206 results about "Energy exchange" patented technology

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.

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 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 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 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.

The invention provides a load side power distribution network system based on three-level energy storage balance, belongs to the technical field of traffic road area power distribution networks and energy storage, and aims to solve the problems that a traditional road area power distribution network frame is fragile, unreasonable in source-load matching, difficult in green power consumption and low in equipment utilization rate in a cross energy fusion process under a dual-carbon target. According to the scheme, the system comprises a first-stage energy storage unit (connected with a 35kV transformer substation), a second-stage energy storage unit (connected with a 10kV power supply line), a third-stage energy storage unit (connected with a load area distribution transformer), a photovoltaic power generation unit and a control unit. After the control unit obtains related data, the control unit dispatches each unit to charge and discharge according to the logic of priority three-level on-site balance, second-level cross-court balance and last-level centralized balance, and consumes surplus photovoltaic electric energy. According to the invention, power distribution network source load balance and electric energy on-site consumption are realized, the green power ratio and the power distribution network efficiency are improved, the power utilization cost is reduced, and the construction of a novel power system is facilitated.

The utility model discloses a descaling machine of a waste heat exchange device, and relates to the technical field of waste heat energy exchange devices. The descaling machine of the waste heat exchange device comprises a heat exchanger, a fixed connecting seat is fixedly connected to the interior of the heat exchanger, a base is fixedly connected to the outer surface of the fixed connecting seat, a bearing seat is arranged on the outer surface of the fixed connecting seat, and a main transmission shaft and an auxiliary transmission shaft are fixedly connected to the interior of the bearing seat; a small transmission wheel and a large transmission wheel are fixedly connected to the outer surfaces of the main transmission shaft and the auxiliary transmission shaft, a driving transmission belt is arranged on the outer surface of the small transmission wheel, a driven transmission belt is arranged on the outer surface of the large transmission wheel, and a scraper or a brush is arranged on the outer surface of the driven transmission belt; according to the metal pipe cleaning device, a scraper or a brush is arranged on the driven transmission belt to wipe and clean a metal pipe, and the metal pipe cleaning device is convenient to use and efficient.

The utility model discloses an energy exchange conjoined photovoltaic greenhouse, a first greenhouse film, a photovoltaic panel and a waterproof breathable film enclose to form a first space, the waterproof breathable film and a wall body enclose to form a second space, energy exchange is carried out between the first space and the second space through the waterproof breathable film, and energy exchange is carried out between the first space and the second space through the waterproof breathable film. An unpowered draught fan is arranged on the first greenhouse film, a bidirectional draught fan is arranged on the wall body, a first space defined by the first greenhouse film, the photovoltaic panel and the waterproof breathable film and a second space defined by the waterproof breathable film and the wall body are arranged, and the energy temperature conversion process of the three spaces is achieved. And the energy and temperature conversion is a uniform process, hot gas rises, cold gas falls, the gas is exchanged by the waterproof breathable film, but water vapor does not run off and still flows into the greenhouse, so that the energy exchange efficiency is improved, and a more stable environment is provided for the greenhouse.

The invention discloses an industrial silicon smelting workshop intelligent power distribution system based on a flexible direct current micro-grid. The system comprises a three-level voltage flexible direct current interconnection framework, a distributed power supply access module, a key power electronic unit and a layered cooperative intelligent control module. The layered cooperative intelligent control module comprises a bottom equipment autonomous control layer, a middle micro-grid cooperative control layer and a top energy optimization management layer and is used for performing full-cycle energy optimization; the three-level voltage flexible direct current interconnection architecture comprises bidirectional energy exchange used for collection and access of large-scale renewable energy sources and an external power grid. Compared with the prior art, the industrial silicon smelting workshop intelligent power distribution system and the industrial silicon smelting workshop intelligent power distribution method based on the flexible direct-current micro-grid have the advantages that the reliability of the system is improved, the carbon emission intensity is reduced and the operation cost is optimized by constructing a three-level voltage flexible direct-current interconnection framework with'source-load-storage 'coordination.

A VR virtual simulation system for simulating a multi-scene dust diffusion process belongs to the technical field of dust visualization experiment devices, and comprises an integrated helmet, a handheld controller and multi-scene software which are in coupling connection; the multi-scene software achieves dust diffusion simulation based on the gas-solid two-phase flow physical principle, physical simulation calculation is conducted on dust diffusion behaviors by solving a control equation set describing gas-solid two-phase movement, and the control equation set comprises a drag force item, a gravity item and a turbulence coupling item. The calculation process considers momentum transfer, energy exchange and interaction force between the continuous fluid phase and the discrete particle phase; a VR virtual simulation experiment of a multi-scene dust diffusion process can be realized, and formation, diffusion and distribution characteristics and the like of dust in tunnel blasting, fully-mechanized excavation, lifting and typical transfer processes can be visually researched.

The invention provides temperature adjusting equipment and a control method and device thereof, electronic equipment and a light heat storage flexible system. The control method comprises the steps that according to historical operation data of the energy generation unit, a target demand of the energy storage unit is determined, and the target demand is a pre-cooling demand or a preheating demand; at least according to the target demand, a target energy pre-storage mode for starting the energy storage unit is determined, the target energy pre-storage mode is a pre-cooling mode or a preheating mode, the pre-cooling mode corresponds to the pre-cooling demand, and the preheating mode corresponds to the preheating demand; and according to the target pre-energy-storage mode for starting the energy storage unit, controlling energy circulation in the energy storage unit to perform energy exchange, and performing pre-energy-storage on the energy storage unit. According to the technical scheme, the energy consumption of the energy storage unit in the cold storage mode / heat storage mode can be reduced, the electric quantity purchased from a power grid is reduced, and the cost is reduced.

A conditioning system includes a liquid-to-air energy exchanger (LAEE) having a plurality of energy exchange (EX) circuits. The LAEE includes a single liquid panel, an air channel, and a plurality of membranes. The single liquid panel has a 5 plurality of liquid circuits through each of which a liquid is configured to flow. Each of the plurality of liquid circuits has a plurality of closed liquid channels through each of which a liquid is configured to flow without mixing with the liquid flowing through other of the plurality of closed liquid channels. Each of the liquid circuits corresponds to each of the plurality of EX circuits. The air channel is adjacent the 10 liquid panel and air is configured to flow through the air channel from an inlet of the LAEE to an outlet of the LAEE. The air channel extends adjacent all of the plurality of liquid circuits. The plurality of membranes is connected to the liquid panel. At least one of the plurality of membranes corresponds to each of the plurality of liquid circuits. Each one of the plurality of membranes is disposed between the respective 15 liquid circuit and the air channel. Each of the plurality of EX circuits is configured to exchange at least one of latent and sensible energy between a liquid flowing through the respective liquid circuit and the air.

This application belongs to the field of collaborative robot control technology, specifically disclosing a human-machine compliant interactive stability control method and system for achieving stiffness jumps. The method includes: real-time acquisition of the collaborative robot's end-effector interaction force and end-effector Cartesian velocity input to a fuzzy inference function to obtain human intention coefficients; calculation of the desired total stiffness and desired total damping at the current moment based on the human intention coefficients, and decomposition them into time-varying components and time-invariant basis components, respectively; employing an energy tank method to ensure system stability, calculating the filling rate of the energy tank based on the power dissipated by the basis damping when the energy tank is not full; if the energy tank is not depleted, using an energy exchange control method to replenish the collaborative robot with the energy required for time-varying stiffness and time-varying damping, and obtaining the desired velocity, desired position, and joint angle of the collaborative robot at the next moment. This method can dynamically and rapidly adjust admittance parameters according to the operator's intentions while ensuring the collaborative robot system remains strictly passive.

This invention discloses an in-situ lunar regolith thermal energy storage and controllable utilization device, relating to the field of lunar surface thermal energy storage technology. The invention includes: a lunar regolith thermal storage body, formed by high-temperature melting of in-situ lunar regolith for storing thermal energy; a heat spreader plate, disposed on the lower surface of the lunar regolith thermal storage body, serving as a channel for energy exchange between the lunar regolith thermal storage body and the outside; and a heat expansion component, fixedly connected to the heat spreader plate, used to improve the heating efficiency of the lunar regolith thermal storage body during the heating process. This invention achieves efficient storage of solar energy and redundant electrical energy during lunar daytime by combining the lunar regolith thermal storage body with a high-efficiency heat expansion component, and achieves stable energy release and cascaded utilization through a controllable heat release component, thereby realizing peak shifting and valley filling of lunar surface energy in both time and space dimensions.

Various embodiments include a method for operating a control platform for energy exchanges between a plurality of energy systems. The method may include: receiving information related to an intended energy exchange from the energy systems; calculating optimum energy exchanges between the energy systems; receiving a plurality of possible energy exchanges s from at least one of the energy systems; for each of the received possible energy exchanges s, performing an optimization method, and therefore calculating an associated partial solution Z(ζs); calculating the total solution from the plurality of partial solutions Z(ζs) depending on their probability values ζs; and controlling energy exchanges between the plurality of energy systems by the control platform on the basis of the determined total solution.

The application discloses an excitation current generating circuit and a control method for battery impedance spectrum measurement, and belongs to the field of battery impedance spectrum detection. The excitation current generating circuit generates an excitation current with a set frequency and amplitude on the connected battery system to perform battery impedance spectrum measurement. The excitation current generating circuit is connected in parallel with the battery system, an energy storage converter or a load. A mathematical model, an equivalent circuit model and a control method of the excitation current generating circuit are provided. Through closed-loop control of the port current of the excitation current generating circuit and the DC side capacitor voltage, the excitation current with controllable frequency and amplitude is generated by periodic energy exchange with the battery system. Compared with the prior art, the excitation current generating circuit provided by the application does not need to make any adjustment to the existing equipment in the energy storage system, adopts a battery system self-energy supply mode, and generates an excitation current for impedance spectrum measurement under low power consumption.

A method of operating a power converter for exchanging power with an alternating current (AC) grid includes: commanding one or more switches to selectively conduct a current between a DC storage device and the AC grid via a series combination of a resistor and an inductor; measuring a current through the series combination of the resistor and the inductor; and determining, based on the measured current, an estimated grid voltage of the AC grid. The one or more switches are commanded based on the estimated grid voltage. The power converter is operated in each of: a pre-synchronous mode before energy is exchanged between the DC storage device and the AC grid, and a post-synchronous mode while energy is exchanged between the DC storage device and the AC grid. Different techniques are used to determine the estimated grid voltage in the pre-synchronous mode and in the post-synchronous mode.

The application discloses a kind of car-network interaction service method and system considering electric vehicle non-inductive charging and discharging, the method of the present application includes obtaining time-of-use electricity price Cost and power grid voltage V from power distribution network operator;Utilize first fuzzy controller to obtain the energy flow perception index SPF of electric vehicle to determine the connection mode of electric vehicle;The power percentage of charging or discharging of electric vehicle is obtained by using second fuzzy controller to the energy flow perception index SPF of electric vehicle, the state of charge SOC of electric vehicle and the remaining departure time TRD;According to the power percentage of charging or discharging of electric vehicle, the charging pile accessed by electric vehicle provides charging or discharging for electric vehicle based on the power percentage.The present application aims to realize efficient and autonomous energy exchange between electric vehicle and power grid by considering electric vehicle non-inductive charging and discharging, and ensures that users participate in power grid charging and discharging without feeling.

The utility model relates to the technical field of protection circuits, in particular to a circuit for realizing line voltage protection. During normal power-on, the comparator CMP2 outputs a logic high level, the detection comparator CMP1 for detecting the line voltage is immediately started, when it is detected that the negative end voltage of the comparator CMP1 is lower than 1.25 V, the comparator CMP1 outputs the logic high level and controls the AND gate to output the logic high level, then the control unit works normally, and the power tube NPN1 is controlled to normally control energy exchange of the transformer T1; and in a normal power-on working period, if the line voltage suddenly rises and exceeds the VREF1, the comparator CMP1 outputs a logic low level, the AND gate is controlled to output the logic low level, the control unit outputs a high resistance state, the power tube NPN1 is not controlled, and the transmission energy of the transformer is zero, so that the line voltage protection is realized.

A motor air gap is a main place for realizing electromechanical energy exchange, and the distribution of an air gap magnetic field directly affects torque characteristics, efficiency, vibration noise and reliability. Therefore, accurate calculation of the air-gap magnetic field of the motor is a core basis for optimizing motor design and realizing high-performance control and fault diagnosis. In order to achieve the purpose, the technical scheme of the invention discloses a method for calculating an accurate air-gap magnetic field of a squirrel-cage asynchronous motor based on an air-gap magnetic field modulation theory. The calculation method provided by the invention is simple, high in precision, suitable for a motor design analysis stage, clear in physical concept and capable of accurately calculating the air-gap magnetic field of the squirrel-cage asynchronous motor.

The invention discloses a high-light-transmittance anti-melting hydrogel coating for an ice and snow structure and a preparation method thereof. The coating is based on an environment-degradable polyvinyl alcohol hydrogel system, a continuous protective layer is formed on the surface of an ice and snow matrix through physical-chemical double crosslinking, and the buffer and delay effects on interface moisture migration and energy exchange are achieved, so that sublimation and ablation of ice and snow are effectively slowed down under the environment conditions of temperature rise, wind erosion, heat radiation and the like. The hydrogel system has good wetting spreadability, transparency and film-forming uniformity, can be quickly constructed in a spraying manner, and has the characteristics of humidity regulation, moisture buffering and passive temperature regulation. Compared with the existing protection means depending on refrigeration or frequent manual maintenance, the invention provides a passive anti-melting scheme which is environment-friendly, low in energy consumption and suitable for protecting ice sculptures, snow sculptures and related ice and snow products.

The low-energy PVD coating device comprises a sputtering cathode, the sputtering cathode is loaded with a target material, the target material and a substrate are oppositely arranged, and the target material generates film material particles under the action of an electric field of the sputtering cathode; the energy adjusting plate is positioned between the substrate and the sputtering cathode and is provided with a via hole; the collision particle pipeline is connected with the collision particle source, the collision particle source is internally provided with preset inert gas, a gas outlet end opening of the collision particle pipeline is formed in the energy adjusting plate, and the conveyed inert gas moves towards the target material; the kinetic energy of the inert gas is smaller than that of the film material particles. As the inert gas has a relatively fixed flowing direction and is opposite to the incident direction of the film material particles, the energy of the film material particles is reduced from a high-energy state to a state close to the energy state of the just emitted gas particles through energy exchange of elastic collision, so that the film material particles with very low energy are obtained, and stable low-energy deposition coating is realized.

Various embodiments include a method for controlling an energy exchange among a plurality of energy systems using a control center, wherein a component of one of the plurality of energy systems is coupled to the control center via an interface module for data exchange. The method includes: transmitting a first data set to the interface module with a prediction profile regarding an energy exchange of the component; transmitting a second data set to the control center using the interface module including the first data set and component-specific data of the component; determining control data using the control center using the prediction profile and the component-specific data and data communicated to the control center by further energy systems to determine the control data; transmitting the determined control data to the interface module; and operating the component based on the control data.

The invention discloses a mountain new energy oriented power supply intelligent management method and related equipment, a mountain new energy area is divided into a plurality of management subareas, each management subarea is an area unit capable of independently operating, the reasonability of the management subareas in physical topology is realized, and each subarea maintains basic operation when communication is interrupted; acquiring a local power generation prediction value and a local load prediction value of the management partitions, and historical energy exchange data between the management partitions, determining local energy vacancy, and deducing a current energy state when communication is limited; an energy exchange analysis model is established based on a negotiation mechanism of local energy vacancy, and a planned energy exchange update value of a management partition is obtained through the energy exchange analysis model, so that distributed calculation is realized without central coordination; and generating an update necessity index to optimize the communication frequency, and reducing redundant communication when the energy state is stable.

This invention relates to the field of power Internet of Things and smart distribution network monitoring technology, and discloses a smart scheduling system for highway charging resources. The system includes: a dual-end source-side three-level rectification and busbar construction module, which constructs a bipolar three-wire DC transmission busbar between two service areas; a cross-regional transmission line impedance identification and status sensing module, which calculates the distributed inductance and capacitance parameters of long cables in real time; a terminal multi-port adaptive power routing module, which physically selects the voltage level to suit vehicle demand through a switch matrix; and a distributed parameter resonance locking and drive control module, which locks the operating frequency to the line's intrinsic resonant frequency and uses distributed parameters to achieve soft switching. This invention achieves long-distance energy exchange and voltage adaptive matching through cross-regional interconnection and multi-level routing, and transforms line parasitic parameters into resonant elements, reducing transmission losses.

The application provides a kind of energy transmission device based on dynamic wireless vehicle-to-vehicle charging technology, including transmitting unit, receiving unit and radar data unit;Transmitting unit includes transmitting coil, receiving unit includes receiving coil;Radar data unit includes radar sensing module, data planning module, for judging the position of receiving coil on the vehicle to be charged, and the data planning module is used to control the coil according to the information collected by the radar sensing module.The beneficial effects of the present application are as follows: a kind of energy transmission device based on dynamic wireless vehicle-to-vehicle charging technology, realizes the energy exchange between electric vehicles and another electric vehicle, and better overcomes the problem of efficiency reduction caused by coil offset, provides real-time and convenience for wireless electric energy charging, and has broad market prospect.

A method for operating a power converter to exchange power with an alternating current (AC) grid and a system for a power converter to exchange power between a DC storage device and an AC grid are provided. The method includes: commanding one or more switches to selectively conduct current between the DC storage device and the AC grid via a series combination of resistors and inductors; measuring the current through the series combination of resistors and inductors; and determining an estimated grid voltage based on the measured current. The one or more switches are commanded based on the estimated grid voltage. The power converter operates in each of the following modes: a pre-synchronization mode before energy exchange between the DC storage device and the AC grid, and a post-synchronization mode during energy exchange between the DC storage device and the AC grid. Different techniques are used to determine the estimated grid voltage in the pre-synchronization mode and the post-synchronization mode.

A system for generating power with reduced or negative carbon emissions. The system includes a power plant portion having a power generation unit having an input coupled to a supply of a hydrocarbon fuel and having an energy exchange pathway. The system also includes a direct air capture (DAC) portion having a CO2 adsorption device having a CO2 adsorption material and a blower electrically coupled to the power generation unit, the blower directing a flow of air through the CO2 adsorption device in a carbon capture mode, wherein the CO2 adsorption device is coupled to and in energy communication with the energy exchange pathway for releasing adsorbed CO2 in a carbon release mode.