520 results about "Energy exchange" patented technology

The invention provides a time division multiplexing multi-parameter synchronous sensing method and system based on a multi-core optical fiber. A multi-core optical fiber containing three heterogeneous fiber cores is embedded into a measured object, and a distributed reflection grating array forming an inclined angle with the axial direction is inscribed on the surface of each fiber core; energy exchange data between modes of all fiber cores and reflection grating wavelength shift signals are synchronously collected by adopting a time division multiplexing technology, phase difference signals are extracted through a cross correlation algorithm to serve as curvature reference values, dynamic compensation operation is carried out on the wavelength shift data and the phase signals, and accurate strain distribution is obtained after temperature interference is effectively eliminated; a coordinate transformation model is established by combining the three-dimensional geometric parameters of the spiral optical fiber, vector synthesis is performed on the curvature reference and the strain parameters, and accurate reconstruction of the three-dimensional deformation field of the measured object is realized. According to the technical scheme provided by the invention, through multi-core fiber multi-parameter synchronous sensing and three-dimensional coordinate mapping, temperature self-compensation high-precision three-dimensional deformation field real-time reconstruction is realized.

The invention provides a method for realizing in-phase online equalization of a modular battery energy storage system based on an NLM, and the method comprises the steps: S1, regularly obtaining SOCj, x and (1-SOC) j, x, rechargeable energy SOEj, x and dischargeable energy SODEj, x of a module DC side battery through a battery management system BMS according to an equalization control period Tequ; s2, acquiring an equalization index of each module according to engineering requirements, determining an input priority sequence during charging and discharging, and generating a battery voltage queue of all modules; and S3, obtaining the size of a modulation wave in each power control period, and determining the first k modules which should be input currently and the total number k of the input modules. In-phase equalization is realized by fully utilizing an alternating-current reactive energy exchange process and a reactive state of the system, a blind area of a traditional method is eliminated, an application range of the in-phase equalization is expanded, in-phase module equalization is realized in each power frequency period, an operation boundary of the system is not influenced at all, charging of some modules in one power frequency period is realized, and charging efficiency is improved. Some modules discharge, and the equalization speed is higher.

The invention belongs to the technical field of wind power generation, and particularly relates to a wind storage combined system for coordinated control of hybrid energy storage equipment and a control method. Wherein the wind generating set is used for converting wind energy into electric energy and outputting the electric energy to a power grid; the energy storage equipment comprises a battery energy storage system and a super capacitor; the direct current bus is used for being connected with the wind generating set, the battery energy storage system and the super capacitor through a control system and performing energy exchange with a power supply grid; and the control system is used for carrying out coordinated control on the energy storage equipment based on different power regulation requirements. According to the invention, the problems of power grid frequency fluctuation and power imbalance caused by wind speed fluctuation of the wind power generation system can be solved. Two different types of energy storage devices are integrated, cooperative regulation and control are carried out by utilizing respective characteristics of the energy storage devices, and power dispatching and frequency modulation control of different time scales are realized, so that the stability of a wind power generation system and the reliability of a power grid are improved.

The invention discloses an air conditioning-storage-charging micro-grid and power distribution network collaborative optimization control method, which comprises the steps of constructing a multi-target optimization model with low carbon, economical efficiency and low load as targets, and realizing dynamic prediction and rolling optimization of a system state based on model prediction control; introducing an online decision-making tool, and dynamically adjusting an energy exchange strategy of the micro-grid and the power distribution network according to the air quality and the operation state; and the control effect is verified through system simulation. Compared with an existing static optimization method, the method has the advantages that dynamic cooperative mutual aid control under multiple targets is achieved, higher real-time performance, higher adaptive capacity and higher operation efficiency are achieved, and the stability and the overall performance of a building energy system in a complex environment are remarkably improved.

The invention relates to the technical field of energy exchange transportation and low-carbon operation and maintenance, in particular to an expressway service area carbon emission prediction method based on space-time diagram embedding, and the method comprises the steps: obtaining a portal frame and vehicle passing counting streams of entrances and exits of all service areas, constructing a dynamic topology and space-time prediction frame based on corridor-level tensors, and carrying out the prediction of the vehicle passing counting streams. Generating a traffic flow embedding vector and a comprehensive parking intensity curve; the method comprises the following steps: mapping a service area into an intelligent agent by combining a comprehensive parking intensity curve, dividing a scheduling cluster, carrying out three-section carbon pulse penalty and distributed strategy gradient training, freezing an intelligent agent strategy, generating an emission matrix and a thermodynamic diagram based on a power plan and an emission factor library, and comparing predicted and actually measured emission splitting errors to obtain a scheduling result. By generating the corridor-level emission matrix and the thermodynamic diagram, the predicted emission and the actually measured data are compared grid by grid, the traffic flow embedding distortion and the equipment strategy drift error are split by adopting the double-pointer method, and the long-term stability of the carbon emission prediction precision and the scheduling effect is ensured.

System and method for distributed operation of a local energy community. The system (100) comprises an ADMM coordinator (140) and an energy management system (136) at each community member (130) configured to: define an initial optimization problem for each community member i disregarding community presence; solve each initial optimization problem, obtaining a first residual balancing variable (initi,t); obtain a second residual balancing variable (capi,j) representing the maximum current of power line (126) connecting community member i with community member j; and define an optimization problem to minimize energy exchanges with the main grid (110); solve, in combination with the ADMM coordinator (140), the optimization problem in a distributed manner using an ADMM algorithm to obtain energy exchanges between the community members (130) and the main grid (110) for each time period t of a set of time periods T; and apply the plurality of energy exchanges for the corresponding community member i (130) in each time period t.

The invention belongs to the technical field of carbon dioxide capture and utilization and geological sequestration, and discloses a numerical simulation method for migration of CO2 in stratum.The method comprises the steps that an actual stratum complex geological model is constructed, and then a numerical simulation model is obtained; finely adjusting the numerical simulation model to limit fluid channeling and external substance and energy exchange, and ensuring rapid convergence of operation; the injection of CO2 in different layers is simulated, and the influence of the injection layers on the migration law is analyzed; cO2 injection at different injection speeds and temperatures is simulated to analyze the influence of the injection speeds and temperatures on the migration law; cO2 is simulated to be injected at different injection temperatures under the condition of consistent initial salt concentration, and the influence of dissolved salt on migration and dissolution rules is analyzed; the injection of CO2 at different positions of the reservoir is simulated, and the influence of the injection well position on CO2 storage is analyzed; and optimizing well position arrangement to obtain an optimal well pattern scheme. According to the method, the results of various influence factors are comprehensively analyzed, and then the migration rule of CO2 in the stratum is accurately obtained.

The invention relates to the technical field of electric vehicle thermal management. The invention provides an indirect integrated thermal management system based on an R290 refrigerant and a control method thereof, the system can comprehensively manage heat of a battery loop, an electric drive system and a passenger compartment environment, and performs energy exchange with an external environment, so that temperature control of a battery, the electric drive system and the passenger compartment is realized, and the service life of the battery loop, the electric drive system and the passenger compartment is prolonged. The battery and the electric drive are in a proper working temperature range, the problems of high-temperature thermal runaway or capacity attenuation of the battery, demagnetization of an electric drive system and the like are avoided, the safety and the service life of the whole vehicle are further improved, and meanwhile the requirement for thermal comfort of a passenger compartment can be met. In addition, the working condition of waste heat utilization of a battery or an electric drive system can be achieved through switching of water ways and flow distribution, and the system efficiency can be improved in winter.

The invention relates to the technical field of civil construction engineering, in particular to effective utilization of geothermal resources and improvement of an energy exchange system. According to the energy pile, dynamic regulation and control of stratum heat balance are achieved through the active heat management technology, and the influence of heat accumulation on sustainable utilization of geothermal resources is effectively prevented; a composite heat extraction structure is adopted, and the heat absorption efficiency of geothermal resources is remarkably improved; a high-thermal-conductivity energy pile comprises a fixed base body, and a water circulation assembly is embedded in the fixed base body. The water circulation assembly comprises a water pumping assembly, a circulation pipeline and a water conveying assembly which are communicated with one another; a heat absorption device is arranged on the outer side of the fixed base body and comprises a plurality of heat absorption columns which are vertically distributed; the heat absorption column is provided with a heat conduction head embedded into the fixed base body.

The utility model discloses an ozone tail gas membrane pool release system which comprises a membrane pool, an ozone reaction pool, an ozone generation assembly and a tail gas utilization assembly. A membrane module is arranged in the membrane tank, a water production port of the membrane module is communicated to the ozone reaction tank, and the ozone reaction tank is provided with a tail gas outlet. The ozone generation assembly comprises a high-pressure oxygen supply pipe, an ozone generator, a first aerator and a second aerator, the first aerator is arranged in the ozone reaction tank, the second aerator is arranged in the membrane tank, and the ozone generator is communicated with the first aerator to provide ozone for the ozone reaction tank; the tail gas utilization assembly comprises an energy exchange device, a tail gas outlet communicates with the low-pressure side of the energy exchange device, an outlet of the low-pressure side communicates with the second aerator, a high-pressure oxygen supply pipe communicates with the high-pressure side of the energy exchange device, and an outlet of the high-pressure side communicates with an air inlet of the ozone generator.

The invention particularly discloses an ocean mesoscale vortex energy conversion analysis method, and relates to the technical field of ocean dynamics. The method comprises the following steps: firstly, determining basic characteristics of a target vortex based on satellite remote sensing and observation data, obtaining high-resolution gridding data, determining a vortex center and a boundary by using a vortex detection algorithm, and constructing a trajectory through a tracking algorithm; secondly, energy conversion of the vortex and the average flow is quantified by means of an oblique pressure conversion term and a positive pressure conversion term; and finally, the contribution of power items such as positive pressure instability, oblique pressure conversion and wind stress input to the vortex kinetic energy is quantified by utilizing a vortex kinetic energy contracting and expanding equation. According to the method, the detection precision of the weak-amplitude and short-life vortex is improved, quantitative calculation of vortex energy exchange is realized, and the method can be widely applied to vortex energy income and expenditure analysis.

The invention provides an AC-DC hybrid micro-grid system suitable for a stacked three-dimensional caged chicken coop and a control method, and the system comprises three-dimensional chicken coop electrical loads which comprise an AC-side load and a DC-side load; a photovoltaic power generation system in the direct current subnet comprises a photovoltaic array considering shadow shielding power optimization and a Boost circuit; the lithium battery energy storage system in the direct current subnet comprises a lithium battery pack and a bidirectional buck-boost circuit; a wind power generation system in the AC subgrid; the bidirectional AC / DC converter is responsible for energy exchange between the direct current subnet and the alternating current subnet; the harmonic wave processing unit is responsible for processing various harmonic waves from a photovoltaic system, an energy storage system, a wind power generation system and a nonlinear load of a chicken house; the energy management and control method comprises a grid-connected and off-grid smooth switching strategy, a pre-synchronization control strategy, a grid-connected energy management strategy based on time-of-use electricity price and a nonlinear MPPT optimization strategy considering multiple peaks of photovoltaic array power.

The invention relates to the technical field of flocculants, and discloses a flocculant capable of degrading sewage and a preparation method of the flocculant, thiourea, sulfydryl and other groups in an alkenyl thiourea cysteine monomer have excellent adsorption and chelation effects on heavy metal ions, and stable complexes and chelate precipitates can be formed, so that heavy metals are removed from wastewater; sulfydryl and carboxyl in the structure are easily soluble in water, so that the solubility of chitosan is improved, and the coordination capability is improved; the positively charged quaternary ammonium salt cations in the flocculant can adsorb more kaolin particles and neutralize charges on the surfaces of the particles to generate an adsorption bridging effect, and can influence substance energy exchange and normal metabolism of bacterial cell membranes at the same time, so that bacteria are inhibited or killed, and a sterilization effect is achieved; the prepared flocculant still has a good flocculation effect on heavy metal ions after being desorbed and recycled for multiple times, can be recycled, and is non-toxic, harmless and biodegradable.

The embodiment of the invention provides a remote area-oriented electric energy quality comprehensive treatment method and system, and the method comprises the steps: collecting the operation parameters of a power grid through a detection module; calculating an electric energy quality index based on the power grid operation parameters, carrying out standardization processing on the electric energy quality index, and constructing a state vector; inputting the state vector into energy management software based on an improved DQN algorithm model, and generating a charging and discharging power instruction corresponding to the hybrid energy storage unit; and receiving the charging and discharging power instruction through the power conversion module, and controlling the hybrid energy storage unit and the power grid to perform energy exchange so as to realize electric energy quality treatment. According to the technical scheme provided by the invention, adaptation to a complex power grid in a remote region can be realized, a multi-dimensional power quality problem can be synergistically treated, the response speed and the system safety are improved, the power quality comprehensive index and the system operation efficiency are finally improved, and a support is provided for safe, stable and efficient operation of the power grid in the remote region.

The invention provides a crop growth monitoring analysis system and method based on machine learning, and belongs to the technical field of crop growth monitoring. The monitoring analysis system comprises a data acquisition module used for acquiring biomechanical characteristic data of crops and energy exchange data of an SPAC system; the data processing module is used for preprocessing the data to generate a mechanical feature set and an SPAC feature set; the model construction module is used for constructing a multi-layer model architecture which comprises feature association, crop growth state evaluation and crop growth abnormal condition cause traceability reasoning; the model training module is used for constructing a training data set, training the multi-layer model architecture in combination with a transfer learning strategy, and updating the multi-layer model architecture by utilizing an optimization mechanism; and the monitoring analysis output module is used for visually displaying a crop growth monitoring analysis result and generating corresponding farming suggestions and measures. According to the method, the accuracy of stress risk early warning is improved, the model adaptability is improved, and the long-term monitoring precision stability of the model is improved.

The invention relates to the cross technical field of community energy management and electric vehicle charging technology, in particular to a community micro-grid system based on vehicle-network interaction and a control method thereof, the system adopts an alternating current bus framework to realize bidirectional energy exchange, and the system comprises an intelligent micro-grid power distribution unit used for distribution, monitoring and management of electric power in a community, dynamically adjusting a power distribution scheme; the charging pile is used for receiving the vehicle information and transmitting the vehicle information to the intelligent micro-grid power distribution unit to discharge the power grid and charge the vehicle; the comprehensive management platform comprises an energy management platform and a vehicle operation platform, performs bidirectional energy exchange on the vehicle and the intelligent micro-grid power distribution unit, and cooperates with the intelligent micro-grid power distribution unit and the charging pile to manage the vehicle; the method optimizes the load of the community power grid, reasonably adjusts the charging and discharging events and power of the electric vehicles, reduces the load pressure of the power grid in the peak period, can meet the charging demands of the electric vehicles in the community, and also reduces the construction and transformation cost of the power grid.

The invention discloses a smart park energy management method and system, and particularly relates to the field of smart park energy distributed storage management, and the method comprises the steps: obtaining state data through collecting the energy state parameters of energy storage equipment, dividing the state data into equal-length time slices according to a time sequence, and storing the equal-length time slices; the power change rate, the load offset and the output difference value are counted in each equal-length time slice, and the statistical result is combined with the charging moment, the discharging moment, the power value and the write-in time to generate an operation record; according to the method, the charging power and the discharging power of the distributed energy storage equipment are uniformly planned according to the equal-length time slices, the scheduling matrix is constructed in combination with the capacity boundary condition, and the operation intentions of the equipment are synchronized before execution so as to quickly identify and eliminate the cross-node conflicts; therefore, the problems of energy exchange bus contention, storage queue blockage and log loss caused by a multi-autonomous-equipment parallel triggering strategy in a traditional scheme are solved.

The invention discloses an electric vehicle time sequence classification aggregation frequency modulation optimization model considering responsivity. The model comprises the following steps: establishing a power energy operation boundary for performing energy exchange of an EV; classifying each single EV according to the EV network access time and the network access time period, and aggregating the power operation boundary and the energy operation boundary of the single EVs with the same network access time period to obtain an EVA time sequence classification aggregation model; depicting the relationship between different types of EV responsivity and price excitation through the Weber-Fechner law according to the EV classification to obtain an EVA time sequence classification aggregation model considering the responsivity under charging and discharging excitation; and by considering the day-ahead and real-time two-stage income and cost of the EV participating in the energy-frequency modulation market after EV classification aggregation, and by taking the maximum EVA operation income as a target, establishing an EVA time sequence classification aggregation frequency modulation optimization model capable of giving consideration to both precision and efficiency. The model is used for accurately and efficiently evaluating the EVA frequency modulation capability, formulating an incentive mechanism and optimizing an EVA operation strategy.

The invention provides an energy storage capacity optimal configuration method and device under green power proportion constraint, and belongs to the field of planning and operation of a power system. The method comprises the steps that an energy storage capacity optimal configuration model is constructed, the objective function of the model is to minimize the energy storage capacity of a to-be-planned object, and constraint conditions comprise power generation power and load power constraint, energy balance constraint, energy exchange constraint, energy storage operation constraint and green power proportion constraint; and after bilinear constraints in the energy exchange constraints and the energy storage operation constraints are converted into mixed integer linear constraints, solving the updated energy storage capacity optimal configuration model to obtain an optimal value of the target function, namely an optimal result of energy storage capacity configuration. According to the invention, matching between new energy power generation and a load time sequence can be realized, the green power consumption proportion of a park or a user equipped with distributed new energy power generation is improved, and the environmental protection is improved while the power demand is satisfied.

The utility model discloses a factory energy storage test system which comprises a first low-voltage cabinet and an isolation transformer which is connected to the wire outlet end of the first low-voltage cabinet and provides electrical isolation. The second low-voltage cabinet is connected to one line outgoing end of the isolation transformer so as to protect and monitor the circuit; the third low-voltage cabinet is connected to the other line outlet end of the isolation transformer so as to protect and monitor the circuit; the energy storage converter is divided into two paths which are connected with the second low-voltage cabinet and the third low-voltage cabinet in a one-to-one correspondence manner to convert alternating current into direct current for output; and the cable switching cabinet is connected with the output positive and negative electrodes of the energy storage converter and the positive and negative electrodes of the battery cabin, so that electric energy flows between the energy storage converter and the battery cabin. The system can adapt to different voltage and power demand scenes, supports off-grid operation, grid-connected operation and testing in a twin-trawling mode, can be seamlessly switched between a grid-connected mode and an off-grid mode, can realize energy exchange between two groups of independent energy storage batteries, reduces energy consumption, improves energy efficiency, and reduces energy cost.

The invention provides a multi-family energy storage cooperative power supply system and method based on neighborhood elasticity, and relates to the technical field of power systems and energy storage. The system comprises: a neighborhood discovery module, which is used for establishing a collaborative micro-grid when a grid fault occurs; the off-grid switching module is used for forming an island micro-grid to supply power to neighborhoods; the power supply reputation module is used for calculating a reputation integral value of each family node; the power scheduling control module is used for generating a power scheduling instruction according to the power utilization demand, the energy storage state and the reputation integral; and the grid-connected clearing module is used for automatically calculating an energy exchange clearing result after the power grid is recovered. The method correspondingly comprises the steps of networking and switching, cooperative power supply, grid connection and liquidation and the like. According to the invention, the reliability and toughness of community emergency power supply can be improved, and full-process automatic management is realized.

The invention discloses a point-to-point energy scheduling method, device, equipment and medium for a multi-energy micro-grid, and the method comprises the steps: constructing a multi-energy micro-grid optimization model containing power, gas and heat energy according to the network coupling constraint, equipment characteristic constraint and scheduling operation constraint of an energy micro-grid; carrying out distributed iteration solution on the multi-energy microgrid optimization model by adopting an alternating direction multiplier algorithm to obtain P2P energy exchange capacity among the microgrids; on the basis of the P2P energy exchange capacity, calculating a P2P energy exchange price by adopting a RBS (Rupinstein bargaining solution) strategy to obtain an excitation signal of micro-grid energy exchange; and obtaining a comprehensive scheduling scheme of the microgrid according to the P2P energy exchange capacity and the excitation signal. According to the invention, multi-energy cooperation can be carried out, information security is guaranteed, and interaction fairness and resource utilization rate are improved.

The invention provides a digital energy adapter, a DESS system and a processing method of the DESS system. The adapter comprises an adapter CPU and an adapter FPGA. One end of the adapter CPU is connected with the adapter FPGA, and the other end of the adapter CPU is in two-way communication connection with an upper cloud end or a host through a network. The adapter FPGA comprises a data cache region, an information flow control module, an analog quantity control module and an optical fiber communication module; and the adapter FPGA is connected with the digital energy switch through an optical fiber. The adapter FPGA is respectively connected with the energy assembly and the energy storage converter PCS through the DC input and output unit, and controls the input and output of energy. According to the digital energy adapter, the DESS system and the processing method of the DESS system, the communication speed and the real-time performance of the digital energy adapter are improved, the flexibility of the digital energy adapter for dealing with abnormal conditions and the accuracy of monitoring the system are enhanced, and the task load borne by a CPU (Central Processing Unit) can be reduced.

A mobile energy network system (200), which comprises: a mobile energy robot (205) configured to store electrical energy and perform bidirectional charging and discharging and capable of moving within a preset range; an energy gateway (210) configured to connect to an electrical grid and / or an electrical microgrid; an automatic docking device (215) configured to connect the energy gateway to the mobile energy robot, wherein a first end of the automatic docking device is connected to the energy gateway, and a second end of the automatic docking device can be automatically docked to and separated from the mobile energy robot, and when the mobile energy robot moves to a preset position near the automatic docking device, the mobile energy robot is automatically docked to the automatic docking device so as to realize a bidirectional flow of electrical energy between the mobile energy robot and the electrical grid and / or the electrical microgrid; and an energy management and dispatching platform (220) configured to manage and dispatch the flow of electrical energy in the mobile energy robot, the energy gateway and the automatic docking device. The present application further includes an energy exchange method, a virtual power plant system and a demand-side response method.

A self-regulating appliance operable as an air-exchanger, humidifier, dehumidifier, air scrubber, and air sterilizer. The appliance includes a cabinet defining an interior with a plurality of fluid passageways, a first inlet configured to receive a first air flow from a dwelling interior, a second inlet configured to receive a second air flow from a dwelling exterior, a first outlet configured to deliver a third air flow to the dwelling interior, and a second outlet configured to deliver a fourth air flow to the dwelling exterior. At least one blower is fluidically coupled to the first and second outlets to expel the third air flow to the dwelling interior and the fourth air flow to the dwelling exterior. The cabinet also includes an energy exchange core and a desiccant wheel. The desiccant wheel configured to rotate to transfer moisture and sensible energy between at least two air streams.

The invention provides a transformer oil circulation intelligent cooling method and system. Wherein the dynamic correlation model is constructed by detecting temperature and flow velocity data of different depths in the transformer, and periodic direction deflection control is applied in an oil flow path to form spiral rotation disturbance so as to trigger local energy exchange. And based on the predicted oil temperature evolution trend, the power intensity and disturbance amplitude parameters of the oil pump are synchronously adjusted, and dynamic balance between the flowing state and temperature distribution is established. And in combination with disturbance trajectory offset characteristics, dynamically matching frequency and phase parameters of direction deflection, so that the heat conduction direction and the main stream direction form directional cooperation. And model parameters are updated by utilizing heat conduction path characteristics and dynamic balance constraints, and a control instruction for inhibiting temperature sudden change is generated through reverse constraints, so that intelligent cooling regulation and control are realized. According to the technical scheme, oil flow is regulated and controlled through cooperation of spiral disturbance and the dynamic model, sudden temperature change is restrained, heat conduction is optimized, and the cooling efficiency and stability of the transformer are improved.

A coupling system for liquefied natural gas re-gasification and liquid air energy storage. The coupling system comprises a liquefied natural gas re-gasification system and a liquid air energy storage system. The liquefied natural gas re-gasification system comprises: a heat exchanger-natural gas (HX-NG) connected to a liquefied natural gas re-gasification path. The liquid air energy storage system comprises: a heat exchanger-charge (HX-C) connected to a main gas liquefaction path, a heat exchanger-discharge (HX-DC) connected to a liquefied main gas re-gasification path, and a cold dewar (CD), wherein a first heat exchange cycle where cold energy exchange is performed with a first heat exchange medium is formed between the heat exchanger-natural gas and the heat exchanger-charge; and a second heat exchange cycle where cold energy exchange is performed with a second heat exchange medium is formed among the heat exchanger-charge, the cold dewar and the heat exchanger-discharge. In the first heat exchange cycle, a hot end of the heat exchanger-natural gas is connected to a hot end of the heat exchanger-charge, and a cold end of the heat exchanger-natural gas is connected to a cold end of the heat exchanger-charge; and in the second heat exchange cycle, hot ends of the heat exchanger-charge, the cold dewar and the heat exchanger-discharge are connected, and cold ends of the heat exchanger-charge, the cold dewar and the heat exchanger-discharge are connected. In the present invention, regardless of whether the liquid air energy storage system is in a charging working state, a standing working state or a discharging working state, effective coupling utilization of cold energy and heat energy between the liquid air energy storage system and the liquefied natural gas re-gasification system can be realized, improving the effective coupling utilization rate of cold energy and heat energy between the systems.

The invention relates to the technical field of liquid flow energy storage batteries, and provides a liquid flow energy storage capacity integration system which comprises a system body, the system body comprises a container, a negative electrode storage tank and a positive electrode storage tank, the negative electrode storage tank and the positive electrode storage tank are installed in the container, and an electric pile power system is connected to the upper end of the container. Circulating systems are arranged between the cathode storage tank and the galvanic pile power system and between the anode storage tank and the galvanic pile power system and used for electrolyte flowing, each circulating system comprises a liquid inlet component connected to the galvanic pile power system through the storage tank and a backflow component connected to the storage tank through the galvanic pile power system, and an evaporator for energy exchange is arranged in the backflow component connected to the storage tank through the galvanic pile power system. The evaporator comprises an outer shell and heat exchange pipes circumferentially arranged in the shell, the multiple heat exchange pipes distributed circumferentially are arranged, then spiral blades are installed in the space formed in the heat exchange pipes, and the spiral blades can guide liquid in the center of the evaporator in the radial direction; and therefore, the electrolyte can be in more sufficient contact with the heat exchange tube to realize heat exchange.

The utility model provides a voltage sag resistant circuit and a motor, the circuit comprises an energy storage module, the energy storage module comprises a first capacitor, a second capacitor, a first diode, a second diode and a third diode, the second end of the first capacitor is connected to the cathode of a first diode, and the anode of the first diode is grounded; the cathode of the second diode is connected to the energy exchange end of the circuit, the anode of the second diode is connected to the first end of the second capacitor, and the second end of the second capacitor is grounded; the anode of the third diode is connected between the first capacitor and the first diode, and the cathode of the third diode is connected between the second diode and the second capacitor. According to the anti-voltage sag circuit and the motor, the motor can be kept running continuously when voltage sag occurs. In addition, the circuit and the motor are small in size and low in cost, and the power factor of the system can be improved.

The invention discloses a virtual power plant transaction method based on a traffic-energy fusion scene, and belongs to the technical field of virtual power plant transaction, and the method comprises the following steps: (1) traffic-energy data fusion collection and preprocessing; (2) carrying out hierarchical resource aggregation and state evaluation; (3) dynamic transaction demand prediction and matching; (4) block chain trusted execution and feedback optimization; and (5) battery full life cycle collaborative management. According to the invention, the efficient collaborative transaction of traffic and energy resources can be realized, the resource collaborative efficiency is greatly improved, the transaction response speed also meets the power grid demand, a trusted secure transaction system is constructed, the maximum utilization of the battery value is realized, and the economic benefit and the environmental benefit are remarkable.