy storage dynamic rental price, capacity distribution and a time-sharing charging and discharging plan are obtained by adopting distributed iteration solution, and income allocation can be carried out in combination with an improved Shapley mechanism. According to the invention, the optimal decision of consumption improvement, energy consumption cost reduction and multi-agent coordinated operation under the condition of high-proportion access of new energy can be realized.

The invention provides a polymer-based dielectric medium suitable for high temperature and a preparation method thereof. The preparation method comprises the following steps: S1, heating and sintering an aluminum source solution to prepare two-dimensional aluminum oxide; s2, mixing the barium titanate precursor solution, aluminum oxide and a binder, and then performing electrostatic spinning, drying, sintering and grinding to prepare one-dimensional barium titanate / aluminum oxide; s3, two-dimensional aluminum oxide and one-dimensional barium titanate / aluminum oxide are added into the organic solvent respectively, polyimide is added after uniform stirring, stirring continues, and two-dimensional aluminum oxide / PI colloid and one-dimensional barium titanate / aluminum oxide / PI colloid are prepared; and S4, sequentially coating ITO conductive glass with the two-dimensional aluminum oxide / PI colloid, the one-dimensional barium titanate / aluminum oxide / PI colloid and the two-dimensional aluminum oxide / PI colloid, and drying and quenching after coating to obtain the polymer-based dielectric. The polymer-based dielectric medium provided by the invention has good high-temperature stability and excellent energy storage density and energy storage efficiency.

The invention discloses a bismuth ferrite-based ceramic material with low energy consumption and high energy storage and a low-temperature rapid sintering preparation method of the bismuth ferrite-based ceramic material, a flash sintering technology is applied to 0.55 BiFeO3-0. 4SrTiO3-0.05 NaNbO3 (BFST-0. 05NN) ceramic, on one hand, the component of 0.6 BiFeO3-0. 4SrTiO3 is close to a morphotropic phase boundary (MPB) to provide high polarization, and the introduction of NaNbO3 improves the structure disorder and promotes the relaxation behavior, so that the energy storage efficiency is improved; on the other hand, by optimizing the electric field (100-250 V / cm) and the flash sintering time under the fixed current density (40 mA / mm < 2 >), reactive densification can be achieved at the very low temperature and within the ultra-short time, and compared with traditional solid sintering, the furnace temperature is reduced by nearly 500 DEG C; flash sintering can realize densification of the ceramic, inhibit grain growth of the ceramic, refine a grain structure, inhibit volatilization of volatile elements and inhibit leakage conductance current at the same time, the lead-free bismuth ferrite-based ceramic with high breakdown and high energy storage and excellent ferroelectric, piezoelectric and energy storage performance is obtained, and green development and high energy storage are realized at the same time.

The invention relates to an energy storage synergistic air source heat pump system and a control method thereof. The system main loop comprises a compressor, a four-way reversing valve, a first heat exchanger, a second heat exchanger, a third heat exchanger, a first throttling element, a second throttling element and a gas-liquid separator. A first bypass branch (with a first regulating valve) and a second bypass branch (with a second regulating valve) are additionally arranged. And an energy storage module is additionally arranged and exchanges heat with the second heat exchanger through second fluid or is directly integrated in the refrigerant loop. In the heating mode, heat storage / heat removal switching of the energy storage module is achieved through regulation and control of the double throttling elements; a bypass branch regulating valve is used for controlling refrigerant distribution, and non-stop defrosting is completed while heating is maintained; in the refrigeration mode, the double-throttling-element state is switched to enable the second heat exchanger to serve as an evaporator for cold storage, and cold storage capacity is released under the high-temperature working condition to improve the system capacity.

A thermal storage absorption refrigeration unit, including: a thermal storage device and an absorption refrigerating machine; an output end of the thermal storage device is connected to an input end of the absorption refrigerating machine. The excessive wind and solar power, along with electricity from the grid during off-peak hours, are stored in thermal storage device in the form of heat. These thermal storage device are configured to serve as the heat source for the absorption refrigerating machine. The thermal storage device can achieve an energy storage efficiency of 96%, offering advantages over battery storage, compressed air energy storage, and pumped hydro storage in terms of safety, efficiency, energy savings, and low upfront investment.

The invention provides a water-gas coupling energy storage integrated control method and system, and relates to the technical field of water-gas coupling energy storage, and the method comprises the steps: collecting water path operation parameters and gas path operation parameters; constructing a water-gas collaborative operation model; inputting the real-time system state and the power grid demand signal into the water-gas collaborative operation model; according to the power collaborative allocation scheme, generating a target control instruction, and controlling an energy storage system to execute energy storage or release operation; wherein the target control instruction is connected with an execution equipment water pump of the water path and an execution equipment air compressor adjusting valve of the air path, and the target control instruction is executed and used for intelligent control over the flow, the pressure and the valve opening degree of the water and gas execution equipment. The technical problem that the overall energy storage efficiency is not high due to the fact that water pump energy storage and compressed air energy storage lack cooperative scheduling and are independently operated in the prior art is solved, and the water-gas coupling energy storage efficiency is improved through water-gas coupling operation optimization.

The invention discloses an organic micromolecule modified polyethersulfone composite dielectric film and a preparation method and application thereof, and belongs to the technical field of functional polymer composite materials and preparation thereof. The problems that an existing PESU-based dielectric film is insufficient in energy storage density and low in charging and discharging efficiency are solved. According to the PESU-based dielectric film, PMDA is doped in a PESU substrate through a blending process, the stacking and polarization characteristics of polymer chain segments are improved on the molecular level by means of the doping of PMDA, and the charge-discharge efficiency, the energy storage density and the breakdown field strength of the PESU-based dielectric film are remarkably improved while the excellent mechanical property of the PESU substrate is kept. Test results show that the obtained composite film achieves energy density of 8.6 J / cm < 3 > and energy storage efficiency of 67.0% under the field intensity of 560 kV / mm.

The utility model discloses a combined heat storage device utilizing solar photo-thermal conversion and boiler waste heat. The combined heat storage device comprises a water storage tank, a solar heat collection device, a boiler heat collection device and a heat storage water tank. The water storage tank is divided into two branches, the two branches are connected to the solar heat collection device and the boiler heat collection device respectively, and the solar heat collection device and the boiler heat collection device are connected into the hot water storage tank in parallel. The device is arranged to be an energy storage system combining a solar heat collection device and a boiler heat collection device, the water storage tank is divided into two branches to convey cold water into the two heat collection devices, after heat exchange, the two branches are correspondingly combined and input into the heat storage tank to be stored, photo-thermal combination is achieved, heat sources are effectively increased, and the energy storage efficiency is improved.

The invention relates to the technical field of energy storage systems, in particular to an energy storage system power smoothing method and system based on model predictive control. By introducing the adaptive prediction model and combining with the dynamic frequency decomposition module, the power signal can automatically adjust the frequency decomposition threshold according to the dynamic change of the signal, so that the flexibility and precision of frequency decomposition are remarkably improved, and the accuracy of frequency decomposition is improved by automatically adjusting the frequency decomposition threshold on the basis of the dynamic change information. Therefore, the power difference value sequence is decomposed into a plurality of dynamic frequency components, the change trend of each frequency component is predicted, the future power requirement can be estimated more accurately, the charging and discharging strategy of the energy storage equipment is adjusted in real time, it is guaranteed that the energy storage system can provide efficient and accurate power compensation in practical application, and the energy storage efficiency is improved. According to the invention, the parameters of the adaptive prediction model can be corrected in real time, and the continuous smoothing of the power of the energy storage system is realized by continuously optimizing the frequency decomposition precision and the power prediction accuracy.

The invention relates to the technical field of compressed air energy storage, in particular to a thermal power coupling compressed air energy storage system robust scheduling method, device and equipment, and the method comprises the steps: constructing an operation model of each subsystem in a topological structure of the thermal power coupling compressed air energy storage system; a comprehensive operation model of the whole thermal power coupling compressed air energy storage system is established based on the operation model of each subsystem, thermal power resources can be utilized to the maximum extent, the energy storage efficiency is improved, the comprehensive model serves as a thermoelectric system hub, a power flow model on the power grid side and a heat supply network model on the heat supply network side are combined, an optimal scheduling model is established, and the energy storage efficiency is improved. A new energy output fuzzy set is obtained to cope with uncertain factors in actual operation, fuzzy set parameters are set according to actual data of a power grid in a target region, and the parameters are input into an optimal scheduling model to output an optimal scheduling strategy, so that the system operation cost is effectively reduced, and the system performance is improved. And the adaptability to new energy fluctuation and the risk management capability are enhanced.

This invention relates to the field of dielectric energy storage ceramics technology, specifically to a high-efficiency BiFeO3-BaTiO3-based relaxor energy storage ceramic, its preparation method, and its applications. The chemical composition of this material is 0.4Bi. 0.9 (Sm 0.5 Gd 0.5 ) 0.1 FeO3-(0.6-x)Sr 0.4 Ba 0.6 TiO3-xSr(Sn) 1 / 3 Zr 1 / 3 Hf 1 / 3 O3-y(40Bi2O3-40B2O3-20ZnO), abbreviated as BF-SBT-xS(SZH)-yBBZ, where x=0,0.05,0.08,0.10, and y takes values ​​of 0,3wt%), utilizes the synergistic refinement of polarization domains by multiple ions at the A and B sites and the reduction of remanent polarization (P r The value of Sr is used to improve energy storage efficiency (η). 2+ Ba 2+ Adjusting Curie temperature, dielectric constant, and temperature stability; introducing Sn 4+ Zr 4+ Hf 4+ This disrupts the localized structure at the B site, leading to relaxor ferroelectricity. Ultimately, compared to the matrix BiFeO3-BaTiO3, it significantly increases the breakdown field strength (E). b ), significantly increasing energy storage density (W). rec This reduces ferroelectric hysteresis and improves charging and discharging efficiency.

The utility model discloses an energy pile group hot accumulation adjusting system in a cold supply main area, which comprises a heat pump unit, a hot water user, an energy pile group, a heat storage pile group, a water inlet pipe, a water return pipe, a phase change pipe, a critical temperature sensing device, a temperature control switch and a hot water circulating pump, an inlet and an outlet of the heat pump unit are connected with an inlet and an outlet of the built-in buried pipe of the energy pile group through a main water inlet pipe and a main water return pipe. An inlet and an outlet of the hot water user are connected with an inlet and an outlet of the heat storage pile group built-in buried pipe through a main heat exchange water inlet pipe and a main heat exchange water return pipe. The energy pile group and the heat storage pile group are arranged in a crossed mode. The phase change latent heat of the inorganic phase change material is utilized, so that the energy storage efficiency of the energy pile is enhanced; and meanwhile, domestic hot water is provided through temperature control induction by utilizing the phase change heat storage pile, so that the problem of heat accumulation caused by the fact that heat released to soil in a cold supply main area is larger than absorbed heat is effectively solved, waste heat resources are effectively recycled, and resource waste is avoided.

The invention provides a geothermal type new energy power generation equipment set, and relates to the technical field of new energy power generation. Comprising a power generation car, a solar panel is arranged at the top of the power generation car, a battery containing chamber is arranged in the power generation car, control chambers are arranged on the two sides of the battery containing chamber, a control box and an inverter are arranged in each control chamber, and a storage battery is arranged in each battery containing chamber; different power generation states can be rapidly switched, different heat absorption modes are carried out according to different grounds containing terrestrial heat or water vapor, the energy storage efficiency of the power generation vehicle can be improved, the diversity of power generation is improved, and the power generation vehicle has the advantages of being convenient to use, safe and reliable. Meanwhile, heat lost by the earth surface can be reduced, heat loss of the nearby ground in the underground hot water exploitation process can be reduced, and meanwhile the power generation efficiency when steam or hot water sprayed out of a heat source in the earth crust is utilized for power generation is improved.